口服甘露醇MSCTE诊断常见小肠肿瘤的临床研究

目的：探讨口服甘露醇MSCT小肠成像（MSTE）双期动态增强扫描在常见小肠肿瘤性病变诊断中的应用价值。方法：对69例经病理证实的小肠肿瘤患者行MSCTE双期动态增强扫描，分析胃肠道间质瘤（GIST）、淋巴瘤（NHL）、腺癌等三种常见小肠肿瘤的特征性影像表现。结果：24例GIST，21个病灶见明显的供血动脉，2例见病灶周围明显肿大的淋巴结。22例NHL，12例为浸润溃疡型，8例为动脉瘤样扩张型，4例为息肉样肿块型，15例见多发肿大的淋巴结，6例MPR重组图像显示供血动脉。9例腺癌中3例病变累及的肠管扩张，2例肠系膜根部见肿大的淋巴结，有3例MPR重组可显示供血动脉及引流静脉。MSCT总诊断符合率为95．6％（66／69）。结论：MSCTE在小肠肿瘤诊断中的价值较大，尤其是增强扫描，大大提高了病灶的检出率，对常见小肠肿瘤的诊断与鉴别诊断具有较高的临床应用价值。

Clinical Study of Multi-slice CT Enterography with Orally Administrated Isosmotic Mannitol in the Diagnosis of Small Bowel Tumors

Objective:To evaluate double-phase dynamic enhanced multi-slice CT enterography(MSCTE) with orally administered isosmotic mannitol in the assessment of common small bowel tumors.Methods:Sixty-nine patients with pathology proven small bowel tumors were examined by double-phase dynamic enhanced MSCTE.The CT characteristics of three kinds of common small bowel tumors(gastrointestinal stromal tumor ,lymphoma,adenocarcinoma) were analyzed.Results:Of the 24 cases with GIST,obvious feeding vessels were seen in 21 ...