口服甘露醇低张小肠造影诊断小肠淋巴瘤的价值

目的 探讨多层螺旋CT小肠造影(MSCTE)双期动态增强扫描在小肠淋巴瘤中的应用价值.方法 对22例经病理证实的小肠淋巴瘤患者行MSCTE双期动态增强扫描,并在ADW4.2工作站进行后处理.分析小肠淋巴瘤的发病部位、形态、强化方式、淋巴结和供血血管的显示率等特征.结果 22例NHL小肠淋巴瘤中,十二指肠4例,空肠6例,回肠12例,位于末端回肠6例.门脉期CT值平均增高32 HU,12例表现为浸润溃疡型,动脉瘤样扩张型有8例,息肉样肿块型4例.15例肠系膜见多发的淋巴结肿大,MPR重建后6例见来源于肠系膜动脉的供血动脉.MscTE对小肠淋巴瘤的定位、定性与术后病理符合率分别为95.5%和91%.结论 MSCTE在小肠淋巴瘤的诊断中的应用价值较大,大大提高了病灶的检出率.

Clinical Study of Multislice Spiral CT Enterography in the Diagnosis of Small Bowel Lymphoma

Objective To evaluate the value of double-phase enhanced multislice spiral CT enterography(MSCTE) in the assessment of small bowel lymphoma. Methods Twenty-two patients with pathologically proven small bowel lymphoma were examined by double-phase dynamic enhanced MSCTE scan. The images were processed by using Advantage workstation 4. 2( ADW4. 2). The locations, shape, enhancement pattern .visualization of regional lymphadenopathy and feeding vessels of the lesions were analysed. Results In all 22 cases,the tumors located at duodenum in 4, jejunum in 6,ileum in 12 and terminal ileum in 6. The average CT values increased up to 32 HU in portal venous phase. The tumors appeared as infiltrative ulcer type in 12 cases, aneurysm like dilated in 8 cases and polypoid type in 4 cases. The feeding vessels of the lesions were seen in 6 cases, 15 cases had regional mesenteric lymphadenopathy. The multiple planar reformation images showed feeding vessels in 6 cases. The diagnostic accuracy in localization and qualitative diagnosis of the lesions by MSCTE were 95. 5% and 91% , respectively. Conclusion MSCTE is helpful in the diagnosis and differential diagnosis of lymphoma,which can improve the detective rate of the lesions.