Archiving System Research Articles

Is there a risk of further displacement of the fractured fragment into the spinal canal in osteoporotic vertebral burst fractures after unilateral PKP? A prospective study

BACKGROUND CONTEXTThe optimal treatment for osteoporotic vertebral burst fracture (OVBF) without neurological symptoms is still a matter of debate. PURPOSETo evaluate the safety and efficacy of percutaneous kyphoplasty (PKP) for OVBF. STUDY DESIGNThe study is a prospective study and is registered in the China Clinical Trials Registry with the registration number ChiCTR-OOC-17013227. PATIENT SAMPLEThe study involved 119 patients with 137 fractured vertebrae who underwent unilateral PKP for OVBF. OUTCOME MEASURESThe measurements were carried out independently by two physicians and measured with picture archiving and communication system (PACS) and ImageJ software (National Institutes of Health, Bethesda, MD, USA). METHODSThe change in the spinal canal area and posterior wall protrusions (PWP) were measured before and after surgery via three-dimensional computed tomographic imaging (CT). Preoperative, postoperative, and final follow-up standing X-rays were used to measure the height of the anterior wall (HAW), height of the posterior wall (HPW), and local kyphotic angle (LKA). Additionally, visual analogue scale (VAS) and the Oswestry Disability Index (ODI) were also determined. RESULTSAmong the 137 vertebrae assessed, 79 exhibited an increased postoperative canal area, while 57 showed a decrease, with mean values of 8.28±6.871 mm² and −9.04±5.991 mm², respectively. Notably, no significant change in postoperative canal area was identified on the entire dataset (p>.01). There was a significant decrease between median preoperative (3.9 [IQ1-IQ3=3.3-4.8] mm) and postoperative (3.7 [IQ1-IQ3=3.0-4.4] mm) PWP (p<.01). Preoperative and postoperative HAW measurements were 19.4±6.1 mm and 23.2±5.2 mm, respectively (p<.01). However, at the final follow-up, the HAW was lower than the postoperative value. The HPW was also significantly improved after surgery (p<.01), but at the final follow-up, it was significantly decreased compared with the postoperative measurement. Following surgery, KA was significantly corrected (p<.01); however, at the final follow-up, relapse was detected (average KA: 18.4±10.3°). At the final follow-up, both VAS and ODI were significantly improved compared with the preoperative period (p<.01). As for complications, 50 patients experienced cement leakage, and 16 patients experienced vertebral refracture. All patients did not develop neurological symptoms during the follow-up. CONCLUSIONSOVBF without neurological deficits showed significant improvement in symptoms during the postoperative period after PKP. There was no notable alteration in the spinal canal area, but a significant decrease in PWP was observed. Consequently, we posit that PKP stands as a secure and efficacious surgical intervention for treating OVBF cases devoid of neurological symptoms.

Development of a dental digital data set for research in artificial intelligence: the importance of labeling performed by radiologists

ObjectiveTo present the development of a database (dataset) of panoramic radiography images. Study DesignThree radiologists labeled an image set consisting of 936 panoramic radiographs. Labeling includes tooth numbering (including teeth present and missing) and annotation dental conditions (e.g., caries, dental restoration, residual root, endodontic treatment, implant, fixed prosthesis, incisal wear). The annotation process was performed in a Picture Archive and Communication System (PACS) software customized for the study purposes, using a small bounding box to delimit the entire tooth and items for radiographic diagnosis, and a large bounding box to simultaneously delimit the 2 dental arches (maxilla and mandible). A Java Script Object Notation (JSON) file was generated for each annotation. ResultsThe database encompassing 23,619 annotations, disagreement between radiologists occurred in 0.7% of the notes. ConclusionsThis work aims to inform researchers about the importance of the labeling process, in addition to providing the scientific community with a bank of labeled images to implement artificial intelligence systems in clinical practice. Statement of clinical relevanceRadiologists are reference for generating accurate and reliable labels on images for training artificial intelligence systems. Accuracy of the labels are essential characteristics for learning and for the subsequent reliable use of the artificial intelligence system in the clinical area.

Celiac Disease and Intussusception: A Common Association in Children.

