Heverhagen J T, Ishaque N, Zielke A, Bohrer T, Sitter H, Berthold L D, Klose K J
Department of Diagnostic Radiology, University Hospital, Philipps University, Baldingerstr., 35033 Marburg, Germany.
MAGMA. 2001 Mar;12(1):4-9. doi: 10.1007/BF02678267.
The purpose of this study was to evaluate MRI as a diagnostic tool in patients with suspected acute sigmoid diverticulitis. Furthermore, we sought to develop an optimal imaging protocol in these patients.
Eleven patients with suspected acute diverticulitis were included in the study. All patients were imaged in a 1.0 T clinical scanner using a body-array coil. Imaging sequences were single-shot TSE, HASTE-, STIR- and TrueFisp- sequence. All were obtained in the frontal plane. The diagnosis was verified by a single experienced investigator, using ultrasound, and overall clinicopathological outcome.
MRI enabled visualization of signs of an acute diverticulitis in all patients. However, the diagnosis of acute diverticulitis was obtained in 10 patients only. The mean imaging time was 17.5+/-5.5 min. STIR- and TrueFisp-sequences alone displayed all findings, e.g pericolonic exsudation, edema and segmental narrowing, whereas SSTSE and HASTE-sequences showed no additional information. Therefore, it appeared that the imaging protocol could be restricted to STIR- and TrueFisp-sequences.
MRI is feasible as a fast, accurate and investigator-independent diagnostic tool in patients with suspected acute diverticulitis. To prove its value in comparison to computed tomography or ultrasound, further studies are needed.
本研究旨在评估磁共振成像（MRI）作为疑似急性乙状结肠憩室炎患者诊断工具的价值。此外，我们试图为这些患者制定最佳的成像方案。
本研究纳入了11例疑似急性憩室炎的患者。所有患者均在1.0T临床扫描仪上使用体部阵列线圈进行成像。成像序列包括单次激发快速自旋回波（TSE）序列、半傅里叶采集单次激发快速自旋回波（HASTE）序列、短TI反转恢复（STIR）序列和稳态自由进动快速成像（TrueFisp）序列。所有序列均在冠状面获得。诊断由一名经验丰富的研究人员通过超声检查以及整体临床病理结果进行验证。
MRI能够显示所有患者急性憩室炎的征象。然而，仅10例患者被诊断为急性憩室炎。平均成像时间为17.5±5.5分钟。单独的STIR序列和TrueFisp序列显示了所有的表现，如结肠周围渗出、水肿和节段性狭窄，而单次激发快速自旋回波（SSTSE）序列和HASTE序列未显示额外信息。因此，似乎成像方案可局限于STIR序列和TrueFisp序列。
对于疑似急性憩室炎的患者，MRI作为一种快速、准确且不依赖研究人员的诊断工具是可行的。为了证明其与计算机断层扫描或超声相比的价值，还需要进一步的研究。
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