Departamento Universitário de Anatomia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal.
Eur Radiol. 2011 May;21(5):1119-26. doi: 10.1007/s00330-010-2015-0. Epub 2010 Nov 30.
To evaluate the prostatic arterial supply with multidetector Angio CT and Digital Subtraction Angiography (DSA).
DSA was performed in 21 male patients (7 of these also underwent Pelvic Angio CT); a further 4 patients only underwent Angio CT. Prostatic arteries were classified according to their origin, direction, number of pedicles, termination and anastomoses with surrounding arteries in 50 pelvic sides.
The most frequent origin was the internal pudendal artery (n = 28; 56%) with the common gluteal-pudendal trunk the next commonest (n = 14; 28%). Less frequent origins were the obturator artery (n = 6; 12%) or the inferior gluteal artery (n = 2; 4%). Two separate vascular pedicles were found in 12 pelvic sides (24%). There were anastomoses with the termination of the internal pudendal artery in 24% of cases (n = 12), with the contra-lateral prostatic arteries in 6 cases (12%), and to the superior vesical artery in 4 cases (8%).
Defining prostatic artery origin and direction is paramount to allow selective catheterisation. Angio CT is very useful as a pre-intervention tool. The number of independent vascular pedicles and the presence of anastomoses with surrounding arteries should be taken into account when planning prostatic arterial embolisation.
通过多排 CT 血管造影（Angio CT）和数字减影血管造影（DSA）评估前列腺动脉供应。
21 名男性患者进行了 DSA 检查（其中 7 名患者还进行了盆腔 Angio CT 检查）；另外 4 名患者仅进行了 Angio CT 检查。在 50 侧骨盆中，根据起源、方向、蒂的数量、终止和与周围动脉吻合的情况对前列腺动脉进行分类。
最常见的起源是阴部内动脉（n = 28；56%），其次是臀股干（n = 14；28%）。较少见的起源是闭孔动脉（n = 6；12%）或臀下动脉（n = 2；4%）。12 侧骨盆中发现有 2 个独立的蒂（24%）。在 24%的病例中（n = 12）与阴部内动脉的终末吻合，在 6 例（12%）与对侧前列腺动脉吻合，在 4 例（8%）与膀胱上动脉吻合。
明确前列腺动脉的起源和方向对于选择性插管至关重要。Angio CT 作为介入前的工具非常有用。在计划前列腺动脉栓塞时，应考虑到独立蒂的数量和与周围动脉的吻合情况。
