scholarly journals Diagnostic value of four-dimensional CT angiography in arterial erectile dysfunction using 320-detector row dynamic volume CT

2017 ◽  
Vol 37 (4) ◽  
Author(s):  
Cheng-Cheng Xu ◽  
Xin-Zhong Ruan ◽  
Yi-Fan Tang ◽  
Jiao-Hai Pan ◽  
Guo-Yao Wang ◽  
...  
Keyword(s):  
Erectile Dysfunction ◽  
Ct Angiography ◽  
Roc Curve ◽  
Corpus Cavernosum ◽  
Peak Systolic Velocity ◽  
Diagnostic Value ◽  
Diastolic Velocity ◽  
History Of ◽  
Volume Ct ◽  
Dynamic Volume Ct

The present study aims to evaluate the diagnostic value of four-dimensional CT angiography (4D-CTA) in the diagnosis of arterial erectile dysfunction (ED) using 320-detector row dynamic volume CT. Arterial ED patients attributed to arterial insufficiency were enrolled. To induce penile erection, an intracavernous injection (ICI) of corpus cavernosum with a vasoactive drug was administered. Patients were assigned into the erection hardness score (EHS) 1/2 group or EHS 3/4 group. Color duplex Doppler ultrasound (CDDU) was used to analyze blood flow spectrum. Each patient was examined using 4D-CTA. Receiver operating characteristic (ROC) curve was plotted to evaluate the diagnostic value of 4D-CTA in arterial ED. According to Irwin Goldstein, the EHS 3/4 group (n=38) had a shorter course of ED and low proportion with history of hypertension, hyperlipidemia, and diabetes than the EHS 1/2 group (n=35). The peak systolic velocity (PSV), end diastolic velocity (EDV), and resistant index (RI) in the EHS 3/4 group were lower than those of the EHS 1/2 group. 4D-CTA showed there were a total of 35 cases in the EHS 1/2 group (two cases missed) and 38 cases in the EHS 3/4 group (seven cases misdiagnosed). Using 4D-CTA to diagnose arterial ED, the area under the ROC curve yielded a value of 0.879, with a specificity of 93.9% and a sensitivity of 82.5%. These findings indicated that 4D-CTA using 320-detector row dynamic volume CT is a promising and reliable utility in diagnosing arterial ED.

scholarly journals Is the History of Erectile Dysfunction a Reliable Risk Factor for New Onset Acute Myocardial Infarction? A Systematic Review and Meta-Analysis

2020 ◽  
Vol 14 (3) ◽  
pp. 122-129
Author(s):  
Ahmed Adam ◽  
Jared McDowall ◽  
Sunday Joseph Aigbodion ◽  
Callistus Enyuma ◽  
Sean Buchanan ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Systematic Review ◽  
Acute Myocardial Infarction ◽  
Risk Factor ◽  
Erectile Dysfunction ◽  
Meta Analysis ◽  
Diagnostic Value ◽  
True Negative ◽  
History Of ◽  
New Onset

Acute myocardial infarction (AMI) occurs as a manifestation of coronary atherosclerotic disease. The occurrence of erectile dysfunction (ED) following AMI is well documented and this association and pathophysiology is often interrelated. Few studies have objectively assessed the diagnostic value of ED as a risk factor for AMI, in general. In this review, we aimed to better outline the diagnostic predictability of ED as a precursor for ‘first/new onset' AMI. This review was performed using selective search terms, in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. The Cochrane, Embase, PubMed, Scopus and Web of Science databases were searched (September 2018). Selected studies were further assessed for relevance and quality (Critical Appraisal Skills Program tool-Oxford). Four studies [573 participants; mean 143 (SD ± 76.3604) and median 141 participants] were eligible for analysis. Meta-analysis of the studies resulted in a pooled sensitivity of 51.36% (95% CI: 47.37-55.33%). For the single study which reported true negative and false positive cases, a specificity of 76.53% (95% CI: 68.57-83.00%) was calculated. The results of this systematic review and meta-analysis suggest that a history of ED should be used as a risk factor for new onset AMI.