In young childhood, intestinal intussusception (IS) is the most common cause of small bowel obstruction. A lead point such as Meckel diverticulum, polyps, tumors, enlarged lymph nodes, cystic fibrosis, and Schoenlein-Henoch purpura are recognized causes. Association between celiac disease (CD) and IS has been well recognized in adults but rarely in children. Data on causes and outcome of intussusception among Saudi children are lacking in the literature. Our objectives were to characterize the pattern of IS among Saudi children and investigate the frequency, clinical presentation, and outcome of intussusception among children with CD. We searched the hospital's picture archiving and communications system for abdominal imaging studies (ultrasound, magnetic resonance imaging, computed tomography scan, and barium contrast studies), performed between 2008 and 2019, using "intussusception" as a search key word. The hospital medical records of the identified cases of intussusception (aged 0-14 years) were then retrospectively reviewed to collect demographic, clinical, laboratory and imaging findings, management, and outcome. During the study period, 57 cases were identified as confirmed IS (31 boys, median age 1.95 years, range 0.33-11 years). Abdominal ultrasound was the diagnostic imaging study in 93%. An underlying cause (secondary IS) could be identified in 19 (33.3%) cases: CD in 6, malignancy and Henoch-Schoenlein purpura, 5 each, and Meckel diverticulum in 3; the remaining 38 (66.6%) cases of IS were idiopathic (primary IS). The presence of hypoalbuminemia and abdominal distension were significantly associated with secondary IS as compared with primary IS ( P < 0.001, P = 0.006, respectively). All of the 6 cases of IS associated with CD resolved spontaneously, but 3 were recurrent. Secondary causes contributed to a large proportion of IS in our study cohort (33%) as compared with 5% to 10% in the literature. Celiac disease is an underrecognized cause of IS among children. A child with IS and hypoalbuminemia, anemia, or chronic diarrhea needs to be investigated for CD to avoid unnecessary surgery.

Significance of Histopathology of Appendectomy Specimens: Analysis From a Teaching Hospital of Pakistan.

Background Histopathology of a tissue specimen plays a crucial role in formulating the final diagnosis of any disease. It confirms whether the histopathological findings are in correspondence with the clinical diagnosis and thus suggests an optimal management plan. Standard surgical practices guide that every human tissue specimen must undergo postoperative tissue analysis unless indicated otherwise. Objective To determine the significance of histopathology in determining the final diagnosis of appendectomy specimens. Materials and methods This retrospectiveclinical studyconducted in May 2022 included 100 patients operated for appendectomy from January 1, 2021, to December 31, 2021, in the emergency room of the Department of General Surgery, Unit-III, Lahore General Hospital, Lahore. Data were retrieved from patients' records and the picture archiving and communication system (PACS). A Google Forms-based pro forma(Google, Mountain View, CA) was generated to include the demographic details, clinical manifestations, and histopathology reports of the patients. Descriptive analysis was completed using a Microsoft Excel spreadsheet (Microsoft Corporation, Redmond, WA). Results Fifty-two patients were females out of the total 100. The mean age at presentation was 23.02 ± 12.02 years. Of the samples, 54% were not sent for histopathology. Among the remaining ones, 27% of cases were proven to be acute appendicitis. Alvarado score was 7-10 in 50% of patients. Other lesions proven by histopathology were appendiceal phlegmon (4%), perforated appendix (4%), mucocele (1%), carcinoid tumor (1%), tuberculosis (1%), and adenocarcinoma (1%). Conclusions Histopathological analysis is the gold standard for the tissue diagnosis of a disease. The high percentage of the samples not sent for histopathology is alarmingsince the appendix is not only a site for inflammatory pathologies but for neoplastic lesions as well. This practice depicts that the incidence of non-inflammatory pathologies is being ignored by healthcare professionals and there is a dire need to emphasize the significance of acquiring histopathology reports for the specimens of appendectomy in all circumstances.

