Multi-slice Spiral CT Research Articles

Diagnostic value of multi-slice spiral computed tomography after adiponectin treatment of tracheal malignancies

Purpose: To determine the diagnostic value of multi-slice spiral computed tomography (CT) after adiponectin treatment of tracheal malignancies. 
 Methods: Sixty patients with tracheal malignancies admitted to Emergency General Hospital from February 2017 to February 2021 were assigned to the study group. After physical examination, 60 healthy subjects in the same period served as the control group. All patients were treated with adiponectin. The control group was subjected to serum tumor marker testing before and after treatment, while the study group received multi-slice spiral CT before and after adiponectin treatment. 
 Results: The 60 patients enrolled in the study group comprised 30 cases of squamous carcinoma, 22 cases of adenocarcinoma, and 8 cases of mucosa-associated lymphoma. Multi-slice spiral CT before treatment showed that 35 patients with tracheal malignant tumors had expansive lumen hyperplasia, while 25 patients with bulging tumors had saddle-like hyperplasia with irregular surfaces, uneven margins, and mean thickness of 5.96 ± 0.65 mm in the tracheal and bronchial walls adjacent to the luminal nodule. After treatment, the thickness of the tracheal and bronchial walls adjacent to the luminal nodule decreased to a mean value of 4.65 ± 0.48 mm. Prior to treatment, the mean enhancement value of contrast-enhanced CT was 18.98±1.23 Hu, and mean tumor diameter was 3.68 ± 0.23 cm. However, after treatment, the mean enhancement value increased to 25.98 ± 1.44 Hu, while mean tumor diameter decreased to 2.54 ± 0.20 cm in the study group. 
 Conclusion: Multi-slice spiral CT has promising diagnostic value for patients with tracheal malignancies after adiponectin treatment. Therefore, it can potentially be used in the diagnosis of patients with tracheal malignancies.

Comparison of multislice spiral CT and MRI in diagnosis of occult fracture of knee joint with meniscus and ligament injury

To investigate the diagnostic value of multislice spiral CT (MSCT) and MRI in occult fracture of knee joint with meniscus and ligament injury. From January 2020 to March 2021, 63 patients with knee occult fracture with meniscus and ligament injury, including 41 males and 22 females, aged from 21 to 67 years old, with an average of (44.35±8.77) years old, the course of disease ranged from 1 to 6 days, with an average of (4.64±1.75) days, the body mass index (BMI) was (19.85±2.78) kg/m2. MSCT and MRI data of 63 patients were collected and statistically analyzed to evaluage their diagnist value. The detection of MRI for occult knee fravtures with meniscus and ligament injury, joint cavity effusion, bone marrow edema, and articular surface injury were 100.00% (63/63), 95.24% (60/63), 42.86% (27/63) and 36.51% (23/63), respectively. The detection rates of MSCT were 49.21% (31/63), 41.27% (26/63), 0.00% (0/63) and 1.59% (1/63), respectively, significantly lwver than that of MRI (P<0.05). The diagnostic sensitivity, specificity and accuracy of MRI were significantly higher than those of MSCT(P<0.05). The sensitivity, specificity and accuracy of magnetic resonance imaging in the diagnosis of occult fracture of knee joint with meniscus and ligament injury are significantly better than that of MSCT. MRI has higher accuracy in the diagnosis of peripheral tissue diseases such as joint cavity, articular surface and bone marrow, and can reduce the risk of clinical misdiagnosis.

Multi-slice spiral computed tomography in differential diagnosis of gastric stromal tumors and benign gastric polyps, and gastric stromal tumor risk stratification assessment.