scholarly journals Low-intensity shock wave therapy for erectile dysfunction and the influence of disease duration

2019 ◽  
Vol 90 (4) ◽  
pp. 276-282 ◽  
Author(s):  
Pedro Simoes De Oliveira ◽  
Tiago Ribeiro De Oliveira ◽  
Álvaro Nunes ◽  
Francisco Martins ◽  
Tomé Lopes
Keyword(s):  
Shock Wave ◽  
Erectile Dysfunction ◽  
Prospective Study ◽  
Disease Duration ◽  
Peak Systolic Velocity ◽  
Shock Wave Therapy ◽  
Treatment Results ◽  
Open Label ◽  
Low Intensity ◽  
Diastolic Velocity

Objective: Low-intensity shock-wave treatment (LiSWT) is a therapy for erectile dysfunction (ED) with good results reported in the literature. The aim of this study was to evaluate the results of LiSWT on patients treated for ED and the influence of ED duration in treatment outcomes. Material and methods: We performed an open-label single-arm prospective study of patients treated with LiSWT for ED. Patients were assessed with the IIEF-5 at baseline and at six weeks and three months after LiSWT, and with penile dynamic Doppler ultrasound before treatment and six weeks after. Patients were divided into two groups accordingly to ED evolution time: ≤ 24 months and > 24 months. Results: Twenty-five patients were enrolled, 13 had ED ≤ 24 months and 12 > 24 months. Median baseline IIEF-5 was 14, at 6 weeks post LiSWT was 16 (p < 0.001) and at 3 months post LiSWT was 18 (p < 0.001). Mean baseline peak systolic velocity (PSV) was 29.3 ± 13.0 cm/s, after LiSWT was 35.9 ± 15.2 cm/s (p 0.001). Mean baseline end-diastolic velocity (EDV) was 2.6 ± 4.8 cm/s and after LiSWT was 1.3 ± 4.3 cm/s (p 0.015). No statistical significative difference was identified between the two groups. Conclusions: LiSWT is a safe, harmless and repeatable treatment tool for ED with good outcomes reported. Our results suggest that length of disease duration doesn´t negatively influences treatment results.

scholarly journals The Effect of Testosterone Replacement Therapy on Penile Hemodynamics in Hypogonadal Men With Erectile Dysfunction, Having Veno-Occlusive Dysfunction

2018 ◽  
Vol 12 (3) ◽  
pp. 634-638 ◽  
Author(s):  
Ozan Efesoy ◽  
Selahittin Çayan ◽  
Erdem Akbay
Keyword(s):  
Erectile Dysfunction ◽  
Replacement Therapy ◽  
Erectile Function ◽  
Peak Systolic Velocity ◽  
Resistive Index ◽  
Testosterone Replacement ◽  
Testosterone Replacement Therapy ◽  
Testosterone Levels ◽  
Diastolic Velocity ◽  
Physiological Serum

Hypogonadism may cause veno-occlusive dysfunction (VOD) by structural and biochemical alterations in the cavernosal tissue. The aim of the study was to investigate the effect of testosterone replacement therapy (TRT) on penile hemodynamics in hypogonadal men with erectile dysfunction and VOD. The study included 32 hypogonadal men with erectile dysfunction, having VOD. All patients underwent penile color Doppler ultrasonography (PCDU) at the beginning and 6 months after the initial evaluation. Erectile function was evaluated with the 5-item version of the International Index of Erectile Function (IIEF-5); hypogonadism was evaluated by testosterone measurement and the Aging Male Symptoms (AMS) scale. All patients received transdermal testosterone 50 mg/day for 6 months. Clinical and radiological findings were compared before and 6 months after the TRT. The mean age was 58.81 ± 4.56 (52–69) years. Mean total testosterone levels were 181.06 ± 39.84 ng/dL and 509.00 ± 105.57 ng/dL before and after the therapy, respectively ( p < .001). While all patients had physiological serum testosterone levels (>320 ng/dL) after the therapy, three cases (9.3%) had no clinical improvement of hypogonadism symptoms. Cavernosal artery peak systolic velocity (PSV) and resistive index (RI) significantly increased, and end diastolic velocity (EDV) significantly decreased after TRT. VOD no longer existed in 21 (65.6%) of the cases. This study demonstrated that TRT may restore penile hemodynamics in hypogonadal men with VOD.

