Comparison of magnetic resonance cholangiopancreatography (MRCP) with ultrasonography (USG) and computed tomography (CT) in the evaluation of patients with obstructive jaundice. International Journal of Contemporary Medicine Surgery and Radiology. 2019;4(3):C69-C73. (USG), Computed Tomography (CT), Endoscopic Retrograde Cholangiopancreatography (ERCP) and Magnetic Resonance Cholangiopancreatography (MRCP). Percutaneous Transhepatic Cholangiography (PTC) is used for drainage procedures. Study aim to appraise the diagnostic accuracy of MRCP in detecting the cause and level of obstruction in patients suffering from with Obstructive Jaundice. Material and methods: A total no. of 25 patients suffering from obstructive jaundice of all age groups and either sex who were referred to Department of Radio-Diagnosis, Chettinad Hospitals and Research Institute were included in this study. Results: Of the twenty five patients, ten patients had benign causes of obstructive jaundice while fifteen patients had malignant causes of obstructive jaundice. MRCP had an accuracy of 97% in detecting the cause of obstructive jaundice. In diagnosing the site of obstruction MRCP had an accuracy of 100%. Conclusion: In the diagnosis of obstructive jaundice and to know the cause, site and extent of the lesion MRCP being a non invasive, non ionizing procedure seems to be a better choice. The only drawback of MRCP is the cost involved and the availability. The limitation of the study is the small sample size and that ERCP correlation for these patients was not done.

Trauma is one of the leading causes of death throughout the world. This is due to road traffic accidents, violent assault, wars, and natural calamities. Ultrasound and multi-detector CT scan helps in accurately diagnosing the various injuries, thus helping the clinician to plan for appropriate treatment. Hence, the aim of this study was to assess the diagnostic efficacy between CT and Ultrasound in abdominal trauma patients. Material and methods: The present study was a prospective study which was conducted in the Department of Radio-Diagnosis, Chettinad Hospitals and Research Institute. Total 142 patients with history of abdominal trauma were involved in the study. The selected patients were subjected to screening ultrasound abdomen and contrast enhanced CT abdomen. Results: The results showed that when Ultrasound was compared with CT, it was found that US showed 60% sensitivity 98% specificity, 91% accuracy, and had positive predictive value of 89% and negative predictive value of 98%. While on the other hand, CT had sensitivity of 96%, specificity of 100%, accuracy of 97%, and positive predictive value of 100% and negative predictive value of 79%. Conclusion: CT is the most sensitive and specific diagnostic modality in evaluation of abdominal, thus helping the surgeons plans the line of management accordingly.

No abstract

Introduction: Magnetic Resonance Spectroscopy is an advanced and non-invasive technique. Spectroscopic imaging or chemical shift imaging the data is converted as an image with the signal intensity representing the particular metabolites and its concentration. To assess the efficacy of Magnetic Resonance spectroscopy in characterizing the intracranial tumors, comparing single voxel and multi voxel 1H MR Spectroscopy. Material and Methods: MRI findings suggestive of intra-cranial tumors were selected for the study and both single voxel and multi voxel MRS were done. Results: Out of the total number of patients examined using single and multi voxel MRS, false peak values were more when using single voxel MR spectroscopy than when using multi voxel MR spectroscopy. Conclusions: The use of multi voxel spectroscopy gave accurate analysis of the region of interest (ROI) in cases which may involve a tumor associated with hemorrhage / calcification / necrosis. While single voxel MRS, the operation is faster and easier, when compared to that of multi voxel MRS.

Divya Y. Method of reducing the radiation dose to the paediatric age groups in computed tomography.