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Colon diseases: MR evaluation using combined T2‐weighted single‐shot echo train spin‐echo and gadolinium‐enhanced spoiled gradient‐echo sequences
Author(s) -
Chung JaeJoon,
Semelka Richard C.,
Martin Diego R.,
Marcos Hani B.
Publication year - 2000
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/1522-2586(200008)12:2<297::aid-jmri12>3.0.co;2-q
Subject(s) - medicine , gadolinium , magnetic resonance imaging , radiology , t2 weighted , abscess , gradient echo , colonoscopy , adenocarcinoma , gastroenterology , colorectal cancer , cancer , materials science , metallurgy , surgery
This study demonstrates the appearance of large bowel diseases on magnetic resonance (MR) images using breath‐hold T2‐weighted half‐Fourier acquisition snapshot turbo spin‐echo (HASTE), breath‐hold T1‐weighted spoiled gradient‐echo (SGE), and breath‐hold gadolinium‐enhanced T1‐weighted SGE with and without fat‐suppression sequences. The study represents a collective experience using a generalized combined abdominal‐pelvic imaging protocol. Of 29 patients, 27 had surgical, endoscopic, microbiological, and/or histopathological correlation, and 2 had a diagnosis based on characteristic imaging findings. Fifteen patients had neoplastic disease including colon adenocarcinoma ( n = 11), rectosigmoid carcinoid ( n = 1), familial adenomatous polyposis ( n = 2), and cecal lipoma ( n = 1). Fourteen patients had non‐neoplastic disease including diverticulosis ( n = 6), ischemic colitis ( n = 2), pseudomembranous colitis ( n = 2), acute appendicitis with periappendiceal abscess ( n = 2), Mycobacterium avium intracellulare (MAI) colitis ( n = 1), and Crohn's proctocolitis ( n = 1). In all 15 patients with neoplastic diseases, MR imaging depicted the primary lesions and demonstrated local extent. Mass lesions were best shown on T2‐weighted HASTE and gadolinium‐enhanced fat‐suppressed SGE images. Of 14 patients with non‐neoplastic diseases, inflammatory changes were best shown on gadolinium‐enhanced fat‐suppressed T1‐weighted SGE images in all cases. MR imaging with fast scanning breath‐hold techniques and intravenous gadolinium enhancement provided good depiction and characterization of large bowel diseases. J. Magn. Reson. Imaging 2000;12:297–305. © 2000 Wiley‐Liss, Inc.