BACKGROUNDThe biological characteristics of gastric stromal tumors are complex, and their incidence has increased in recent years. Gastric stromal tumors (GST) have potential malignant tendencies, and the probability of transformation into malignant tumors is as high as 20%-30%.AIMTo investigate the value of multi-slice spiral computed tomography (MSCT) in the differential diagnosis of GST and benign gastric polyps, and GST risk stratification assessment.METHODSWe included 64 patients with GST (GST group) and 60 with benign gastric polyps (control group), confirmed by pathological examination after surgery in PLA General Hospital, from January 2016 to June 2021. The differences in the MSCT imaging characteristic parameters and enhanced CT values between the two groups before surgery were compared. According to the National Institutes of Health’s standard, GST is divided into low- and high-risk groups for MSCT imaging characteristic parameters and enhanced CT values.RESULTSThe incidences of extraluminal growth, blurred boundaries, and ulceration in the GST group were significantly higher than those in the control group (P < 0.05). The CT values and enhanced peak CT values in the arterial phase in the CST group were higher than those in the control group (P < 0.05). The MSCT differential diagnosis of GST and gastric polyp sensitivity, specificity, misdiagnosis rate, missed diagnosis rate, and areas under the curve (AUCs) were 73.44 %, 83.33%, 26.56%, 16.67%, 0.784, respectively. The receiver operating characteristic curves were plotted with the arterial CT value and enhanced peak CT value, with a statistical difference. The results showed that the sensitivity, specificity, misdiagnosis rate, missed diagnosis rate, and AUC value of arterial CT in the differential diagnosis of GST and gastric polyps were 80.18%, 62.20%, 19.82%, 37.80%, and 0.710, respectively. The sensitivity, specificity, misdiagnosis rate, missed diagnosis rate, and AUC value of the enhanced peak CT value in the differential diagnosis of GST and gastric polyps were 67.63%, 60.40%, 32.37%, 39.60%, and 0.710, respectively. The incidence of blurred lesion boundaries and ulceration in the high-risk group was significantly higher than that in the low-risk group (P < 0.05). The arterial phase and enhanced peak CT values in the high-risk group were significantly higher than those in the low-risk group (P < 0.05).CONCLUSIONPresurgical MSCT examination has important value in the differential diagnosis of GST and gastric benign polyps and can effectively evaluate the risk grade of GST patients.

The value of MSCT in evaluating the passability of bezoar by conservative treatment for bezoars-induced small bowel obstruction.

To explore the multi-slice spiral computed tomography (MSCT) imaging characteristics of patients with bezoars-induced small bowel obstruction (BI-SBO) to evaluate the risk of conservative treatment. This retrospective study included 72 patients with BI-SBO who underwent whole-abdominal MSCT scan within 1day before treatment. The patients were classified as the non-pass group and pass group depending on whether bezoar can pass after conservative treatment. The CT images were observed and measured by two radiologists. Statistical analysis was performed by using Student's t test, Pearson's chi-squared test, Fisher's exact test, Logistic linear regression, and receiver operating characteristic curve (ROC). The study population consisted of 72 patients with a mean age of 52.2 ± 16.2years (32 men and 40 women with an age range of 13-81years). There were statistical differences between the two groups in the bezoar appearance, maximum HU of bezoar, thickness of intestinal wall, mesenteric haziness, mesenteric fluid, and peritoneal fluid (P = 0.002, 0.024, 0.017, 0.006, 0.021, and 0.030). The appearance of bezoar and mesenteric haziness is independent risk factors affecting whether bezoar can be passed by the conservative treatment. Sensitivity (41.7%) was decreased, NPV (76.3%) was not significantly changed, specificity (93.8%) and PPV (76.9%) were improved when both parameters were met to assess failure of conservative treatment. The observation of important signs by MSCT and its reconstruction technology is of great clinical value in evaluating the passability of bezoar by conservative treatment, and which can provide radiographic basis for clinical treatment selection.

Image and Diagnosis Analysis of Multi-Slice Spiral CT and Chest X-Ray of Neonatal Pneumonia

Image and Diagnosis Analysis of Multi-Slice Spiral CT and Chest X-Ray of Neonatal Pneumonia

Pancreatoduodenectomy with the superior mesenteric vein resection without vascular reconstruction

The paper describes a clinical case of pancreaticoduodenectomy for pancreatic ductal adenocarcinoma with superior mesenteric vein resection without its reconstruction. This is the first case study of the kind found in Russian-language literature. In total, 16 such clinical observations have been described in the relevant world literature to date. A 74-year-old female patient was diagnosed with ductal adenocarcinoma of the pancreatic head 1.1 × 1.1 cm in size adjacent to the superior mesenteric vein. After four courses of ineffective neoadjuvant therapy, the tumor completely obliterated the superior mesenteric vein. The control multislice spiral computed tomography (MSCT) showed that the tumor was complete with the formation of a distinct collateral between the superior mesenteric and the inferior mesenteric veins. The patient underwent pancreatoduodenal resection with resection of the involved vein segment without vascular reconstruction. The histopathological diagnosis was pT1cN1M0R0. The patient was discharged on the next day after the operation.