scholarly journals Application and Value of Dynamic Volume CT Multiparameter Imaging in the Diagnosis of Traumatic High-Flow Penile Abnormal Erection

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Chengcheng Xu ◽  
Xinzhong Ruan ◽  
Yuning Pan ◽  
Qiuli Huang
Keyword(s):  
Flow Rate ◽  
Peak Flow ◽  
Corpus Cavernosum ◽  
Resistance Index ◽  
Peak Flow Rate ◽  
Hemodynamic State ◽  
Significant Difference ◽  
The Difference ◽  
Volume Ct ◽  
Dynamic Volume Ct

Objective. To explore the clinical application of dynamic volume CT multiparameter imaging in the observation of penile hemodynamics in patients with abnormal vascular erections. Methods. 90 patients with suspected vascular abnormal erections treated in our hospital from January 2016 to January 2020 were included in the study, and 40 patients with psychologically abnormal erections were selected for the control. The corpus cavernosum injection vasoactive drug test (ICI) and dynamic volume CT and Doppler ultrasound were used to test the hemodynamics of the corpus cavernosum of all selected patients and to analyze the changes of penile length, circumference, systolic peak flow rate, diastolic peak flow rate, and blood flow resistance index in different types of penile erection disorder patients before and after ICI test. Results. Among the 90 patients with suspected vascular abnormal erection, 34 patients had arterial abnormal erection, 25 patients had venous abnormal erection, and 31 patients had mixed vascular abnormal erection. In patients with arterial abnormal erection and mixed vascular abnormal erection, penile cavernous body diameter, PSV, and abnormal erection V are smaller than those in patients with venous abnormal erection and psychological abnormal erection, while arterial abnormal erection and psychological abnormal erection are obviously higher in RI than venous abnormal erection and mixed vascular abnormal erection, and the difference is statistically significant ( P < 0.05 ). Before the ICI test, there was no significant difference in the penis circumference and length between the four groups of patients with arterial abnormal erection, venous abnormal erection, mixed vascular abnormal erection, and psychological abnormal erection ( P > 0.05 ); after the ICI test, patients with arterial abnormal erections had significantly shorter penis perimeter and penis length than those with venous abnormal erections, mixed vascular abnormal erections, and psychological abnormal erections ( P < 0.05 ). Conclusion. Dynamic volume CT can clearly reflect the penile hemodynamic state of patients with vascular abnormal erections, provide a powerful diagnostic basis for accurately and effectively determining the classification of vascular abnormal erections, and be worthy of popularization and clinical use.

Application of Superb Microvascular Imaging in the Diagnosis of Vascular Erectile Dysfunction

2021 ◽  
Vol 11 (8) ◽  
pp. 2184-2188
Author(s):  
Jun Wu ◽  
Fan Jiang ◽  
Xiaofeng Lan
Keyword(s):  
Blood Flow ◽  
Erectile Dysfunction ◽  
Color Doppler ◽  
Peak Systolic Velocity ◽  
Hemodynamic Parameters ◽  
Color Doppler Flow Imaging ◽  
Diastolic Velocity ◽  
Superb Microvascular Imaging ◽  
The Difference ◽  
Microvascular Imaging