A novel rapid measurement method of cervical sagittal parameters based on the integrated inclinometer of a smartphone: a validity and reliability study

Objectives: A new method was introduced using a smartphone’s integrated inclinometer for rapid measurement of sagittal cervical parameters. The present study aims to compare the validity and reliability of the proposed method.Methods: We retrospectively reviewed 120 patients with cervical spondylosis treated at our hospital. The C0-2 Cobb angle, C2-7 Cobb angle, T1-slope (T1S), and neck tilt (NT) were selected as representative sagittal angles for this study. Two methods, the smartphone’s integrated inclinometer and picture archiving and communication system (PACS), were used to measure these four representative angles. Validity, reliability, and measurement times were recorded and compared.Results: The representative parameters (C0-2 Cobb angle, C2-7 Cobb angle, T1S, and NT), the ICC was 0.957 (0.939–0.970), 0.971 (0.958–0.979), 0.974 (0.963–0.982) and 0.949 (0.927–0.964) for validity respectively. For the aforementioned representative parameters, the ICC values were 0.972 (0.960–0.980), 0.979 (0.969–0.985), 0.972 (0.959–0.980), 0.942 (0.917–0.959) for intraobserver reliability respectively. For the representative parameters mentioned above, the ICC values were 0.947 (0.926–0.963), 0.964 (0.949–0.975), 0.956 (0.938-0.969), 0.916 (0.881–0.940) for interobserver reliability respectively. For the validity of the representative parameters mentioned above, the Bland-Altman plot displayed a mean difference of 0.2, 0.1, 0.1, and 0.4°with a 95% CI of 4.3, 4.5, 3.4, and 4.1°, respectively. The measurement by smartphone’s integrated inclinometer (46.31 ± 3.99 s) was significantly quicker than that by PACS (69.48 ± 3.25 s) according to independent-samples T test (p < 0.001).Conclusion: This novel smartphone measurement based on the integrated inclinometer is accurate and reliable for measuring cervical sagittal parameters rapidly and conveniently.

Energy consumption in MRI: Determinants and management options

BackgroundEnergy consumption awareness is a known concern, and radiology departments have energy-intensive consuming machines. The means of energy consumption management in MRI scanners have yet to be evaluated. PurposeTo measure the MRI energy consumption and to evaluate the means to reduce it. Materials and methodsData was retrieved for two MRI scanners through the hospital's automated energy consumption measurement software. After correlation with picture archiving and communication system (PACS) files, they were segmented by machine and mode (as follows: stand-by, idle and active) and analyzed. Active mode data for a specific brain MRI protocol have been isolated, and equivalent low energy consuming protocol was made. Both were performed on phantom and compared. Same protocol was performed on a phantom using 3.0T 16 and 32 head channels coils. Multiples sequences were acquired on phantom to evaluate power consumption. ResultsStand-by mode accounted for 60 % of machine time and 40 % of energy consumption, active mode accounted for 20 % machine time and 40 % energy consumption, idle mode for 20 % imachine time and 20 % consumption. DWI and TOF sequences were the most consuming in our brain-MRI protocol. The low energy consuming protocol allowed a saving of approximately 10 % of energy consumption, which amounted for 0.20€ for each examination. This difference was mainly due to an energy consumption reduction of the DWI sequence. There were no difference in consumption between a 3.0T 16 and 32 channels head coils. Sequence's active power and duration (especially considering slice thickness) have to be taken into account when trying to optimize energy consumption. ConclusionThere are two key factors to consider when trying to reduce MRI scan energy consumption. Stand-by mode energy consumption has to be taken into account when choosing an MRI scan, as it can't be changed further on. Active mode energy consumption is dependent of the MRI protocols used, and can be reduced with sequences adaptation, which must take into account sequence's active power and duration, on top of image quality.