Impact of a Structured Report Template on the Quality of Multislice Spiral Computed Tomography Scan Reports for Small Bowel Diseases: A Preliminary Study

Background: The application of multislice spiral computed tomography (MSCT) scan has improved the diagnosis of small bowel diseases (SBDs). Objectives: This study aimed to develop a structured report (SR) template for SBDs based on MSCT scans and to compare its value with free-text reports (FTRs) by radiologists with different levels of seniority in radiology. Patients and Methods: A total of 120 SBD cases were confirmed based on the clinical manifestations, surgery, colonoscopy, and pathology. An SR template for small bowel imaging was developed, and six radiologists were divided into inexperienced and experienced groups. Sixty cases with small intestinal MSCT data were available for FTRs and another 60 cases for SRs after training. The report accuracy, satisfaction, and completion time were compared between the two reporting methods. Results: The writing time of SRs was significantly shorter than that of FTRs. By using FTRs, the experienced group showed higher levels of sensitivity for all diseases (i.e., intestinal wall, intestinal peripheral artery, blood vessel, bone, and other abdominal organ diseases) (P &lt; 0.05). The experienced group showed a low misdiagnosis rate for all diseases (P &lt; 0.05), except for bone disease (P = 0.161). By using SRs, the experienced group only showed a low misdiagnosis rate for the intestinal wall disease (P &lt; 0.05). High sensitivity for the intestinal wall disease (P &lt; 0.05) and intestinal peripheral artery disease (P = 0.024), along with improved sensitivity for bone lesions (P &lt; 0.05), was reported in this group. In the inexperienced group, SRs improved sensitivity for all diseases (P &lt; 0.05), except for intestinal wall disease (P &gt; 0.05). The satisfaction scores for both inexperienced and experienced groups improved by using SRs (4 vs. 2.6 for the inexperienced group and 4.1 vs. 3.2 for the experienced group; P &lt; 0.05 for both). Conclusion: The SRs were superior to FTRs in terms of writing efficiency, accuracy, and satisfaction. They could improve the accuracy of inexperienced radiologists in diagnosis and help detect SBDs.

Combined diagnostic potential of multi-slice spiral CT and serum CRP levels in children with Mycoplasma pneumonia after azithromycin treatment

Purpose: To investigate the combined diagnostic value of multi-slice spiral computerized tomography (MSCT) and serum C-reactive protein (CRP) levels in children with mycoplasma pneumonia (MPP) after azithromycin treatment.Methods: Clinical data for 60 children with MPP who were treated in The First People's Hospital of Chenzhou, Chenzhou from February 2019 to February 2020, were retrospectively analyzed. All children were treated with azithromycin. Serum CRP levels were measured using immunoturbidimetric endpoint assay, while MSCT examination was done before and after treatment. This was a self-control clinical study in which the 60 patients served as their own controls. Thus, results obtained before treatment (control group, CG) were compared with those obtained after treatment (study group, EG). Within the same period, 60 healthy subjects were selected as the healthy group (HG), and were subjected to MSCT examination and serum CRP assay. The diagnostic results of CT were analyzed, and the responsiveness, selectivity, and positive and negative predictive values of the combination of MSCT and serum CRP levels were calculated.Results: Pre-treatment serum CRP level was higher in CG than in EG and HG, and CRP level was higher in EG than in HG (p &lt; 0.001). The MSCT imaging features of EG were significantly different from those of CG (p &lt; 0.05). The probabilities of bronchial wall thickening, hilar and mediastinal lymphadenopathy and pleural effusion were significantly higher in CG than in EG (p &lt; 0.05). The responsiveness, selectivity, and positive and negative predictive values of combination of MSCT and serum CRP in MPP children after azithromycin treatment were 70.0, 66.7, 67.7 and 69.0 %, respectively.Conclusion: The combination of MSCT examination and serum CRP levels resulted in high diagnostic efficiency, and it may be useful for monitoring MPP in children after azithromycin treatment. Therefore, the combined procedure may reduce the burden on families of MPP children by enhancing efficiency of diagnosis of the disease.

