Quantification of power Doppler energy and its future potential

Effect of the copper-intrauterine device (TCu 380A) on subendometrial microvascularization and uterine artery blood flow

“…Utilizing power Doppler sonography, we were able to obtain an in vivo quantification of subendometrium vascularity, an area containing rather weak vascular signals, which are difficult to detect with conventional color Doppler (4,5). Probably PDE, and not PI nor RI, was associated with IUD side effects for the reason that PDE quantifies the microvasculature, whereas PI and RI measure the blood flow pulsatility and resistance, respectively.…”

Intraobserver and interobserver variability of ovarian volume, gray‐scale and color flow indices obtained using transvaginal three‐dimensional power Doppler ultrasonography

“…Despite this, the use of power Doppler imaging as an assay in clinical settings has been restricted, the major problem being its quantification. There are now several options in two‐dimensional (2D) power Doppler research for quantification which include subjective4, semiquantitative5 and objective quantitative methods6.…”

Power Doppler Area in the Diagnosis of Endometrial Cancer

“…Therefore, it is agreed that a power Doppler image reflects vascularity of tissue. 12,13 Recently, an algorithm combining grayscale and power Doppler measures has been suggested to be able to distinguish endometrial malignancy from normal endometrium in women with postmenopausal bleeding and a TET of greater than 5 mm. 12 However, the use of this algorithm is time consuming and necessitates extensive computer analyses.…”