睾丸动脉起源变异的MSCTA表现

MSCT angiography performances of variation of origin of testicular artery

目的:探讨多层螺旋CT血管造影(MSCTA)在睾丸动脉(TA)起源变异的影像表现,提高对该血管变异的认识,为睾丸病变的治疗提供帮助。方法:回顾性分析行全腹部及盆腔多层螺旋CT增强扫描的正常成年男性250例,采用容积重组(VR)血管生长技术(AV)进行血管重建,观察TA异位开口的发生率、起始血管及部位。结果:250例TA中共223例双侧TA显影,显影率89.2%(223/250),19.3%(43/223)异位开口。一侧开口异常41例,其中6.3%(14/223)异位开口于肾主动脉或分支,5.4%(12/223)异位开口于肾副动脉或分支,4.0%(9/223)异位开口于肾动脉水平上方腹主动脉前外侧壁,2.7%(6/223)异位开口于肠系膜下动脉水平下方腹主动脉前外侧壁;1例双侧开口异常,均开口于肾主动脉或分支;另1例右侧双支动脉供血。结论:采用VR AV最能清楚、准确、直观地显示TA的起源变异情况。

Objective：To investigate the multi-slice CT angiography （MSCTA）appearances of the origin of testicular artery （TA）,in order to improve the understanding of that blood vessel anomaly,provides assistance for the treatment of testicular diseases.Methods：The whole abdominal and pelvic MSCTA of 250 healthy male adult subjects were analyzed ret-rospectively.Volume rendering （VR）and add vessel （AV）techniques were adopted for reconstruction of blood vessels,the incidence rate and location of TA origin were studied.Results：Of the 250 cases,bilateral TA could be assessed in 223 cases, with the displaying rate as 89.2% （223/250 cases）.The incidence rate of abnormal origin was 19.3% （43/223 cases）.41 cases had unilateral abnormal origin,with 6.3% （14/223 cases）had the abnormal opening located at renal artery or it＇s branches,5.4% （12/223 cases）opened at renal accessory arteries or their branches,4.0% （9/223 cases）opened at the an-terior-lateral wall of the abdominal aorta which was above the level of renal artery,and 2.7% （6/223 cases）opened at the anterior-lateral wall of the abdominal aorta below the level of inferior mesenteric artery.1 case had bilateral obnormal open-ings,located at renal arteries or their branches.Another 1 case had right side double arteries feeding.Conclusions：Abnormal TA origin can be clearly and precisely displayed by VR and AV techniques.