Diagnostic role of multislice spiral computed tomography combined with clinical manifestations and laboratory tests in acute appendicitis subtypes

The study aimed to investigate the diagnostic role of multislice spiral CT (MSCT) combined with clinical manifestations and laboratory tests in acute appendicitis subtypes. Patients diagnosed with acute appendicitis were...

Application of Endoscopic Ultrasound Combined with Multislice Spiral CT in Diagnosis and Treatment of Patients with Gastrointestinal Eminence Lesions.

Objective To evaluate the application of endoscopic ultrasound (EUS) combined with multislice spiral CT (MSCT) in the diagnosis and treatment of patients with gastric eminence lesions. Methods A total of 160 patients with gastric eminence lesions enrolled in our hospital from June 2018 to June 2021 were included and received EUS and MSCT. The results of the two examinations and the postoperative pathological results were compared. Results The common pathological types of gastric eminence lesions include polyps and stromal tumors, with the most common sites of lesions in the gastric antrum, followed by the fundus of the stomach and the gastric body. Gastric eminence lesions mostly originate from the mucosal layer and muscularis mucosa, accounting for 83.13% of the total. With pathological results as the gold standard, the detection rate of MSCT was 90.63%, and that of EUS was 78.13%. With the joint diagnosis as a reference, the receiver operating curve (ROC) revealed a higher diagnostic efficiency of MSCT and EUS. Conclusion The accuracy of MSCT in the diagnosis of gastric eminence lesions is significantly higher than that of EUS, both of which can offer useful guidance for the choice of endoscopic treatment methods. The combination of MSCT and EUS examination before endoscopic gastroscopy may provide a better treatment efficacy on gastric protruding lesions with high safety.

Application of Multislice Spiral CT and Three-Dimensional Image Reconstruction Technology in the Observation of Ankle Sports Injury under the Microscope.

In order to solve the problem of multislice spiral CT and three-dimensional image reconstruction technology in the observation of ankle sports injuries under the microscope, to meet the needs of the accuracy of the diagnosis of traumatic fractures, to make up for the shortcomings of the traditional treatment cycle, and to improve the recovery speed of patients. The subjects were inpatients in the Orthopedics and Traumatology Department of a hospital from January 2020 to January 2021.The ankle joint belongs to the flexion joint, which is formed by a dense joint at the lower end of the fibula, tibia, and talus. Osteoarthritis is the most common type of bone fracture, accounting for approximately 3.9% of the total skeletal system, and is most likely to occur in adolescents.

Diagnostic Value of Multislice Spiral Computed Tomography Combined with Serum AFP, TSGF, and GP73 Assay in the Diagnosis of Primary Liver Cancer.

Objective To explore the diagnostic value of multislice spiral computed tomography (MSCT) scan combined with serum alpha-fetoprotein (AFP), tumor-specific growth factor (TSGF), and Golgi protein73 (GP73) assays in the diagnosis of primary liver cancer (PLC). Methods Totally, 60 patients with PLC admitted to The Second Hospital of Dalian Medical University from January 2019 to January 2020 were included in group A, 60 patients with liver cirrhosis were included in group B, and 60 healthy subjects were included in group C. The serum AFP, TSGF, and GP73 levels were determined, and all participants received MSCT scanning. The diagnostic efficacy of MSCT, assays of serum AFP, TSGF, and GP73, and their combined detection was analyzed. Results Group A had the highest levels of AFP, TSGF, and GP73, followed by group B, and then group C. The sensitivity, specificity, positive predictive value, and negative predictive value of MSCT for PLC were 80.0%,91.7%, 82.8%, and 90.2%, respectively, while those of combined detection of MSCT plus serum AFP, TSGF, and GP73 for PLC were 100.0%, 93.3%, 88.2%, and 100.0%. The combined detection was associated with significantly a higher detection rate of PLC versus stand-alone detection. Conclusion MSCT plus serum AFP, TSGF, and GP73 has a higher detection rate versus stand-alone detection, which shows great potential in the diagnosis of PLC.