Effectiveness of Archives Systems in Administrative Governance at the Maccini Sombala Village Head Office, Makassar City

Good records management plays an important role in organizational effectiveness, especially in administrative governance, namely supporting the availability of information effectively and efficiently, as planning material, policy-making material, control function, decision-making, evaluation, and accountability material. In reality, there are still many agencies that pay little attention to archive management which deviates from archival regulations. This research aims to determine the archival system in administrative governance, supporting factors, and inhibiting factors in the archival system in office administrative governance at the Maccini Sombala Village Head Office, Makassar City. This research is a qualitative descriptive research to explore all the information and information obtained in detail during the research process. The data collection techniques used were observation, interviews, and documentation. The data analysis techniques used are data collection, reduction, data presentation, and verification. The test results show that the archive system in administrative management at the Maccini Sombala Village Head Office, Makassar City, which includes dynamic archive management, has not been implemented effectively. This is due to the archive storage process being not optimal, namely using only one filing cabinet for all types of archives so that the archives can get scattered. The lack of attention from archival staff regarding archive supervision also means that archives are still piled up on office desks. Supporting factors for fast archive services, so that incoming archives can be processed immediately. The inhibiting factor for the archive system is limited facilities and infrastructure for managing and maintaining archives

The Archives Management System is Improved in the Administration Section of the DPRD Secretariat of South Sulawesi Province

All important documents, whether written or in the form of images, must be able to be found again. Therefore, the aim of this research is to find out the description of the Dynamic Records Management System in the Administration section of the DPRD Secretariat of South Sulawesi Province. This research is a qualitative descriptive study. The data collection techniques used are the observation method, interview method, and documentation method. The data analysis technique used in this research is the Miles and Huberman model of data analysis, namely data collection techniques, data reduction, data presentation, and conclusions. The number of informants in this study was 5 people, namely 1 head of the administrative sub-division and 4 administrative staff employees. The results of this research show that the archive management system is diminishing in the administrative section of the secretariat of the DPRD of South Sulawesi Province which includes the creation and receipt of dimanis archives in the form of making and recording them in agenda books, the use of domains archives includes archive lending services in the form of recording in agenda books, maintenance of dimanis archives includes storage and depreciation of archives, which includes the transfer and destruction of archives. This research can be used as reference material and knowledge about dynamic records management systems in more depth because different from previous research which used qualitative methods that focused on numbers and static, this research uses qualitative methods that focus on the process and meaning of the results. This research method focuses more on human elements, objects, and institutions, as well as the interaction relationships between these elements in an effort to understand an event, behavior, and phenomenon

Analysis of the Inactive Archive Storage System at PT Supra Nusa Kencana

Archive storage systems are divided into two, namely active and inactive archive storage systems. This research was conducted in order to find out how good archive management is assessed from the archive storage system, especially in the inactive archive storage system. This research was conducted using a descriptive qualitative approach, with data collection techniques in the form of observation, interviews, documentation and article searches, as well as using purposive sampling. The research location is Jalan Baung Raya, Kebagusan, Pasar Minggu, South Jakarta. The archive management system at PT Supra Nusa Kencana is running well, focusing management on four stages, namely structuring archives, borrowing archives, maintaining archives, and destroying archives. The inactive archive storage system is also working well.

Requirements specification, design, and evaluation of dental image exchange and management system with user-centered approach: A case study in Iran.

Systems existing in hospital or clinic settings offer services within the physical environment. Examples of such systems include picture archiving and communication systems, which provide remote services for patients. To develop a successful system, methods like software development life cycles (SDLCs) and design techniques, such as prototyping, are needed. This study aimed to specify requirements, design, and evaluation of dental image exchange and management system using a user-centered approach. This cross-sectional study was conducted in four phases, each corresponding to different stages of SDLCs. User-needs data were used to gathered by interviews and observations. A prototype was developed using object-oriented programming and presented to users for feedback. Finally, focus group was used to finalized the prototype into the desired system. User needs were identified and prioritized from the outset, with ease of use, security, and mobile apps being their most essential requirements. The prototype underwent several iterations of design and evaluation in focus group sessions until users were satisfied, and their feedback was incorporated. Eventually, the prototype was refined into the final system with users' consent. The study revealed that instant access to information, voluntary participation, user interface (UI) design, and usefulness were critical variables for users and should be integral to any system. Successful implementation of such a system requires careful consideration of end-users' needs and their application to the system. Moreover, integrating the system with electronic health records can further enhance the treatment process and the efficiency of medical staff. The voluntary perspective of users played a significant role in achieving an exemplary UI and overall satisfaction with the system. Developers and policymakers should consider these aspects in similar system development projects.

