Volume 12, Issue 2 , July and August 2005, , Pages 31-35
Abstract
Background and Purpose: The diagnosis of obstructive jaundice entails the rapid examination of the patient for the causes and following a treatment protocol. Imaging is one of the most useful diagnostic methods, ultrasonography and CT scan being the most common. Despite the advantages of ultra sonography, ...
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Background and Purpose: The diagnosis of obstructive jaundice entails the rapid examination of the patient for the causes and following a treatment protocol. Imaging is one of the most useful diagnostic methods, ultrasonography and CT scan being the most common. Despite the advantages of ultra sonography, CT scanning has been popularized due to diagnostic limitations of the latter. Therefore, this study investigates the diagnostic value of CT scanning.
Methods and Materials: 23 patients with obstructive jaundice under went CT scan, the results of which were compared with postoperative biopsies and its sensitivity was calculated.
Results: 52.2% of the patients were mule and the rest female; their auerage age was 58:t19.4years. The most common causes reported in CT scan were Liver metastasis, pancreatic mass, Choledocal stone hydatic cyst, cholangiocarcinoma, gall bladder stone, Cirrhosis and stricture in distal choledoc. The CT sensitivity of all patients was 63.6%.lt was 66.7% for Choledocal stone, 71.4% for pancreatic mass and 100% for liver metastasis.
Conclusion: CT scan is an effective method of high sensitivity for diagnosing the level of obstruction in jaundice. Also, it is of high diagnostic accuracy for viewing the liver structure and if performed with IV contrast, it will be of valuable help in distinguishing between vascular structures from bile ducts.
Volume 12, Issue 1 , March and April 2005, , Pages 15-19
Abstract
Background and purpose: Brain tumors represent 10% of primary neoplasms of the central nervous systems. Great achievements have been made today using CT-Scan in diagnosis such tumors.
Methods and materials: This analytical prospective research was conducted in two hospitals in Mashad on 50 patients ...
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Background and purpose: Brain tumors represent 10% of primary neoplasms of the central nervous systems. Great achievements have been made today using CT-Scan in diagnosis such tumors.
Methods and materials: This analytical prospective research was conducted in two hospitals in Mashad on 50 patients with primary diagnosis of brain tumors. All Ct- scans were interpreted by the same radiologist. The interpretations were compared with postoperative pathological results.
Results: Mean age of the subjects was 41.03±18.8 years, ranging from 6 to 71. Tumors were most common in the 4th, 5th and 7th decade and least common in the first and second decades of life.
Tumor prevalence in biopsy results were GBM (30%), meningioma (18%), asterocytoma (12%), metastasis and hypophyse adenoma (each 6%). Chi-square analysis revealed no significant relationship between the type of tumors and sufferer's sex.
Conclusion: The Findings indicated that CT- Scan is of high diagnostic value in diagnosing large tumors and that they are consistent with Pathological results in 68% of the cases.