Study on Multi-slice Spiral CT and MRI in Patients with Pancreatic Cystic Lesions

Study on Multi-slice Spiral CT and MRI in Patients with Pancreatic Cystic Lesions

COVID19 INFECTION AND LIBMAN –SACKS ENDOCARDITIS IN PAST VALVE REPAIRED PATIENT

Objective: The patient was a 61-year-old woman who typically underwent mitral valve replacement and tricuspid valve repair in 2011. During these years, she underwent an annual checkup and experienced no particular problems. The potential patient contracted Covid 19 a month ago and underwent conservative treatment. The patient displayed no specific symptoms, no fever, and her Covid 19 disease was mild. In the accompanying echocardiography, we notice a lump on the atrial surface of the Tricuspid valve that we instantly suspect of local vegetation or heart mass. As a result, we admitted the patient to resume the examination. Design and method: Multi-slice (16) spiral thoracic CT scan: Sternotomy and MVR are seen. Cardiomegaly is evident. Patchy peripheral ground-glass opacities are seen bilaterally, suggesting covid-19 pneumonia; correlation with clinical and paraclinical data is recommended. Degenerative changes are perceived in the thoracic spine. There is no pleural effusion. Blood cultures and urinary trachea were requested to diagnose endocarditis, and she was also asked to have an esophageal echocardiogram. The antibiotic Meropenem 500 was started three times a day with vancomycin 1 gram twice a day for prophylaxis. After these examinations, the mass diagnosis was rejected as the image of vegetation on echocardiography did not found echogenicity similar to cardiac tissue and was denser. Consequently, we diagnosed vegetation. According to the negative culture results, and the patient had no symptoms (chills, heart pain), this patient’s diagnosis of an immunological reaction caused by Covid disease was made. Libman –sacks endocarditis is a type of sterile nonbacterial thrombotic endocarditis (NBTE) secondary to inflammation. Results: In this rare case, the vital point is that immunological reaction after covid can give rise to vegetation on the heart artificial valve and can be typically established with endocarditis. Covid can cause libman sac endocarditis, then we consider patients with heart disease maybe get limban sac or other forms of immunological reaction after covid virus. Conclusions: Concerning the explicit rejection of all the causes, the patient was diagnosed correctly with limb sac endocarditis. She underwent anticoagulant therapy and corticosteroid therapy accordingly and was recovered fully.

Value of MSCT plus MRI in the Detection of Colon Cancer.

Colon cancer is a common digestive system malignancy with nonspecific early symptoms, which necessitates better early detection methods. The present study was conducted to assess the accuracy and clinical value of multislice spiral CT (MSCT) plus magnetic resonance imaging (MRI) for colon cancer. Between January 2019 and July 2020, 100 patients with pathologically confirmed colon cancer treated in Wuxi People's Hospital were assessed for eligibility and recruited. All eligible patients received MRI and MSCT without any treatment prior to scanning. The accuracy of preoperative diagnosis and staging of colon cancer by MRI, MSCT, and MRI plus MSCT were analyzed using postoperative pathological results as the gold standard, and consistency analysis was performed. The receiver operating characteristic curve (ROC) was plotted, and the area under the curve (AUC) was obtained to analyze the preoperative diagnostic value. The accuracy of MRI, MSCT, and MRI plus MSCT was 98.00%, 96.00%, and 100% with good consistency (Kappa = 0.732, 0.703, and 0.756). The AUC of MRI, MSCT, and MRI plus MSCT was 0.889, 0.861, and 0.903, respectively. The preoperative diagnostic accuracy of MRI for colon cancer at T1, T2, T3, and T4 stages was 76.92%, 82.61%, 73.47%, and 86.67%, respectively, those of MSCT was 53.85%, 69.57%, 63.27%, and 40.00%, respectively, and those of MRI plus MSCT was 100.00%, 95.65%, 95.92%, and 86.67%, respectively. Consistency analysis yielded good consistency for the diagnosis of the T-staging of colon cancer (Kappa = 0.754, 0.731, 0.776). MSCT plus MRI yielded higher accuracy, specificity, and sensitivity in the detection of colon cancer versus the standalone MRI or MSCT, which demonstrated great potential in the early detection of colon cancer with a high clinical value.

