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KMID : 0880420000010010043
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Korean Journal of Radiology
2000 Volume.1 No. 1 p.43 ~ p.50
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Usefulness of MR Imaging for Diseases of the Small Intestine: Comparison with CT
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Hyun Kwon Ha/Ji Hoon Kim
Hyun Kwon Ha/Min Jee Sohn/Byung Suck Shin/Young Suk Lee/Soo Yoon Chung/Pyo Nyun Kim/Moon Gyu Lee/Yong Ho Auh
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Abstract
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Objective: To evaluate the usefulness of MR imaging for diseases of the small intestine, emphasizing a comparison with CT.
Materials and Methods: Thirty-four patients who underwent both CT and MR imaging using FLASH 2D and HASTE sequences were analyzed. All patients had various small bowel diseases with variable association of peritoneal lesions. We compared the detectabilities of CT and MR imaging using different MR pulse sequences. The capability for analyzing the characteristics of small intestinal disease was also compared.
Results: MR imaging was nearly equal to CT for detecting intraluminal or peritoneal masses, lesions in the bowel and mesentery, and small bowel obstruction, but was definitely inferior for detecting omental lesions. The most successful MR imaging sequence was HASTE for demonstrating bowel wall thickening, coronal FLASH 2D for mesenteric lesions, and axial FLASH 2D for omental lesions. MR imaging yielded greater information than CT in six of 12 inflammatory bowel diseases, while it was equal to CT in six of seven neoplasms and inferior in five of seven mesenteric ischemia. In determining the primary causes of 15 intestinal obstructions, MR imaging was correct in 11 (73%) and CT in nine (60%) patients.
Conclusion: MR imaging can serve as an alternative diagnostic tool for patients with suspected inflammatory bowel disease, small intestinal neoplasm or obstruction.
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