To compare the difference between superb microvascular imaging (SMI) and color doppler flow imaging (CDFI) on vascular grading and blood flow display rate of the penile cavernous artery of vascular erectile dysfunction (ED), and to evaluate the length of time to obtain blood flow spectrum. 68 patients with ED were preformed for the examination of SMI and CDFI. The difference between the two techniques on vascular grading and blood flow display rate were compared. Hemodynamic parameters, namely peak systolic velocity (PSV), end diastolic velocity (EDV), and resistant index (RI) and the length of time obtained blood flow spectrum were compared. SMI was more sensitive to assess vascular grading and blood flow display rate than CDFI (P < 0.05). Hemodynamic parameters (PSV, EDV, and RI) measured by SMI and CDFI were well correlated (r = 0.981, P < 0.001; r = 0.879, P < 0.001; r = 0.937, P < 0.001). The duration of time necessary obtained the spectrums of grade 3 and grade 4 blood flow was shorter than that of grade 1 and grade 2, and SMI was comparatively shorter than CDFI (P < 0.05). In conclusion, SMI detected the blood flow of the penile cavernous artery better and maked the examination time shorter than CDFI, which can be considered as a more effective technique to diagnose vascular ED.

scholarly journals Steroid-Responsive Large Vessel Vasculitis: Application of Whole-Brain 320-Detector Row Dynamic Volume CT Angiography and Perfusion

2009 ◽  
Vol 30 (7) ◽  
pp. 1409-1411 ◽  
Author(s):  
N. Yahyavi-Firouz-Abadi ◽  
B.L. Wynn ◽  
F.J. Rybicki ◽  
M.L. Steigner ◽  
A.Z. Hussain ◽  
...  
Keyword(s):  
Ct Angiography ◽  
Large Vessel Vasculitis ◽  
Large Vessel ◽  
Whole Brain ◽  
Volume Ct ◽  
Dynamic Volume Ct

Frequency and anatomic distribution of arterial obstructions in patients with vasculogenic erectile dysfunction not responding to intracavernous prostaglandin

VASA ◽  
2021 ◽  
pp. 1-6
Author(s):  
Vignes Mohan ◽  
Giuseppe Sangiorgi ◽  
Jonas Knöchel ◽  
Hak-Hong Keo ◽  
Jan Schönhofen ◽  
...  
Keyword(s):  
Erectile Dysfunction ◽  
Peak Systolic Velocity ◽  
Duplex Ultrasound ◽  
Arterial Disease ◽  
Duplex Sonography ◽  
Intracavernosal Injection ◽  
Specific Patient ◽  
Published Evidence ◽  
Diastolic Velocity ◽  
Penile Artery

Summary: Background: The extent of arterial disease in patients with erectile dysfunction (ED) non-responsive to intracavernosal injection of Alprostadil is of importance for therapeutic options. However, published evidence, in particular angiographically validated is scarce. Here we investigated arterial lesion patterns in this specific patient cohort by selective angiography. Patients and methods: A cohort of 239 patients received a clinical and duplex-sonographic workup for ED of suspected vascular origin. Duplex ultrasound of the cavernosal arteries was performed after intracavernosal injection of 10 μg Alprostadil. Consequently, standardized workup included grading of the erectile and determination of peak systolic velocity (PSV) and end-diastolic velocity (EDV) in both cavernosal arteries. PSV-values below 30 cm/sec indicated reduced arterial flow, whereas EDV-values above 15 cm/sec indicated a venous leak of the pudendal veins. All patients with suspected arterial ED based on duplex sonography underwent contrast-enhanced computed tomography. Endovascular therapy was carried out in ED patients not responsive or with significant side effects to PDE-5-inhibitors or Alprostadil by selective angiographic depiction of erection-related arteries. Results: 54 patients with a mean age of 61.2 (±9.8) years underwent angioplasty of erectionr elated arteries. Out of these 48/54 (89%) patients presented with an erection considered insufficient for penetration (E0-E3) subsequent to intracavernous application of 10 μg Alprostadil. 14/48 (29%) patients had bilateral arterial obstructions and 34/48 (71%) had unilateral disease. Commonly affected was the internal pudendal artery (n = 31, 65%), followed closely by the common penile artery (n = 30, 64%). The least affected arteries were the dorsal penile (n = 6, 13%), hypogastric (n = 4, 8%), common iliac (n = 4, 8%), cavernosal (n = 4, 8%), and inferior gluteal (n = 1, 2%) arteries. Conclusions: Arterial obstructions amenable to endovascular revascularization are frequent in patients non-responsive to intracavernosal prostaglandin administration. Therapeutic strategies in ED patients non-responsive to conservative measures should therefore consider endovascular treatment opportunities.

