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A New Method to Quantify Penile Erection Hardness: Real-time Ultrasonic Shear Wave Elastography by Hao Cheng; Zichang Niu; Fengyue Xin; Lin Yang; Litao Ruan is a Medicine article available to read on EtoBox.

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## Background An important indicator of penile erectile function is erection hardness (EH), which is currently evaluated by the semi-quantitative erectile hardness score (EHS). EH increases continuously during the course of an erection, so although it is statistically a continuous variable, the EHS is a grade variable. We propose a new method for real-time quantitative measurement of penile EH using ultrasonic shear wave elastography (SWE). ## Methods The study group comprised 40 patients with erectile dysfunction (ED) and 20 normal controls who all underwent real-time SWE to measure tissue stiffness (Young’s modulus, YM) of the penile corpus cavernosum and tunica albuginea during erection, at rest and at different EH grades induced by intracavernosal injection (ICI) of prostaglandin. The examiner gently placed the high frequency probe on the ventral penis and got the two-dimensional longitudinal US image of penis, then switched to SWE mode, the appropriate region of interest (ROI) was selected, then a 3–5 mm circle (“Q-box”) was automatically set to by machine to measure the SWE of the corpus cavernosum and tunica albuginea on the left side. ## Results In both the ED patients and

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Author

Hao Cheng; Zichang Niu; Fengyue Xin; Lin Yang; Litao Ruan

Publisher

AME Publishing Company

Published

2020

Language

EN

Field

Medicine (Health Sciences)