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目的:探讨Corona Mortis(CMOR)动脉的发生率、起源、走行及位置，为骨盆前入路手术提供依据。方法:回顾性研究。收集2018年6月—2020年6月行CT血管造影检查的112例患者(224侧半骨盆)的影像资料，其中男68例、女44例，年龄28～92岁。将患者的CT血管造影影像资料进行三维重建，观察CMOR动脉的发生率、起源及走行情况，比较该动脉在男性与女性、左侧与右侧半骨盆发生率是否有差异，测量该动脉直径、与耻骨上支上缘最短距离以及与耻骨联合上缘中点距离，计算该动脉到耻骨联合所在矢状面的垂直距离与同侧髂前上棘到该矢状面垂直距离的比值。结果:224侧半骨盆中，共发现40条CMOR动脉，发生率17.86%(40/224)；男、女发生率分别为19.12%(26/136)、15.91%(14/88)，左、右侧发生率分别为16.07%(18/112)、19.64%(22/112)；差异均无统计学意义(χn 2＝0.375、0.487, n P值均>0.05)。CMOR动脉直径为(2.01±0.34)mm；该动脉与耻骨上支上缘最短距离为(3.41±1.22)mm；与耻骨联合上缘中点距离为(58.34±6.42)mm，男性(55.15±3.25)mm、女性(64.26±6.69)mm，性别间差异有统计学意义(n t＝4.643, n P<0.01)；该动脉到耻骨联合所在矢状面的垂直距离与同侧髂前上棘到该矢状垂直距离的比值为0.38±0.04，男性0.36±0.03、女性0.42±0.04，性别间差异有统计学意义(n t＝4.897, n P0.05). The diameter of the CMOR artery was (2.01±0.34) mm; the shortest distance between the CMOR artery and the upper edge of the superior pubic branch was (3.41±1.22) mm. The distance between the CMOR artery and the midpoint of superior pubic symphysis was (58.34±6.42) mm, which was (55.15±3.25)mm and (64.26±6.69) mm in males and females, respectively (n t=-4.643, n P<0.01). The ratio of the vertical distance from the artery to the sagittal plane of the pubic symphysis to that from the ipsilateral superior iliac spine to the sagittal plane was 0.38±0.04, which was 0.36±0.03 and 0.42±0.04 in male and female, respectively; the difference was statistically significant (n t=-4.897, n P<0.01).n Conclusions:The 3D reconstruction technology can clearly and accurately construct the 3D model of the CMOR artery and accurately measure its related anatomical parameters, which can help formulate a personalized surgical plan, guide the intraoperative approach, and reduce the risk of CMOR artery injury.