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  2. 醫學院
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Please use this identifier to cite or link to this item: https://scholars.lib.ntu.edu.tw/handle/123456789/623794
Title: The flow index provides a comprehensive assessment of erectile dysfunction by combining blood flow velocity and vascular diameter
Authors: Huang, Wei-Lun
Tung, Sheng-Yung
CHI-SHIN TSENG 
Wang, Tzung-Dau
WEN-JENG LEE 
Chen, Jyh-Horng
Su, Yann-Ron
Chang, Hong-Chiang
Chang, Yi-Kai
Keywords: COMPUTED TOMOGRAPHIC ANGIOGRAPHY; CORONARY-ARTERY-DISEASE; CARDIOVASCULAR-DISEASE; DUPLEX; DIAGNOSIS; IMPOTENCE; ULTRASONOGRAPHY; SILDENAFIL; INJECTION; RATS
Issue Date: 27-Sep-2022
Publisher: NATURE PORTFOLIO
Journal Volume: 12
Journal Issue: 1
Source: Scientific reports
Abstract: 
Dynamic duplex sonography (DUS) is not comprehensive in the evaluation of arteriogenic erectile dysfunction (ED). We introduced a new parameter, the flow index (FI), into the assessment of arteriogenic ED. A retrospective review of a prospective database was conducted. Patients undergoing DUS and pelvic computed tomography angiography for the evaluation of ED were included. The FI was calculated from peak systolic velocity (PSV) and the percentages of pelvic arterial (PLA) stenosis. Correlations between PSV, PLA stenosis, the FI, and erectile function were calculated. Eighty-three patients were included. Compared with PSV, the FI had better correlations with the erection hardness score (EHS) (rs = 0.405, P < 0.001 for FI; rs = 0.294, P = 0.007 for PSV). For EHS < 3, the areas under the ROC curve of FI and PSV were 0.759 and 0.700, respectively. In patients with normal DUS but EHS < 3, PLA stenosis was more severe (62.5% vs. 10.0%, P = 0.015), and the FI was lower (8.35 vs. 57.78, P = 0.006), while PSV was not different. The FI is better than PSV in the evaluation of arteriogenic ED. On the other hand, assessment of the pelvic arterial system should be included in the evaluation of ED.
URI: https://scholars.lib.ntu.edu.tw/handle/123456789/623794
ISSN: 2045-2322
DOI: 10.1038/s41598-022-19364-5
Appears in Collections:醫學系

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臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

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