Resonance Imaging In Diagnosis Research Articles

The value of fetal magnetic resonance imaging in diagnosis of congenital anomalies of the fetal body: a systematic review and meta-analysis.

To undertake a systematic review to assess the accuracy of fetal MRI in diagnosis of non-CNS congenital anomalies of the fetal body in comparison with antenatal ultrasound when correlated to postnatal diagnosis. Searches were conducted from electronic databases, key journals and reference lists for eligible papers. Inclusion criteria was original research studies comparing the diagnostic results of antenatal ultrasound, fetal MRI and final postnatal diagnosis via imaging, surgery or post-mortem testing. Studies of CNS anomalies were excluded. Studies were assessed for risk of bias by two reviewers working independently and data was then extracted by a single reviewer. 12 studies were included with a total of 361 eligible patients who underwent USS and MRI and had a postnatal diagnosis. USS alone had a diagnostic accuracy of 60.6% whereas MRI had an improved diagnostic accuracy of 86.4%. The overall odds ratio was 0.86 (CI 0.202-1.519 and p-value < 0.01). Fetal MRI makes a significant contribution to accurate diagnosis of congenital abnormalities of the fetal body; especially in genito-urinary anomalies. More research is needed to improve the evidence base for the role of fetal MRI in diagnosis of congenital anomalies in other body systems.

Multiparametric magnetic resonance imaging in diagnosis of local prostate cancer recurrence after radiation therapy and radical prostatectomy: a unified PI-RR reporting system

Multiparametric magnetic resonance imaging (mpMRI) has an indisputable advantage in diagnosis of local recurrences of prostate cancer (PCa). Even though mpMRI has been shown to be very informative for detection of local PCa recurrences, high variability in its application and interpretation remains. Experts from the European Society for Urogenital Radiology (ESUR), the Imaging Committee of the European Association of Urology (ESUI), and several members of the PI-RADS committee developed a unified report system called Prostate Imaging Recurrence Reporting (PI-RR) to measure the risk of local recurrence of PCa in men who have had radical prostatectomy and radiation therapy and are being followed up. The principles of mpMRI that form the basis of PI-RR are well known and are stated in the PI-RADS v.2.1 guidelines, which have proven their diagnostic efficiency. The PI-RR system has the potential to become an important tool for improving communication between specialists involved in the process of PCa diagnosis and treatment, for optimizing treatment strategy in patients with local PCa recurrence, and for improving survival rates in patients with PCa after specialized anticancer treatment.

Role of Dynamic Ultrasound versus Magnetic Resonance Imaging in Diagnosis of Shoulder Impingement Syndrome

Role of Dynamic Ultrasound versus Magnetic Resonance Imaging in Diagnosis of Shoulder Impingement Syndrome

Diagnostic Ability of Nerve Conduction Study, Ultrasonography and Magnetic Resonance Imaging in Diagnosis of Carpel Tunnel Syndrome

Introduction: Current diagnostic criteria for Carpel Tunnel Syndrome (CTS) include a patient's medical history, physical exam results, and electrophysiological findings. The purpose of the study is to evaluate the diagnostic ability of nerve conduction study, ultrasonography and magnetic resonance imaging for the diagnosis of carpal tunnel syndrome with the use of clinical findings as the gold standard.&#x0D; Methodology: The study was conducted among 30 patients clinically diagnosed having CTS based on the criteria given by American Academy of Neurology and American Academy of Physical Medicine and Rehabilitation. All patients included in the study were underwent USG of affected wrist joint, CT scan as well MRI of the same.&#x0D; Results: Out of total 30 participants, 14 (46.7%) were found moderate severity followed by 11 (36.7%) were found mild severity. Only 5 (16.7%) were found severe carpel tunnel syndrome. Amongst all three investigation methods, nerve conduction study having the lowest sensitivity (83.33%). The sensitivity of the ultrasonography and MRI was 90% each.&#x0D; Conclusion: It is clear from this study that the sensitivity of the parameters utilized in NCS (maximum observed 83.33%) is lower than that of the median nerve cross-sectional area detected on USG (90%) and MRI (90%). The most sensitive, practical, and cost-effective metric of all those seen in the research turned out to be the median nerve cross sectional area evaluated at the wrist crease by USG.