지역문화예술자원 아카이브를 위한 메타데이터 설계 연구

The purpose of this paper is to develop metadata area elements for the archive of local culture and arts resources. To this end, first, it was decided to divide the construction area of local culture and arts resources into management and unmanagement areas and to build a DB focusing on new data with high preservation value. Second, 400 villages with a high risk of extinction were selected by selecting population-reduced areas at the city, county, and district level nationwide, and the DB construction team entered data directly or established a participatory DB in connection with local cultural centers. Third, for this purpose, the technical elements were divided into basic, content, management, and additional areas to enter actual data and present the required and optional fields separately. Fourth, after establishing the system necessary for conducting actual online services, it was largely divided into basic areas, content areas, and functional areas, detailed areas were designated again, and a new metafield of local culture and arts resources was designed. It is hoped that the design types and methods for building new metadata presented in this study will contribute to the implementation of an integrated archive system of local culture and arts resources.

Case Report: Acute cerebral infarction as the initial manifestation of malignant tumors with trousseau syndrome in the elderly

Both acute cerebral infarction and malignant tumors are prevalent in the elderly. However, acute cerebral infarction is rarely present as the first clinical manifestation of malignant tumors. By searching the Picture Archiving and Communication System from 2010 to 2022 and the medical record database from 2003 to 2022, we found three cases of Trousseau syndrome, one male and two females with an average age of 69.3 ± 3.2 years, presenting with acute cerebral infarction. Two patients denied having hypertension, diabetes, and coronary heart disease. The average value of the D-dimer was 17.83 ± 12.39 mg/L (normal range, 0 to 0.55 mg/L). Magnetic resonance imaging (MRI) of the brain showed scattered and multiple small infarcts in the watershed area. The sites of infarction were not those that are typically caused by vascular atherosclerosis. One of the females was diagnosed with pancreatic cancer (T2N2M1, stage IV), the male was diagnosed with gastric cancer (T4N3M1, stage IV), and the other female was diagnosed with lung adenocarcinoma (rTxN3M1b, stage IV). The patient with pancreatic cancer underwent a comprehensive geriatric assessment, which revealed that she had a disability, dementia, malnutrition, short life expectancy, and high chemotherapy risk. Ultimately, the patient opted for conservative care, and 3 months after being discharged, she passed away from an acute upper gastrointestinal hemorrhage. Elderly patients with unexplained D-dimer elevation, multiple cerebral vascular lesions detected on MRI, and an absence of typical stroke risk factors need to be monitored for Trousseau syndrome. To screen for cancer, tumor markers and related imaging should be performed first. Trousseau syndrome is primarily treated with chemotherapy, radiotherapy and anticoagulant therapy. The risk of bleeding should be assessed carefully when using anticoagulant therapy in the elderly. Comprehensive geriatric assessment can assist in weighing the benefits and side effects of cancer treatment, making correct medical choices, and improving patients’ quality of life.

Prenatal Magnetic Resonance Imaging helps Discover Cerebellar Dysplasia or Malformations in Foetuses.

This study aimed to characterize and assess the diagnostic value of prenatal magnetic resonance (MR) imaging in detecting fetal cerebellar hypoplasia/dysplasia and developmental malformations. Reports of suspected intracranial abnormalities were retrospectively collected on ultrasound screening (US), and MR images of fetuses were reviewed at our institution over a 5-year period on picture archiving and communication system (PACS) servers. Two experienced radiologists recorded major abnormalities and coexisting abnormalities at the reading of the census. The results of the MRI were compared against the US in each case. For prenatal MR imaging, we enlisted a total of 121 patients (mean gestational week, 24.5 ± 4.7 weeks). This included 28 cases with normal findings of MR imaging, 62 cases with findings of cerebellar hypoplasia or dysplasia, and the remaining 31 cases with other abnormities findings. Cerebral malformations cases included agenesis of the corpus callosum, cerebral hemorrhage, hydrocephalus, holoprosencephaly, ventriculomegaly, and brainstem/gyri malformation. Cerebellar abnormalities included vermis absence, cerebellar tonsil hernia, Dandy-Walker malformation, Blake's pouch cysts, arachnoid cysts, and intracranial hemorrhage. Other systemic malformation cases included tethered cord syndromes (9 cases), cleft lip and palate (1 case), club foot (1 case), and cardiac malformation (1 case). In 12 cases (24.5%), compared to the US, MR imaging proved the value of confirming the diagnosis and/or even yielded more findings on abnormalities. Prenatal MR imaging can better visualize systemic malformations coexisting with cerebellar abnormalities. MR imaging, a complementary means to the US, can aid in prenatal counseling and treatment selection for term delivery.

