Department of Radiology, Hainan Qionghai Traditional Chinese Medicine Hospital, Qionghai 571400, China.
Curr Med Imaging. 2024;20(1):e15734056267653. doi: 10.2174/0115734056267653231129104404.
Magnetic resonance enteroclysis (MRE) has been widely applied to diagnose Crohn's disease (CD). Magnetic resonance (MR) at 3.0 T improves signal-to-noise ratio (SNR), shortens image acquisition time, and shows more advantages.
This study aimed to retrospectively analyze the diagnostic value of 3.0 T MR imaging for active CD.
48 CD patients hospitalized in our hospital from January 2021 to December 2022 were selected as the study subjects. These 48 CD patients underwent both double-balloon enteroscopy and 3.0 T MRE. All patients' arterial phase signal, venous phase signal, bowel wall, and bowel lumen of MRE were observed to identify whether they suffered from active CD. Based on the results of enteroscopy, the number of true positives, true negatives, false negatives, and false positives diagnosed by MRE were screened; next, the diagnostic accuracy, sensitivity, and specificity of MRE in assessing active CD were calculated.
Of the 48 patients, 39 were diagnosed with small bowel CD by MRE, which was not significantly different from the results of enteroscopy (P>0.05). According to MRE diagnostic results, the arterial phase predominantly presented high signal intensity, and the venous phase mainly presented low signal intensity or isointensity. Small bowel CD lesions were primarily characterized by bowel wall thickening, rare pneumatosis enhancement of the bowel wall, bowel lumen pneumatosis or dilatation, and rare strictures. Besides, MRE presented an accuracy of 93.75%, sensitivity of 97.37%, and specificity of 80.00% in diagnosing CD.
3.0 T MR imaging has diagnostic value for active CD and shows certain clinical application value.
.磁共振肠造影术（MRE）已广泛应用于克罗恩病（CD）的诊断。3.0T 磁共振（MR）提高了信噪比（SNR），缩短了图像采集时间，显示出更多的优势。
本研究旨在回顾性分析 3.0TMR 成像对活动期 CD 的诊断价值。
选取 2021 年 1 月至 2022 年 12 月我院收治的 48 例 CD 患者为研究对象。这 48 例 CD 患者均行双气囊小肠镜和 3.0T MRE 检查。观察 MRE 的动脉期信号、静脉期信号、肠壁及肠腔，判断是否患有活动期 CD。根据小肠镜检查结果，筛选出 MRE 诊断的真阳性、真阴性、假阴性和假阳性例数；然后计算 MRE 评估活动期 CD 的诊断准确性、敏感度和特异度。
48 例患者中，39 例经 MRE 诊断为小肠 CD，与小肠镜检查结果无显著差异（P>0.05）。根据 MRE 诊断结果，动脉期以高信号强度为主，静脉期以低信号强度或等信号强度为主。小肠 CD 病变主要表现为肠壁增厚，肠壁充气强化少见，肠腔充气或扩张，狭窄少见。此外，MRE 诊断 CD 的准确率为 93.75%，敏感度为 97.37%，特异度为 80.00%。
3.0TMR 成像对活动期 CD 具有诊断价值，具有一定的临床应用价值。