Comparison of Computed Tomography-Based Artificial Intelligence Modeling and Magnetic Resonance Imaging in Diagnosis of Cholesteatoma.

In this study, we aimed to compare the success rates of computed tomography image-based artificial intelligence models and magnetic resonance imaging in the diagnosis of preoperative cholesteatoma. The files of 75 patients who underwent tympanomastoid surgery with the diagnosis of chronic otitis media between January 2010 and January 2021 in our clinic were reviewed retrospectively. The patients were classified into the chronic otitis group without cholesteatoma (n=34) and the chronic otitis group with cholesteatoma (n=41) according to the presence of cholesteatoma at surgery. A dataset was created from the preoperative computed tomography images of the patients. In this dataset, the success rates of artificial intelligence in the diagnosis of cholesteatoma were determined by using the most frequently used artificial intelligence models in the literature. In addition, preoperative MRI were evaluated and the success rates were compared. Among the artificial intelligence architectures used in the paper, the lowest result was obtained in MobileNetV2 with an accuracy of 83.30%, while the highest result was obtained in DenseNet201 with an accuracy of 90.99%. In our paper, the specificity of preoperative magnetic resonance imaging in the diagnosis of cholesteatoma was 88.23% and the sensitivity was 87.80%. In this study, we showed that artificial intelligence can be used with similar reliability to magnetic resonance imaging in the diagnosis of cholesteatoma. This is the first study that, to our knowledge, compares magnetic resonance imaging with artificial intelligence models for the purpose of identifying preoperative cholesteatomas.

Doppler Ultrasound versus Pelvic Magnetic Resonance Imaging in diagnosis of ovarian mass in teenagers: A Prospective study

Doppler Ultrasound versus Pelvic Magnetic Resonance Imaging in diagnosis of ovarian mass in teenagers: A Prospective study

Evaluation of Magnetic Resonance Imaging in Diagnosis of Brain Stroke in Khartoum State - Sudan

Stroke is one of the main causes of disability and death globally. Although Magnetic Resonance Imaging (MRI) has completely changed how stroke victims are diagnosed and treated, its application to the Sudanese population has not yet been investigated. This study aimed to assess the diagnostic accuracy of MRI in detecting brain infarctions and to evaluate the correlation between patient demographics and MRI results in Khartoum State, Sudan. A cross-sectional study was conducted at the Radiology department, Omdurman Military Hospital, Khartoum, Sudan, from April 2019 to February 2023. A total of 222 stroke patients were included in the study, with a slight male predominance (51.0%). Routine brain MRI was performed using 3 orthogonal planes and at least T1, T2, and FLAIR weighted images. The study found that all four MRI sequences (T1, T2, FLAIR, and DWI) have similar accuracy in measuring brain infarction sizes, with T2 sequence being slightly more sensitive. The most common occupation among stroke patients was soldier (19.8%) and the most affected age group was 63-77 years (34.2%). Additionally, the study revealed a higher incidence of right-sided infarctions (53.1%) compared to left-sided (47.0%). These findings provide insight into the accuracy of MRI in diagnosing brain infarction and highlight the importance of considering demographic factors in stroke evaluation.