Prevalence of Phantom Scanning in Cardiac Arrest and Trauma Resuscitations: The Scary Truth

Background: The prevalence of phantom scanning, or point of care ultrasound (POCUS) performed without saving images, has not been well studied. Phantom scanning can negatively affect patient care, reduce billed revenue, and can increase medicolegal liability. We sought to quantify and compare the prevalence of phantom scanning among emergency department (ED) cardiac arrests and trauma resuscitations. Methods: This was a single center, retrospective cohort study from July 1, 2019, to July 1, 2021, of all occurrences of POCUS examination documented on the resuscitation run sheet during cardiac arrest and trauma resuscitations. Two investigators reviewed the run sheets to screen for POCUS documentation. Instances where documentation was present were matched with saved images in the picture archiving and communication system. Instances where documentation was present but no images could be located were considered phantom scans. A two-tailed student’s t test was utilized to compare the phantom scanning rate between cardiac arrest and trauma resuscitations. Results: A total of 1,862 patients were included in the study period, with 329 cardiac arrests and 401 trauma resuscitations having run sheet documentation of POCUS performance. The phantom scanning rate in cardiac arrests and trauma resuscitations was 70.5% (232/329) and 86.5% (347/401), respectively (p &lt; 0.001). Conclusion: Phantom scanning is common in both cardiac arrests and trauma resuscitations in the ED at our institution, but is significantly higher in trauma resuscitations. Further research is needed to assess causes and develop potential solutions to reduce the high prevalence of phantom scanning.

Early Experience of Transarterial Therapy in Ruptured Hepatocellular Carcinoma

Introduction: Hepatocellular carcinoma (HCC) is the 3rd leading cause of cancer-related mortality. Ruptured HCC carries a high mortality if untreated. Peripherally located HCC has a higher risk of rupture. However, most of the ruptured HCCs on presentation are in an advanced stage and, hence are unresectable. Henceforth treatment options available are conservative and transcatheter embolization. Methods: Retrospectively, 8 patients with ruptured HCC who underwent trans arterial embolization were studied for hemostasis and 30-day mortality. Clinical history and laboratory data were obtained from the medical records of the patients, and radiological images were extracted from picture archiving and communication systems and studied. Results: The age ranged between 31 to 78 years and 7 were male. In patients presenting with sudden onset pain abdomen, ruptured HCC was suspected if there was a hemoperitoneum with or without extravasation of contrast adjacent to peripherally located HCC on CT angiography. Angiography revealed tumour blush with sentinel vessels in all. Two showed active contrast extravasation. Seven patients with relatively preserved liver function (Child A and B) attained both radiological and clinical hemostasis. One patient with Child C status died due to MODS on day 3 of embolisation. Three patients survived more than a year with additional liver-directed therapies. Two patients were lost to follow-up after discharge and two after six months. Conclusions: Transarterial embolization for ruptured HCC is an effective method of hemostasis and helps in achieving better survival by the additional benefit of tumor control and poor functional status of the liver predicts lower survival.

