多层CT肠系膜血管成像的临床应用

The clinical application of mesenteric multi-slice spiral CT angiography

目的探讨多层CT肠系膜血管成像的临床应用价值。方法对17例不明原因腹痛患者行常规腹部动脉期和静脉期扫描后,分别进行肠系膜动脉和静脉成像,成像方法常规采用MIP和VR,需要时加MPR或CPR,描述肠系膜血管病变的表现。结果17例患者中8例显示肠系膜血管病变。1例肠系膜上动脉(SMA)和肠系膜下动脉(IMA)中断;3例SMA见局限性狭窄,其中1例并侧支血管形成;1例见SMA近端动脉瘤。3例SMV血栓形成,其中2例表现为SMV不显影,1例表现为SMV内充盈缺损。结论多层CT肠系膜血管成像是肠系膜血管病变的一种无创、准确、快捷的检测方法。

Objective To discuss the clinical application of mesenteric multi-slice spiral CT angiography （MMSCTA）. Methods The MMSCTA was performed by 16-slice spiral CT after the routine arterial and venous phase scanning in 17 cases with the unknown cause of abdominal pain. The three-dimensional vessel imagings were acquired with MIP, VR, MPR or CPR, to describe the abnormal findings of mesenteric vessels. Results The mesenteric vessels were showed normally in 8 of 17 cases. The superior mesenteric artery（SMA） and inferior mesenteric artery（IMA） concluded in one case; the narrow of the proximal SMA was found in 3 cases, one of which accompanied a tortuous collateral vessel; aneurysm of SMA main trunk was seen in one case; thrombosis of SMV was detected in 3 cases, in two of which the SMV was unopacification, in one of which the filling defect was seen in SMV. Conclusion MMSCTA is a noninvasive,accurate and quick diagnostic method of mesenteric vessels.