Diffusion-weighted imaging versus non-contrast magnetic resonance imaging in the diagnosis of acute appendicitis during pregnancy

The aim of this study was to evaluate the diagnostic performance of diffusion-weighted imaging compared to non-contrast magnetic resonance imaging in the differential diagnosis of acute appendicitis in pregnant patients. A total of 72 pregnant patients with the suspicion of acute appendicitis who underwent magnetic resonance imaging combined with diffusion-weighted imaging examinations were enrolled in this retrospective study. Magnetic resonance imaging images (non-contrast and diffusion-weighted imaging sequences) were evaluated. Moreover, apparent diffusion coefficient ratios were estimated. The diagnostic performances of magnetic resonance imaging and diffusion-weighted imaging findings were statistically analyzed on the basis of surgical and follow-up results. Of 72 pregnant patients, 10 (14%) had acute appendicitis on magnetic resonance imaging and diffusion-weighted imaging. Among 10 patients with acute appendicitis, three (3/10) had perforation. diffusion-weighted imaging findings had higher sensitivity (90 versus 60%), negative predictive value (98.41 versus 93.94%), and accuracy (98.61 versus 94.44%) ratios compared to non-contrast magnetic resonance imaging in the diagnosis of acute appendicitis. There was one false-negative result on diffusion-weighted imaging. Diffusion restriction facilitated the detection of appendicitis. The apparent diffusion coefficient ratios were lower in acute appendicitis than in the normal appendix (0.70±0.19 versus 0.96±0.16) (p<0.05). With a shorter scan time and higher diagnostic accuracy, diffusion-weighted imaging can be useful for the early diagnosis of acute appendicitis and for planning appropriate management.

Hypoglycemic encephalopathy. The role of magnetic resonance imaging in diagnosis

Hypoglycemic encephalopathy. The role of magnetic resonance imaging in diagnosis

Role of multidetector computed tomography and magnetic resonance imaging in diagnosis of renal cell carcinoma

Role of multidetector computed tomography and magnetic resonance imaging in diagnosis of renal cell carcinoma

Fetal magnetic resonance imaging in the diagnosis of spinal cord neural tube defects: A prospective study.

ObjectiveThis study aimed to evaluate the value of fetal magnetic resonance imaging (MRI) in the prenatal diagnosis of spinal neural tube defects.MethodsFrom August 2018 to January 2021, 56 fetuses with suspected spinal cord neural tube defects were treated by prenatal ultrasound in the Neurosurgery Department of the First Medical Center of the People's Liberation Army General Hospital. Fetal MRI was performed within 72 h after ultrasound diagnosis. Forty singleton fetuses were selected. Magnetic resonance examination was performed within 1 month after birth, and the diagnostic coincidence rates of prenatal ultrasound and fetal magnetic resonance examination in the prenatal diagnosis of spinal cord neural tube defects were compared and analyzed using postnatal magnetic resonance examination as the standard.ResultsThe coincidence rates of prenatal ultrasound and fetal MRI for the prenatal diagnosis of spina bifida were 71.4% (20/28) and 39.2% (11/28), respectively, and the difference was statistically significant. The coincidence rates of prenatal ultrasound and fetal MRI in the diagnosis of intraspinal lipoma were 52.6% (10/19) and 73.7% (14/19), respectively, and the difference was statistically significant.ConclusionFetal MRI has an advantage over prenatal ultrasound in detecting intraspinal lipoma. Prenatal ultrasound has an advantage over fetal MRI in detecting spina bifida.

TETHERED CORD SYNDROME-CASE PRESENTATION

Introduction Tethered cord is a term for several different conditions. Common to all conditions of the tethered cord is that the movement of the spinal cord is limited at its base. During daily activities, the spinal cord can not move up and down inside the spinal canal, retreating against the restriction. Withdrawal of the spinal cord if minimal is unlikely to cause damage. In severe cases, the pressure can permanently injure the spinal cord. This functional disorder can be congenital (present at birth, the result of developmental malformations) or it can be acquired (arise later in life). Congenital attachment is usually detected in childhood, but not always. In some cases, congenital malformation is not detected, or properly diagnosed, until adulthood. Tethered Cord Syndrome is relatively rare in adults. Methods and materials We present a 2-year-old child, who has frequent urinary tract infections since infancy. Examined by a neurologist from our Clinic at 2 years of age with the presence of spasticity of the lower extremities and pes eqvinovarus on the right leg. Results Contrast-enhanced magnetic resonance imaging (MRI) diagnosis and consultation with a neurosurgeon are recommended. Conclusion The most common symptoms of this disease in children are lesions of the lower back, fatty tumors of the lower back, skin discoloration of the lower back, back pain, worsened by activity and relieved with rest, leg pain, especially in the back of legs , leg numbness, difficulty walking, deformities of the legs, scoliosis of the spine. If tethered cord sy is later diagnosed it can lead to loss of bladder and colon control. MRI is used for diagnosis. Early surgery is recommended in children to prevent further neurological deterioration. Keywords: Thetered cord, spinal cord, medulla spinalis