scholarly journals Differences in Penile Hemodynamic Profiles in Patients with Erectile Dysfunction and Anxiety

2021 ◽  
Vol 10 (3) ◽  
pp. 402
Author(s):  
Rossella Cannarella ◽  
Aldo E. Calogero ◽  
Antonio Aversa ◽  
Rosita A. Condorelli ◽  
Sandro La Vignera
Keyword(s):  
Erectile Dysfunction ◽  
False Positive ◽  
Standard Dose ◽  
Color Doppler ◽  
Peak Systolic Velocity ◽  
Color Doppler Ultrasound ◽  
Hemodynamic Pattern ◽  
Diastolic Velocity ◽  
Severe Anxiety ◽  
Positive Results

Background: Penile echo-color Doppler ultrasound (PCDU) is the gold standard for the diagnosis of arterial erectile dysfunction (ED). Its reliability in patients with anxiety was questioned, due to false-positive results. Aim: To assess the penile hemodynamic response to intracavernous injection (ICI) of alprostadil in patients with anxiety-related ED. Methods: Patients with non-organic ED and a 5-item International Index of Erectile Function (IIEF-5) score ranging between 5 and 7 were enrolled. They were asked to compile the 7-item Generalized Anxiety Disorder (GAD-7) questionnaire to assess the degree of anxiety and were divided according to the GAD-7 score in Group 1 with minimal level of anxiety (n = 20), Group 2 with mild anxiety (n = 20), Group 3 with moderate anxiety (n = 20), and Group 4 with severe anxiety (n = 20). Peak systolic velocity (PSV) and the end-diastolic velocity (EDV) were sampled in all patients, through PCDU in the flaccid state, and 5, 10, 15, and 20 min after ICI of alprostadil at the standard dose of 10 μg. Results: In penile flaccidity, the patients showed a mean PSV of 8.0 ± 4.0 cm/s. The degree of anxiety was found to significantly influence both PSV and EDV at all assessed time-points. Particularly, it was negatively associated with the PSV at time 5 (r = −0.9, p < 0.01), 10 (r = −0.9, p < 0.01), 15 (r = −0.9, p < 0.01), and 20 (r = −0.7, p < 0.01) minutes, and positively with the EDV at time 5 (r = 0.7, p < 0.01), 10 (r = 0.6, p < 0.01), 15 (r = 0.5, p < 0.01), and 20 (r = 0.3, p < 0.01) minutes. Although all patients showed a mean dynamic PSV > 25 cm/s (which excluded an arterial ED according to the current guidelines), a peculiar hemodynamic pattern was found in patients with severe anxiety. In these patients, normal PSV values were reached only after 20 min from ICI, suggesting a “late-responder” profile. Conclusion: If further studies confirm the existence of a distinct hemodynamic profile in patients with severe anxiety, sampling the PSV and the EDV values could be proposed, for detecting patients with severe anxiety-related ED. Dynamic PCDU could be considered an accurate diagnostic test in patients with non-organic ED, since zero false-positive results were found in the present study. PSV in the flaccid state is not able to discriminate between arterial- or non-organic ED.

Optimal systolic and diastolic reconstruction windows for coronary CT angiography using 320-detector rows dynamic volume CT

2011 ◽  
Vol 66 (7) ◽  
pp. 614-620 ◽  
Author(s):  
G. Sun ◽  
M. Li ◽  
L. Li ◽  
G.-y. Li ◽  
H. Zhang ◽  
...  
Keyword(s):  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Coronary Ct ◽  
Volume Ct ◽  
Dynamic Volume Ct
Sign in / Sign up

Export Citation Format

Share Document