Application Value of MRI Combined with MSCT in Diagnosis and Staging of Colon Carcinoma.

Objective To clarify the application value of magnetic resonance imaging (MRI) combined with multislice spiral computed tomography (MSCT) in the diagnosis and staging of colon carcinoma (CC). Methods A total of 103 patients with histopathologically diagnosed CC were enrolled. Patient clinical and imaging data were collected, and MRI and MSCT images were analyzed to assess the accuracy of MRI, MSCT, and their combination in diagnosing tumor (T) staging of CC. Results Among the 103 cases of histopathologically diagnosed CC, 26 cases (25.24) were in stage T1-2, 72 cases (69.90) were in stage T3, and 5 cases (4.85) were in stage T4. The accuracy of MRI in diagnosing stage T1-2, T3, and T4 was 80.77%, 88.89%, and 60.00%, respectively, with an average of 76.55%. The accuracy rates of MSCT in diagnosing T1-2, T3, and T4 stages were 73.08%, 90.27%, and 60.00%, respectively, with an average of 74.45%. The accuracy rates of MRI+MSCT in diagnosing T1-2, T3, and T4 were 88.46%, 95.83%, and 80.00%, respectively, with an average of 88.10%. Conclusions Compared with single use of MRI or MSCT, MRI+MSCT provides accurate imaging data with higher accuracy, which is more helpful for the T-staging evaluation of CC.

Diagnostic Value of Spiral CT and Magnetic Resonance Imaging Scanning in Gastric Cancer and Precancerous Lesions.

In order to explore the diagnostic value of spiral CT and magnetic resonance imaging scanning in gastric cancer and precancerous lesions, the author selected 56 gastric cancer patients treated in a medical center (group) as the experimental subjects, and all patients underwent MRI, multislice spiral CT scan, and enhanced CT scan two weeks before surgery; at the same time, the gastric cancer staging results of patients were diagnosed according to surgical pathology. All patients were examined under the condition of knowledge and performed breath-holding exercise before examination. The status, location, and extent of tumor lesions were evaluated. In comparison of T staging of gastric cancer patients with magnetic resonance scanning imaging and postoperative pathological examination results, among them, T staging of 3 patients did not match the results of pathological examination, the accuracy rates of T staging on magnetic resonance scanning imaging were T1 = 94.7%, T2 = 87.6%, T3 = 91.2%, and T4 = 94.7%, and the total accuracy was 92.1%. Comparison of helical CT scan imaging and postoperative pathological examination results is as follows. Among them, T staging of 8 patients did not match the results of pathological examination, 3 patients were ulcerative, 5 were protuberance, the accuracy rates of T staging in spiral CT scan imaging were T1 = 90.8%, T2 = 82.2%, T3 = 76.9%, and T4 = 87.6%, and the total accuracy was 84.5%. The total accuracy rate of imaging N staging was 77.5%, and the total accuracy rate of spiral CT scanning imaging N staging was 80.8%. The accuracy rates of M0 and M1 staging in magnetic resonance imaging were 100.0% and 96.5%, respectively, and the accuracy rates of M0 and M1 staging in spiral CT scan imaging were 96.5% and 96.5%, respectively. The accuracy rate of magnetic resonance imaging for the diagnosis of gastric cancer N staging was 77.4%, and the reason for the low accuracy rate was mainly because the enhancement effect was not obvious due to insufficient enhancement. The accuracy rate of spiral CT in diagnosing N staging of gastric cancer was 80.9%, which was mainly due to the small diameter of the middle celiac artery lymph nodes. Magnetic resonance and spiral CT scans have high value in the early diagnosis and staging of gastric cancer.

Study on the Value of Multi-slice Spiral CT in Diagnosing the Severity of Type 2 Diabetic Foot

Study on the Value of Multi-slice Spiral CT in Diagnosing the Severity of Type 2 Diabetic Foot

Multi-slice spiral computed tomography in diagnosing unstable pelvic fractures in elderly and effect of less invasive stabilization.