Diagnostic Accuracy of Contrast Enhanced Flair Magnetic Resonance Imaging in Diagnosis of Meningitis Taking Lumbar Puncture as Gold Standard

Objective: The objective of this article is to determine and compare the diagnostic accuracies of contrastenhanced FLAIR and T1W sequences of MRI brain in the detection of meningitis keeping lumbar puncture asgold standard.Study Design: Cross-sectional validation study.Place and Duration of Study: The study was carried out at Department of Diagnostic Radiology of POFHospital, Wah Cantt from 23 June 2019 to 22 March 2020.Materials and Methods: A total of 173 patients were included in the study by non-probability purposivesampling. Patients of age between 2-70 years, of either gender with suspected meningitis based on clinicalpresentation are included in our study. Patients in whom contrast enhanced MRI and lumbar puncture wascontraindicated, diagnosed patient of meningitis and non-consenting patients were excluded from this study.All patients received intravenous contrast medium gadolinium at rate of 0.2 ml/second. Post gadolinium T1Wand post gadolinium FLAIR images were acquired and evaluated by a consultant radiologist. Findings wererecorded on a prescribed performa. Patients were followed and results of lumbar puncture were collected fromlaboratory.Result: The mean age was 26.4±23.5 year ranging from 2 to 70 years. Out of 173 patients, 98 patients (56.6%)were male and 75 patients (43.4%) were female. Clinical presentations were as follows: poor feeding, irritabilityand lethargy 86 (49.7%), headache 137 (79.2%), nausea/vomiting 125 (72.3%), neck stiffness 89 (51.4%),altered level of consciousness 132 (76.3%), seizures 78 (45.1%) and local neurological deficit 45 (26%).Diagnostic accuracy of contrast enhanced MRI FLAIR in diagnosing meningitis taking lumbar puncture goldstandard showed sensitivity 91%, specificity 85%, PPV 87.6%, NPV 89.4% and diagnostic accuracy 88.4%.Diagnostic accuracy of contrast enhanced MRI T1W in the diagnosis of meningitis taking lumbar puncture goldstandard revealed sensitivity 60.2%, specificity 77.5%, PPV 75.6%, NPV 62.6% and diagnostic accuracy 68.2%.Conclusion: The sensitivity and specificity of post contrast FLAIR sequence is greater as compared to postcontrast T1W sequence to detect meningeal enhancement. Therefore, for all patients with suspicion ofmeningitis, post contrast FLAIR sequence should be added to MRI brain protocol as a routine sequence.How to cite this: Jawwad S, Gul N, Mehmood K, Iqbal B, Afzal K. Diagnostic Accuracy of Contrast Enhanced Flair Magnetic Resonance Imaging in Diagnosis of Meningitis Taking Lumbar Puncture as Gold Standard. Life and Science. 2022; 3(3): 120-126. doi: http://doi.org/10.37185/LnS.1.1.259

Multiparametric magnetic resonance imaging in diagnosis of long-term renal atrophy and fibrosis after ischemia reperfusion induced acute kidney injury in mice.

