血管成像技术诊断内脏动脉瘤的临床价值

Clinical Evaluation of Vascular Imaging in the Diagnosis of Abdominal Visceral Artery Aneurysm

目的:探讨MSCT血管成像(MSCTA)及三维对比增强磁共振血管成像(3DDCEMRA)在腹腔内脏动脉瘤诊断和治疗中的价值。方法:回顾性分析分别经MSCTA及3DDCEMRA检查诊断的腹腔内脏动脉瘤38例患者的影像资料,采用容积重组(VR)、多平面重组(MPVR)、及最大密度投影(MIP)进行重组。结果:行MSCTA及3DMRA检查的38例患者中发现内脏动脉瘤42个,其中脾动脉瘤12个,肝动脉瘤6个,腹腔干动脉瘤8个,肠系膜上、下动脉瘤分别为6个和2个,肾动脉8个。VR、MIP、MPR可准确、清晰地显示瘤体位置、形态、范围、瘤壁、载瘤动脉和与周围血管的关系。结论:MSCTA和3DDCEMRA是简单、快速、无创、安全、可靠的血管成像技术,在诊断内脏动脉瘤方面,具有分辨力高,快速,准确,经济等优点,对腹腔内脏动脉瘤的检出具有较高的敏感度和特异度,提供的详尽信息可为尽快确定治疗方案提供依据,是诊断内脏动脉瘤的首选方法。

Objective：To investigate the value of multi-slice CT angiography（MSCTA）and 3-dimensional dynamic contrast enhanced MR angiography（3D DCE MRA）in the diagnosis and treatment of abdominal visceral artery aneurysms.Methods：38 patients with abdominal visceral artery aneurysm were diagnosed by MSCTA and 3D DCE MRA,techniques of artery reconstruction including volume rendering（VR）,multiple planar volume reformation（MPVR）and maxium intensity projection（MIP）were applied in all of the patients.Results：42 artery aneurysms were found in these 38 patients,including 12 splenic artery aneurysms,6 hepatic artery aneurysms,8 celiac trunk aneurysms,6 superior mesenteric artery aneurysms,2 inferior mesenteric artery aneurysm and 8 renal artery aneurysms.With VR,MIP and MPVR,the location,shape,extent,aneurysmal wall,parent artery and the relationship with the adjacent vessels were showed clearly and accurately.Conclusion：MSCTA and 3D DCE MRA are simple,fast,non-invasive techniques with high qualified images,which are feasible approaches with high sensitivity and specificity in the detection and diagnosis,provide detail information for treatment planning,and are the first choice for the diagnosis of abdominal visceral artery aneurysm.