Artificial Intelligence–Aided Selection of Needle Pathways: Proof-of-Concept in Percutaneous Lung Biopsies

PurposeTo evaluate the concordance between lung biopsy puncture pathways determined by artificial intelligence (AI) and those determined by expert physicians. Materials and MethodsAn AI algorithm was created to choose optimal lung biopsy pathways based on segmented thoracic anatomy and emphysema in volumetric lung computed tomography (CT) scans combined with rules derived from the medical literature. The algorithm was validated using pathways generated from CT scans of randomly selected patients (n = 48) who had received percutaneous lung biopsies and had noncontrast CT scans of 1.25-mm thickness available in picture archiving and communication system (PACS) (n = 28, mean age, 68.4 years ± 9.2; 12 women, 16 men). The algorithm generated 5 potential pathways per scan, including the computer-selected best pathway and 4 random pathways (n = 140). Four experienced physicians rated each pathway on a 1–5 scale, where scores of 1–3 were considered safe and 4–5 were considered unsafe. Concordance between computer and physician ratings was assessed using Cohen’s κ. ResultsThe algorithm ratings were statistically equivalent to the physician ratings (safe vs unsafe: κ¯=0.73; ordinal scale: κ¯=0.62). The computer and physician ratings were identical in 57.9% (81/140) of cases and differed by a median of 0 points. All least-cost “best” pathways generated by the algorithm were considered safe by both computer and physicians (28/28) and were judged by physicians to be ideal or near ideal. ConclusionsAI-generated lung biopsy puncture paths were concordant with expert physician reviewers and considered safe. A prospective comparison between computer- and physician-selected puncture paths appears indicated in addition to expansion to other anatomic locations and procedures.

Suspected Cauda Equina Syndrome: Can the Presence of an Orthopaedic Doctor in the Emergency Department Reduce Waiting Times for MRI Scans and Inpatient Stays?

Introduction Cauda equina syndrome (CES) is a very rare but devastating surgical emergency that can lead to permanent bowel, bladder or sexual dysfunction and lower limb paralysis. Although it is a clinical syndrome, an MRI scan is a critical diagnostic investigation for these patients and should be done as soon as possible. Our hospital is a district general hospital with no spinal services on site. There is a protocol in place for the management of these patients locally with MRI scanning during daytime hours. However, if the patient presents after 8 pm, they are discussed with the tertiary spinal centre, which then advises if the patient requires transfer overnight for urgent scanning.Considering an MRI scan is a critical diagnostic step for these patients,we introduced a role for an orthopaedic doctor in the Emergency Department (ED) to assess all of these patientsbefore collecting data for the second cycle. The aim of this audit was to see the effect of having an orthopaedic doctor in the ED for the assessment of these patients and its impact on waiting times and admission rates. Methods A closed-loop audit cycle was done looking into all referrals to trauma and orthopaedics with acute back pain and suspected CES in a district general hospital with no spinal services on site. The first cycle was between September 30, 2020, and May 31, 2021, and included 93 patients in total. Following this, a role for an orthopaedic doctor in ED was introduced from December 1, 2021, to January 31, 2022, for assessment of these patients. Data was then collected retrospectively for all patients referred during this period (n=36). Data was extracted from all relevant clinical systems including electronic patient record (EPR), Patient Pass (Patient Pass Ltd, Greater Manchester, England), which is the system used to digitally communicate with regional spinal services, and PACS (picture archiving and communication systems). The data was collated on a Microsoft Excel spreadsheet (Microsoft Corporation, Redmond, Washinton, United States) and analysed. Results Data were collected for a total of 36 patients in the second cycle following the introduction of an orthopaedic doctor in the ED. The age of patients referred was 30-89 yearswith a mean age of 51; 44.4% were male (n=16) and 55.5% female (n=20). All the patients who were referred received their MRI scan and report within 24 hours of presentation to the ED. In the first cycle of the audit, the mean waiting time for an MRI scan had been 12.5 hours, which was reduced to eight hours following the introduction of an orthopaedic doctor in the ED during daytime hours. This was stratified further according to the time patients presented to the hospital. From 8 am to 4 pm, the mean waiting time for an MRI scan was 9.5 hours pre-intervention and 5.5 hours after. From 4 pm to 12 am, the mean waiting timewas 18 hours before and 13 hours after, and from 12 am to 8 am, the waiting time for scans improved from 8.5 hours to 6.5 hours. The number of patients discharged on the same day greatly improved from 29% (n=27) in the initial study to 58% (n=21). This decreased unnecessary inpatient stays from 71% (n=66) to 42% (n=15). Conclusion This study showed that an orthopaedic doctor in the ED for the acute assessment of patients referred with possible CES is an effective way of improving their management. This decreases waiting times for MRI scans and therefore allows the patient to be managed more efficiently.