Tubular atrophy and fibrosis are pathological changes that determine the prognosis of kidney disease induced by acute kidney injury (AKI). We aimed to evaluate multiple magnetic resonance imaging (MRI) parameters, including pool size ratio (PSR) from quantitative magnetization transfer, relaxation rates, and measures from spin-lock imaging ( and ), for assessing the pathological changes associated with AKI-induced kidney disease. Eight-week-old male C57BL/6 J mice first underwent unilateral ischemia reperfusion injury (IRI) induced by reperfusion after 45 min of ischemia. They were imaged using a 7T MRI system 56 days after the injury. Paraffin tissue sections were stained using Masson trichrome and picrosirius red to identify histopathological changes such as tubular atrophy and fibrosis. Histology detected extensive tubular atrophy and moderate fibrosis in the cortex and outer stripe of the outer medulla (CR + OSOM) and more prominent fibrosis in the inner stripe of the outer medulla (ISOM) of IRI kidneys. In the CR + OSOM region, evident decreases in PSR, , , , and showed in IRI compared with contralateral kidneys, with PSR and exhibiting the most significant changes. In addition, the exchange parameter dropped by the largest degree among all the MRI parameters, while increased significantly. In the ISOM of IRI kidneys, PSR increased while kept decreasing. , , and all increased due to more severe fibrosis in this region. Among MRI measures, PSR and showed the highest detectability of renal changes no matter whether tubular atrophy or fibrosis dominated. and could be more specific to a single pathological event than other MRI measures because only increased and decreased consistently when either fibrosis or tubular atrophy dominated, and their correlations with fibrosis scores were higher than other MRI measures. Multiparametric MRI may enable a more comprehensive analysis of histopathological changes following AKI.

Clinical Utility of the Prenatal Ultrasound Score of the Placenta Combined with Magnetic Resonance Imaging in Diagnosis of Placenta Accreta during the Second and Third Trimester of Pregnancy.

Objective The aim is to explore the clinical utility of the prenatal ultrasound score of the placenta combined with magnetic resonance imaging (MRI) in diagnosis of placenta accreta during the second and third trimester of pregnancy. Materials and Methods A total of 108 pregnant women with suspected placenta accreta treated in Wuhan Hankou Hospital and Yantaishan Hospital of Yantai from January 2019 to January 2022 were retrospectively analyzed, the enrolled pregnant women received MRI examination because of suspected results of ultrasonic diagnosis, and by taking pathologic findings as the gold standard, the diagnostic efficacy of the ultrasound score, MRI, and their combination to placenta accreta during the second and third trimester of pregnancy was analyzed, and the diagnostic sensitivity, specificity, the positive predictive value, and the negative predictive value of these diagnostic modalities were evaluated. Results Among 108 patients with suspected placenta accreta, 75 with pathologically confirmed placenta accreta were included in the accreta group, and 33 without placenta accreta were included in the non-accreta group; no statistical between-group differences in the patients' age, gestational weeks, educational degree, and other general data were observed (P > 0.05), but the history of cesarean section, history of induced abortion, and incidence rate of placenta praevia were significantly higher in the accreta group than in the non-accreta group (P < 0.05); the ultrasound score was significantly higher in the accreta group than in the non-accreta group (P < 0.05); the incidence rates of signs of “placental heterogeneity” and “bulge of lower segment of the uterus and local thickening of the placenta” were obviously higher in the accreta group than in the non-accreta group (P < 0.05); according to the comparison with pathologic findings, the accuracy rate, sensitivity, specificity, the positive predictive value, and the negative predictive value of combined diagnosis were significantly higher than those of single application of the ultrasound score and MRI diagnosis (P < 0.05); and ROC analysis found that the area under the curve of combined diagnosis was obviously larger than that of the ultrasound score and MRI diagnosis (P < 0.05). Conclusion A combining prenatal ultrasound score of the placenta with MRI plays an important role in the diagnosis of placenta accreta during the second and third trimester of pregnancy, which can further improve the diagnostic accuracy rate of placenta accreta and provide significant guidance in preventing high-risk complications during the perinatal period.

Deep Learning-Based Magnetic Resonance Imaging in Diagnosis and Treatment of Intracranial Aneurysm.

