Screening applications for MRI in the detection of upper abdominal disease: comparative study of non-contrast-enhanced single-shot MRI and contrast-enhanced helical CT |
| |
Authors: | T De Jaegere L Van Hoe W Van Steenbergen E Van Cutsem H Bosmans E Heindryckx P Loubeyre G Marchal |
| |
Institution: | (1) Department of Radiology, U. Z. Gasthuisberg, Herestraat 49, B-3000 Leuven, Belgium, BE |
| |
Abstract: | Purpose: To compare the value of ’push-button' singe-shot non-contrast-enhanced MRI and contrast-enhanced helical CT for detection
of upper abdominal disease. Methods: In 120 patients, images obtained with non contrast-enhanced single-shot MRI (T2: double echo HASTE, and T1: turbo FLASH)
and contrast-enhanced helical CT were compared. Lesions or abnormalities were divided in 8 anatomical categories (1: liver;
2: pancreatobiliary; 3: kidney/adrenal gland; 4: retroperitoneum; 5: vascular; 6: spleen; 7: gastrointestinal tract and peritoneum;
8: base of thorax) and classified as follows: 2: seen at MRI only; 1: better seen at MRI; 0: no difference; −1: better seen
at CT; −2: seen at CT only. Also recorded were the 'door-to-door’ examination times. Results: Of a total of 629 abnormalities, 594 were detected at MRI (94 %) and 536 at CT (85 %). CT offered better results in two categories
only: retroperitoneum (mean score: −0.68) and vascular (mean score −0.87). Mean examination times were 19 min for CT and 14.8
min for MRI. Conclusion: Unenhanced single-shot MRI is a valuable first step of a comprehensive upper abdominal MR exam and may even be the final
step in many patients.
Received: 3 April 1998; Revision received: 13 July 1998; Accepted: 18 August 1998 |
| |
Keywords: | : Magnetic resonance imaging Rapid imaging Magnetic resonance comparative studies Computed tomography helial technology |
本文献已被 SpringerLink 等数据库收录! |