Application of dual-energy CT angiography in diagnosis of arterial erectile dysfunction: new scanning technology, new scanning area.

To explore the value of dual-energy computed tomography (DE-CT) angiography in diagnosis of arteriogenic erectile dysfunction (ED) patients and feasibility of new scanning area that excludes the testis.

Ninety-three patients suspected of suffering arterial ED and 40 health volunteers underwent penile duplex Doppler ultrasound and DE-CT angiography (DE-CTA). The scanning range of DE-CTA covered whole arterial system of pelvis and testis was excluded. Two blinded investigators independently evaluated the arterial system that supplies the penis.

Finally, 1596 segments were evaluated and 470 segments were judged to be abnormal. The distribution was: 2 (0.4%) in common iliac artery, 7 (1.5%) in internal iliac artery, 82 (17.5%) in internal pudendal artery, 89 (18.9%) in penile artery, 120 (25.5%) in dorsal artery, and 170 (36.2%) in cavernosal artery. The specificity, sensitivity, positive predictive value, and negative predictive value of DE-CTA in diagnostic were 86.02%, 87.50%, 94.12%, and 72.92%. Besides, the new scan area allowed for effective evaluation of the arteries while excluding the testis.

DE-CTA can provide unbiased, safe evaluation of the vascular status of the penile bed in patients with ED.

The aging male : the official journal of the International Society for the Study of the Aging Male. 2022 Dec [Epub]

Ming Wang, Yutian Dai, Hui Jiang, Andrea Sansone, Emmanuele A Jannini, Xiansheng Zhang

Department of Urology, First affiliated hospital of Anhui medical university, Hefei, China., Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China., Department of Andrology, Peking University Third Hospital, Beijing, China., Chair of Endocrinology & Medical Sexology (ENDOSEX), Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.