Martinoli C, Derchi L E, Rizzatto G, Solbiati L
Azienta Ospedale S. Martino e Cliniche, Universitarie Convenzionate, Largo Rosanna Benzi, 10, I-16 132 Genova, Italy.
Eur Radiol. 1998;8(7):1224-35. doi: 10.1007/s003300050540.
Power Doppler sonography (PD) is a technique that displays the strength of the Doppler signal, rather than the flow velocity and directional information. Its increased flow sensitivity and better vascular delineation have been used to document the presence and characteristics of flow in vessels that are poorly imaged with conventional color Doppler (CD), to identify areas of ischemia, to demonstrate inflammatory hyperemia or increased and irregular flow in tumors, as well as to assess serial vascular changes related to interval therapy. The present review reports the general principles of PD, portrays the results of clinical studies available in the literature, and suggests future trends of development.
能量多普勒超声检查（PD）是一种显示多普勒信号强度而非血流速度和方向信息的技术。其更高的血流敏感性和更好的血管描绘能力已被用于记录传统彩色多普勒（CD）成像不佳的血管中的血流情况及特征，识别缺血区域，显示肿瘤中的炎症性充血或血流增加及不规则情况，以及评估与间隔治疗相关的一系列血管变化。本综述报告了能量多普勒的一般原理，描述了文献中现有临床研究的结果，并提出了未来的发展趋势。