BACKGROUNDOlder people are more likely to experience pelvic fractures than younger people. Multi-slice spiral computed tomography (CT) uses three-dimensional (3D) reconstruction technology to generate 3D images that can clearly demonstrate the 3D space of fractures and detect fractures at a higher rate.AIMTo investigate the clinical value of multi-slice spiral CT 3D reconstruction in the diagnosis of unstable pelvic fractures in the elderly as well as the effect of less invasive stabilization.METHODSA total of 86 patients with unstable pelvic fractures treated between March 2016 and March 2019 underwent femoral supracondylar bone traction before surgery. Pelvic radiography and multi-row spiral CT were performed successively once the patient’s vital signs and hemodynamic indices were stable. Secondary processing of the original data was performed to obtain 3D reconstruction images and determine the vertical displacement of the pelvis. After basic or complete reduction, minimally invasive internal fixation using hollow lag screws was performed. The detection rates of fracture location and classification by X-ray and CT reconstruction were compared. Patients were divided into two groups according to the presence or absence of preoperative 3D reconstruction to compare postoperative reduction, wound healing time, fracture healing time, hospitalization time, visual analog scale (VAS) score, poor internal fixation, and functional recovery. RESULTSThe diagnostic coincidence rates of X-rays for pubic symphysis, ilium wing, sacroiliac periarticular, and sacral fractures were lower than those of CT reconstruction. The coincidence rate of CT reconstruction in the clinical classification of pelvic fractures was 100%, whereas 11 cases were misdiagnosed by X-ray; the total coincidence rate was 87.21%. The total excellent and good rates of postoperative reduction were significantly higher in the study group than in the control group (P < 0.05). The wound healing, fracture healing, and hospitalization times were significantly shorter in the study group than in the control group (P < 0.05). The VAS scores decreased in both groups postoperatively and were lower in the study group than in the control group (P < 0.05). The total incidence of poor postoperative internal fixation was significantly lower in the study group than in the control group (P < 0.05). The overall rate of postoperative functional recovery was significantly higher in the study group than in the control group (P < 0.05).CONCLUSIONMulti-slice spiral CT has high guiding significance for the diagnosis, classification, and treatment of unstable pelvic fractures in the elderly. Preoperative 3D reconstruction can effectively shorten the operation time and promote fracture healing, while minimally invasive internal fixation can effectively reduce pain and promote functional recovery of fracture sites, making it worthy of clinical application.

Accuracy evaluation of combining gastroscopy, multi-slice spiral CT, Her-2, and tumor markers in gastric cancer staging diagnosis

BackgroundTo evaluate the diagnostic accuracy of single gastroscopy, multi-slice spiral CT, HER-2 or tumor markers, and their combination in the diagnosis of gastric cancer.MethodsA total of 98 patients with gastric cancer were selected as the research subjects. All patients underwent preoperative gastroscopy, MSCT, and the expression levels of HER-2, CEA, CA199, CA724, and CA242 were detected. A control group of 98 normal adults was selected to compare the risk factors for gastric cancer and to analyze the data.ResultsThere was statistical significance in the expression of the 5 markers in tumor size (P < 0.05), but no statistical significance in other clinical data (P > 0.05). The tumor marker CEA in gastric mucosal tissue of patients with gastric cancer had the highest positive detection rate for gastric cancer, and the difference was statistically significant (P < 0.05) compared with gastroscopy, MSCT and other markers. The combined diagnosis had higher sensitivity, specificity and accuracy compared with the single diagnosis of gastric cancer staging, and the difference was statistically significant (P < 0.05). Compared with normal adults, patients with gastric cancer had statistically significant differences in diet, body mass index, and family genetic history (P < 0.05), while there was no statistically significant difference in whether they had type A blood (P > 0.05).ConclusionThe combined diagnosis of gastroscopy, MSCT, immunohistochemical marker Her-2, and tumor markers CEA, CA199, CA724, and CA242 can more accurately determine the clinical staging and lesion invasion depth of patients with gastric cancer and can significantly improve the sensitivity of diagnosis.