Transperineal versus transvaginal color Doppler imaging of the uterine circulation

Abstract

Transperineal sonography has been described as being useful in assessing patients in special clinical situations such as posterior placenta previa, preterm labor, stress incontinence, and vaginal atresia. We explored the feasibility of this approach in assessing the uterine circulation in 54 subjects, of whom 36 were postmenopausal. We found that visualization of the uterine artery by the transperineal approach was satisfactory in most patients. The uterine arterial Doppler indices obtained from this approach were compared with those obtained by the transvaginal route. Highly significant correlations were found (correlation coefficient r for pulsatility index = 0.74, p < 0.0001). No significant differences in results between the two approaches were detected using the Wilcoxon Matched‐Pairs Signed‐Rank test. We conclude that transperineal Doppler studies of the uterine circulation are possible and may be useful in certain patient groups. © 1997 John Wiley & Sons, Inc. J Clin Ultrasound 25:293–299, 1997

Quantification of blood velocity and flow rates in the uterine vessels using echo planar imaging at 0.5 Tesla

“…Color Doppler offers depiction of the vessel while measuring the velocity which reduces errors in measuring the area. If values reported in the figures are peak and not mean values (e.g., Chan et al and Rizzo et al) (36, 37) then velocity values obtained here are similar to mean values averaged over the period of early‐to‐end diastole. The large values obtained by ultrasound measurement at early diastole may be underestimated by our MRI measurement due to intra‐voxel dephasing only at the systolic part of the cardiac cycle.…”

Detection and Characterization of Perianal Inflammatory Disease

“…Transperineal sonography is a fast, noninvasive, and feasible technique for the evaluation of various pathologic conditions of the pelvic floor. Previous studies have shown its clinical applicability in the assessment of anal disorders in children and infants, 10 in gynecologic conditions, [11][12][13] and for guiding percutaneous prostate biopsy. 14 The use of transperineal gray scale sonography for the evaluation of the anorectal region yielded promising results, mainly for its flexible coverage of the anorectal region and entire pelvic floor, painless application, and cost-effectiveness.…”