Application value of CT examination of lymph node short diameter in evaluating cardia-left gastric lymph node metastasis in thoracic esophageal squamous cell carcinoma

Objective: To investigate the application value of computed tomography (CT) examination of lymph node short diameter in evaluating cardia-left gastric lymph node metastasis in thoracic esophageal squamous cell carcinoma (ESCC). Methods: A total of 477 patients with primary thoracic ESCC who underwent surgical treatment in the Affiliated Cancer Hospital of Zhengzhou University from January 2013 to December 2017 were collected. All of them underwent McKeown esophagectomy plus complete two-field or three-field lymph node dissection. Picture archiving and communication system were used to measure the largest cardia-left gastric lymph node short diameter in preoperative CT images. The postoperative pathological diagnosis results of cardia-left gastric lymph node were used as the gold standard. Receiver operating characteristic (ROC) curve was used to evaluate the efficacy of CT lymph node short diameter in detecting the metastasis of cardia-left gastric lymph node in thoracic ESCC, and determine the optimal cut-off value. Results: The median short diameter of the largest cardia-left gastric lymph node was 4.1 mm in 477 patients, and the largest cardia-left gastric lymph node short diameter was less than 3 mm in 155 cases (32.5%). Sixty-eight patients had cardia-left gastric lymph node metastases, of which 38 had paracardial node metastases and 41 had left gastric node metastases. The lymph node ratios of paracardial node and left gastric node were 4.0% (60/1 511) and 3.3% (62/1 887), respectively. ROC curve analysis showed that the area under the curve of CT lymph node short diameter for evaluating cardia-left gastric lymph node metastasis was 0.941 (95% CI: 0.904-0.977; P<0.05). The optimal cut-off value of CT examination of the cardia-left gastric lymph node short diameter was 6 mm, and the corresponding sensitivity, specificity and accuracy were 85.3%, 91.7%, and 90.8%, respectively. Conclusion: CT examination of lymph node short diameter can be a good evaluation of cardia-left gastric lymph node metastasis in thoracic ESCC, and the optimal cut-off value is 6 mm.

Morphometric Assessment of Alveolar Antral Artery Using Medical Computed Tomography.

This study aimed to investigate the prevalence, diameter, and position of the alveolar antral artery (AAA) in paranasal sinus computed tomography (CT) images and to correlate the location of the AAA with tooth position, the presence of teeth, and residual alveolar bone height (ABH). A retrospective study was conducted at the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, from November 2016 to October 2021. CT images of 100 maxillary sinuses from 50 patients managed for modified endoscopic sinus surgery and sinus lifting by a single surgeon were selected and obtained from the Infinitt picture archiving and communication system radiology system (Infinitt Healthcare Co., Seoul, Korea). The location of the AAA in the lateral wall of the maxillary sinus was evaluated in correlation with the area of the first and second molars (M1 and M2), the presence of teeth, and the residual ABH. In this study, we found that the intraosseous type is the most common type of AAA. Furthermore, the location and distance of the AAA are significantly affected by tooth position, an edentulous state in the case of the first molar, and residual ABH. Pre-evaluation of the diameter, position, and distance to the AAA using CT images is essential to help prevent hemorrhage. The existence and wide range of the AAA distances based on the tooth position, edentulous state, and residual ABH should be considered even if CT imaging cannot locate the AAA.

How to Improve the Work Efficiency of Teaching Secretaries Under the Full Credit System

Under the full credit system, the improvement of the work efficiency of teaching secretaries can be achieved from the following aspects: clarifying responsibilities and task division, optimizing work processes and communication mechanisms, enhancing information management capabilities, emphasizing work quality and innovation, establishing a comprehensive teaching archive management system, strengthening training and learning to improve one's own quality. Through the implementation of the above measures, teaching secretaries can better adapt to the teaching management work under the full credit system, improve work efficiency and quality.