A new method of measuring the stiffness of corpus cavernosum penis with ShearWave™ Elastography

Jj, Zhang; Xh, Qiao; Gao, Fang; F, Li; Bai, Ming; Hp, Zhang; Y, Liu; Lf, Du; Jf, Xing

doi:10.1259/bjr.20140671

Cited by 30 publications

(42 citation statements)

References 18 publications

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“…Interestingly, evidence exists that testosterone is necessary for appropriate functioning of the clitoris during sexual activity in women (Comeglio et al ., ). More recently, correlation between serum testosterone levels and elasticity scores was also reported (Zhang et al ., ). They emphasized that the serum testosterone level affects the generation and viability of smooth muscle cells in CB (Zhang et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…More recently, correlation between serum testosterone levels and elasticity scores was also reported (Zhang et al ., ). They emphasized that the serum testosterone level affects the generation and viability of smooth muscle cells in CB (Zhang et al ., ). They also highlighted that the cell viability and generation of smooth muscle decline with testosterone decrease, which can lead to cell atrophy and reduction in their number and consequently a change of stiffness of CB (Zhang et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Zhang et al . () evaluated stiffness of CB by ShearWave elastography in 40 healthy volunteers. Elasticity scores were measured in longitudinal and transverse sections with kiloPascal unit.…”

Section: Discussionmentioning

confidence: 99%

“…In urological practice, elastography has been used for evaluation of testicular masses, penile lesions, and suspicious foci of PC observed during transrectal ultrasonography (US) (Salomon et al ., ; Aigner et al ., ; Riversi et al ., ). In a current study, the stiffness of CB was evaluated by ShearWave elastography in 40 healthy volunteers (Zhang et al ., ). They found negative correlation between elasticity scores and age, and between elasticity scores and serum estradiol levels.…”

Section: Introductionmentioning

confidence: 97%

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Preliminary results of a new tool to evaluate cavernous body fibrosis following radical prostatectomy: penile elastography

Hamidi¹,

Altınbaş

Gökçe

et al. 2017

Andrology

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Development of cavernous tissue fibrosis due to neurovascular bundle damage during radical prostatectomy has been shown in many trials with invasive methods. In this study, we evaluated the changes in cavernous tissue elasticity by elastography in patients who underwent radical prostatectomy with or without neurovascular bundle preservation. Data from 65 patients underwent open retropubic radical prostatectomy between April 2014 and December 2015 was collected prospectively. Patients were grouped with respect to nerve-sparing status (non-, unilateral, and bilateral nerve sparing). International Index of Erectile Function scores, penile lengths, and elasticity scores were recorded at preoperative and postoperative follow-up visits (at 3rd and 6th months). The primary endpoint of the study was to evaluate the changes of the elasticity scores in all groups. Elasticity scores were measured with real-time elastography by a single experienced radiologist. Mean age, baseline total testosterone level, IIEF-5 score, elasticity scores of the cavernous body, and penile length were comparable in all groups. At postoperative 3rd and 6th months, statistically significant higher (in favor for fibrosis) mean cavernous body elasticity scores (p = 0.0001), lower mean IIEF-5 scores (p = 0.0001), and shorter penile lengths (p < 0.05) were observed in non-nerve-sparing group compared to other groups while there were no statistically significant differences between unilateral and bilateral nerve-sparing groups. Very strong negative correlation was detected between IIEF-5 and elasticity scores (p = 0.0001). According to our results, preservation of the neurovascular bundle in at least one side mediates lower elasticity scores, better International Index of Erectile Function scores, and penile lengths. Preliminary results of the penile elastography studies are promising for prediction of erectile functions and cavernous tissue fibrosis.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Preliminary results of a new tool to evaluate cavernous body fibrosis following radical prostatectomy: penile elastography

Hamidi¹,

Altınbaş

Gökçe

et al. 2017

Andrology

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“…Recently, other organs of the digestive system have also been included, such as the pancreas. 1,2 A study conducted in the year of 2015 evaluated the stiffness of the corpus cavernosum using EG in a quantitative way, and demonstrated that EG is a reliable noninvasive method 3 to measure the amount of smooth muscle cells in the corpus cavernosum. 4 One problem that affects men is erectile dysfunction (ED), a condition that affects 140 million men worldwide, with an estimated prevalence of 30 to 35% of the affected subjects between the ages of 18 and 40 years.…”

mentioning

confidence: 99%

Elastography in Erectile Dysfunction: A Follow-up Alternative

2018

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Quantifying Levator Ani Muscle Elasticity Under Normal and Prolapse Conditions by Shear Wave Elastography

Tang

Chen

Wen

et al. 2020

J of Ultrasound Medicine

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ObjectivesThe primary purpose of this study was to determine whether elasticity quantification of the levator ani muscle (LAM) using shear wave elastography (SWE) is different between women with and without pelvic organ prolapse (POP) and to determine whether LAM elasticity is associated with the prolapse stage or the dimensions of the levator hiatus. The secondary aim was to evaluate the intraobserver and interobserver reliability of LAM elasticity measurements using SWE.MethodsThe study participants included 20 women with normal pelvic support and 38 women with prolapse (stages I–III). The levator hiatus was imaged by transperineal 3‐dimensional ultrasound, and LAM elasticity and the elastic modulus were measured by SWE at rest and while performing the Valsalva maneuver.ResultsThe elastic modulus increased significantly from rest to during to maximal Valsalva maneuver (29.2 versus 54.1 kPa; P < .05) in all women. Levator ani muscle elasticity was significantly higher under prolapse conditions than under normal conditions at rest (27.9 versus 31 kPa; P < .001) but was lower during the maximal Valsalva maneuver than under normal conditions (57.3 versus 53.1 kPa; P < .05). Levator ani muscle elasticity at rest was associated with the hiatus area during the Valsalva maneuver (Spearman r = 0.608; P < .001) and distensibility of the levator hiatus (r = 0.594; P < .001), and the hiatus area decreased as the LAM elastic modulus increased during the maximal Valsalva maneuver (r = –0.414; P < .05). Moreover, LAM elasticity was associated with the severity of prolapse (P < .001).ConclusionsAs a noninvasive quantitative method, SWE, may be used to assess the biomechanical properties of the pelvic floor muscle, providing some research basis for a thorough understanding of POP and its treatment and prevention.

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A new method of measuring the stiffness of corpus cavernosum penis with ShearWave™ Elastography

Cited by 30 publications

References 18 publications

Preliminary results of a new tool to evaluate cavernous body fibrosis following radical prostatectomy: penile elastography

Preliminary results of a new tool to evaluate cavernous body fibrosis following radical prostatectomy: penile elastography

Elastography in Erectile Dysfunction: A Follow-up Alternative

Quantifying Levator Ani Muscle Elasticity Under Normal and Prolapse Conditions by Shear Wave Elastography

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