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

Abstract

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.