This study was focused on the positioning of the intracranial aneurysm in the magnetic resonance imaging (MRI) images using the deep learning-based U-Net model, to realize the computer-aided diagnosis of the intracranial aneurysm. First, a network was established based on the three-dimensional (3D) U-Net model, and the collected image data were input into the network to realize the automatic location and segmentation of the aneurysm. The 3D convolutional neural network (CNN) network can extract the aneurysm blood vessels to locate and identify the areas of possible aneurysms. Next, 40 patients highly suspected of intracranial aneurysm were selected as research subjects, and they were subjected to magnetic resonance angiography (MRA) and digital subtraction angiography (DSA) examinations. The results showed that based on the U-Net algorithm model, 40 patients' hemangiomas were completely contained in the labeling bounding box, one patient's hemangioma was at the edge of the labeling bounding box, and 4 patients' hemangiomas were outside the labeling box. The final accuracy coefficient was 88.9%, and it was in good agreement with the doctor's manual labelling results. Under the 3D CNN network test, the sensitivity, specificity, and accuracy of DSA for intracranial aneurysm were 91.46%, 86.01%, and 90.2%, respectively; the sensitivity, specificity, and accuracy of MRA for intracranial aneurysm were 95.87%, 100%, and 97.19%, respectively. In conclusion, the 3D CNN can successfully realize the positioning of intracranial aneurysm in MRA images, providing a certain theoretical basis for subsequent imaging diagnosis of aneurysm.

Application of Scanning Magnetic Resonance Imaging in the Diagnosis of Prenatal Placental Implantation and Related Care.

In order to solve the problem of scanning magnetic resonance imaging in prenatal diagnosis, the application and research of placental implantation have been proposed. Placental implantation is a serious obstetric emergency, which refers to the abnormal attachment of placental villi caused by the dysplasia of decidual basal layer. A study from the United States showed that the incidence of placental implantation in pregnant women during delivery increased from 9.9/30000 to 11.6/20000 from 2006 to 2019, which increased the risk of prenatal or postpartum hemorrhage, hysterectomy, stillbirth, abdominal organ injury, and so on. Clinically, patients can show severe prenatal or postpartum hemorrhage, postpartum placental retention, uterine perforation, and secondary infection, which may seriously endanger the lives of pregnant mothers and fetuses. Placental implantation can also have no obvious symptoms before delivery, which leads to insufficient prenatal diagnosis. Gielchinsky retrospectively studied 410 patients with placental implantation and found that only 9 patients were detected by prenatal ultrasound or magnetic resonance imaging (MRI), and the detection rate was only 6.6%. It can be seen that if the accurate diagnosis of placental implantation can be made before prenatal or symptoms appear, clinical intervention treatment can be carried out in time to reduce the probability of hysterectomy and improve the examination means of patients' prerecovery. At present, studies at home and abroad suggest that it has good clinical application value and research prospect in the clinical diagnosis of placental implantation.

MP45-02 A PROSPECTIVE STUDY OF THE PROSTATE HEALTH INDEX DENSITY AND MULTIPARAMETRIC MAGNETIC RESONANCE IMAGING IN DIAGNOSING CLINICALLY SIGNIFICANT PROSTATE CANCER

