Longer Time to Peak Flow Predicts Better Arterial Flow Parameters on Penile Doppler Ultrasound

Hsiao, Wayland; Shrewsberry, Adam B.; Moses, Kelvin A.; Pham, Donald; Ritenour, Chad W.M.

doi:10.1016/j.urology.2009.05.102

Cited by 9 publications

(15 citation statements)

References 13 publications

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“…There could be differences in baseline characteristics for obtaining PSV between slow and fast responders. In one study, slow responders did seem to have significantly better arterial flow parameters, although penile dimensions, cavernosal artery diameter, erectile function domain scores, and subjective rigidity were similar [12].…”

Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 97%

“…Inner diameter of intracavernosal arteries (both left and right) and occasionally the peak systolic velocities (PSVs) in both arteries are then measured using the Doppler blood‐flow mode. Although recent studies claim a good predictive value of PSV measurement in this flaccid state , the universal consensus is to perform the study under pharmacologically induced erection [10–15]. For this, an ICI of a single or combination of vasoactive agents (e.g., PGE1, phentolamine, and papaverine) is administered [1–3].…”

Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 99%

“… The following parameters commonly used in vascular diagnostics for the blood‐flow quantification are useful in ED evaluation [5–16]: …”

Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 99%

“…Although recent studies claim a good predictive value of PSV measurement in this flaccid state, the universal consensus is to perform the study under pharmacologically induced erection [10][11][12][13][14][15]. For this, an ICI of a single or combination of vasoactive agents (e.g., PGE1, phentolamine, and papaverine) is administered [1][2][3].…”

Section: Evaluation Of Erectile Functionmentioning

confidence: 99%

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Standardization of Vascular Assessment of Erectile Dysfunction

Sikka

Hellstrom

Brock

et al. 2013

The Journal of Sexual Medicine

149

129

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Introduction In-office evaluation of erectile dysfunction by color duplex Doppler ultrasound (CDDU) may benefit the decision-making process in regard to choosing the most appropriate therapy. Unfortunately, there is no uniform standardization in performing CDDU resulting in high variability in data expression and interpretation when comparing results among various centers, especially when conducting multicenter trials. Establishing standard operating procedures (SOPs) is a major step that will help minimize such variability. Aim This SOP describes CDDU procedure with focus on establishing uniformity and normative parameters. Main Outcome Measure Measure intra-arterial diameter, peak systolic velocity, end-diastolic velocity, and resistive index for each cavernosal artery. Methods After initial discussion with the patient about his history and International Index of Erectile Function evaluation describe procedural steps to the patient. Perform the CDDU in a relaxed state, scanning the entire penis (in B-mode image) using a 7.5- to 12-MHz linear array ultrasound probe. An intracorporal injection of a single or combination of vasoactive agents (e.g., prostaglandin E1, phentolamine, and papaverine) is then administered and CDDU performed at various time points, preferably with audiovisual sexual stimulation (AVSS). Results Monitor penile erection response (tumescence and rigidity) near peak blood flow. Self-stimulation or AVSS leaving the patient alone in room or redosing may be considered to decrease any anxiety and help achieve a maximum rigid erection. Conclusion Considering the complexity and heterogeneity of CDDU evaluation, this communication will help in standardization and establish uniformity in such data interpretation. When indicated, invasive diagnostic testing involving (i) penile angiography and (ii) cavernosography/cavernosometry to establish veno-occlusive dysfunction may be recommended to facilitate further treatment options.

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Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 97%

Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 99%

“… The following parameters commonly used in vascular diagnostics for the blood‐flow quantification are useful in ED evaluation [5–16]: …”

Section: Duplex Ultrasound (U/s) Penile Blood‐flow Evaluationmentioning

confidence: 99%

Section: Evaluation Of Erectile Functionmentioning

confidence: 99%

See 2 more Smart Citations

Standardization of Vascular Assessment of Erectile Dysfunction

Sikka

Hellstrom

Brock

et al. 2013

The Journal of Sexual Medicine

149

129

View full text Add to dashboard Cite

show abstract

“…Using PDU with the injection of intracavernosal vasoactive agents during the flaccid state of the penis, arterial and venous systems can be evaluated through the examination of increase in the penile artery diameter, blood flow rate, systolic velocity, and end‐diastolic flow. In several studies, PDU has been demonstrated to be an efficient method to elucidate vascular pathologies [5,6].…”

Section: Introductionmentioning

confidence: 99%

Vasculogenic Erectile Dysfunction and Metabolic Syndrome

Koca

Çalışkan

Öztürk

et al. 2010

The Journal of Sexual Medicine

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Introduction Erectile dysfunction (ED), defined as the inability to achieve and/or maintain a penile erection sufficient for sexual intercourse, is a health problem affecting more than one-half of men between the age of 40 and 70 years. Aim The aim of the present study was to determine the potential factors affecting penile vascular flow and predictability of vascular flow in patients with ED. Methods Totally 163 male patients between 29 and 82 years of age who were admitted to our outpatient clinic with complaints of ED were included. After a detailed medical history was obtained, all patients were asked to complete the International Index of Erectile Function (IIEF) questionnaire. Blood samples were obtained for measurements of serum cholesterol, triglycerides, and fasting blood glucose (FBG), and the body mass index (BMI) was calculated. Main Outcome Measures Penile color Doppler ultrasonography (PDU) was performed to evaluate flow patterns, Mann–Whitney U-test and Spearman correlation analyses were used to assess the relationship of PDU findings with hypertension, obesity (BMI ≥ 25 kg/m2), FBG, and cholesterol levels measurements. Results The mean age, IIEF score, and BMI of the study population was 51.3 ± 12.1 years, 11.9 ± 6.1 and 28.5 ± 4.0 kg/m2, respectively. When the vascular pathologies detected with PDU and the presence of risk factors were compared, no significant correlation was determined between arterial insufficiency and metabolic syndrome (MS), whereas there was a significant correlation between veno-occlusive dysfunction and MS. Conclusion The prevalence of ED increases with advanced age and with the presence of a systemic disease. Basic evaluations may not always be sufficient for assessment of ED. In the presence of MS, the use of penile Doppler ultrasonography should be considered for the evaluation of penile vascular structures in ED patients.

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Step-by-Step Guide for Penile Doppler Ultrasound Examinations: Practical Tips

Miranda,

Carneiro

2024

Penile Color Duplex-Doppler Ultrasound in Erectile Dysfunction Diagnosis and Management

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Longer Time to Peak Flow Predicts Better Arterial Flow Parameters on Penile Doppler Ultrasound

Cited by 9 publications

References 13 publications

Standardization of Vascular Assessment of Erectile Dysfunction

Standardization of Vascular Assessment of Erectile Dysfunction

Vasculogenic Erectile Dysfunction and Metabolic Syndrome

Step-by-Step Guide for Penile Doppler Ultrasound Examinations: Practical Tips

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