You have accessJournal of UrologyCME1 May 2022MP45-02 A PROSPECTIVE STUDY OF THE PROSTATE HEALTH INDEX DENSITY AND MULTIPARAMETRIC MAGNETIC RESONANCE IMAGING IN DIAGNOSING CLINICALLY SIGNIFICANT PROSTATE CANCER Gang Song, and Yuanchong Chen Gang SongGang Song More articles by this author , and Yuanchong ChenYuanchong Chen More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002611.02AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: To evaluate the predictive performance of the Prostate Health Index (PHI) and PHI density (PHID), for clinically significant PCa (csPCa) in patients with a Prostate Imaging Reporting and Data System (PI-RADS) score ≤ 3. METHODS: Patients tested for total prostate-specific antigen (tPSA, ≤ 100 ng/mL), free PSA (fPSA), and p2PSA at our institution were prospectively enrolled. Possible predictive factors of csPCa were analyzed using the receiver operating characteristic (ROC) curve. Results were expressed as area under the curve (AUC) with 95% confidence intervals (CI). The cutoff values of PHI and PHID were determined. RESULTS: We enrolled 204 patients in this study. The prevalence of csPCa in the PI-RADS ≤ 3 subgroup (N = 81) was 19.75% (16/81). Age, tPSA, F/T, prostate volume, PSA density, PHI, PHID, and PI-RADS score were significantly associated with csPCa. PHID (AUC: 0.841 [95% CI: 0.736–0.947]) was the best predictor of csPCa. PHID > 0.956 was set as the threshold of suspicious csPCa with a sensitivity of 87.50% and a specificity of 72.31%, avoiding 95.92% of unnecessary biopsies but missing 12.50% csPCa. A threshold of PHI ≥ 52.83 showed the same sensitivity but a rather lower specificity of 64.62% that avoided 95.45% of unnecessary biopsies. CONCLUSIONS: PHI and PHID have the best predictive performance of csPCa in patients with PI-RADS score ≤3. A threshold value of PHID ≥ 0.956 may be used as the criterion for biopsy in these patients. Source of Funding: Beckman Coulter © 2022 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 207Issue Supplement 5May 2022Page: e762 Advertisement Copyright & Permissions© 2022 by American Urological Association Education and Research, Inc.MetricsAuthor Information Gang Song More articles by this author Yuanchong Chen More articles by this author Expand All Advertisement PDF DownloadLoading ...

ROLE OF MRI IN EVALUATION OF MUSKULOSKELETAL TUMOURS

INTRODUCTION: Magnetic resonance imaging is a useful technique in the detection, evaluation and staging of the musculoskeletal tumours. Its excellent soft tissue contrast and its capability to image in multiple planes provides signicant superiority over the other imaging techniques. AIMS AND OBJECTIVES: The main aim of study was to assess the role of magnetic resonance imaging in diagnosis, management and follow up of musculoskeletal tumours. MATERIALS AND METHODS: The study was conducted on 50 patients suspected of musculoskeletal tumors referred to the Department of Radiodiagnosis, at MMIMSR, Mullana. All the studies were conducted on PHILIPS MULTIVA 1.5T and PHILIPS ACHIEVA 1.5T MRI machine which included T1 W turbo spin echo, T2W turbo spin echo and STIR/PDFS sequences. RESULTS: The result of the study showed that tenderness was the most common presenting complain seen in 46/50 cases (92.0%) followed by pain in another 45/50 cases (90.0%). In the current study 22 cases (44%) were found to be involved by benign lesions and 28 cases (56%) were found to be involved by malignant lesions. Among the benign osseous tumors, osteoid osteoma constituted 5/13 (38.4%) of cases, followed by osteochondroma 2/13 (15.3%) of cases. Majority of the malignant osseous tumors were ill dened lytic lesions with a wide zone of transition, with cortical breech and aggressive periosteal reaction. CONCLUSION: The study concluded that MR imaging has become a premier imaging modality to detect musculoskeletal tumors because of its excellent soft tissue contrast, its sensitivity to bone marrow &amp; soft tissue oedema.

Magnetic resonance imaging in diagnosis of complications of kidney and ureteral injury in different periods of traumatic disease

To assess the possibility of magnetic resonance imaging in diagnosis of complications of kidney and ureteral injury in different periods of traumatic disease. There were 139 patients with kidney and ureteral injuries between 2015 and 2019. We clarified the MR-signs of renal complications in different periods of traumatic disease. We analyzed the effectiveness of MRI in identification of renal complications compared to ultrasound, excretory urography, computed tomography, intraoperative and follow-up data. High diagnostic accuracy of MRI for early and late manifestations of traumatic disease was demonstrated.