RESULTS : After acetic acid application to the cervix , area of cervical ectopy was quantified by computerized planimetry of colposcope and inspected by doctor , the two methods had no significant different .

结果：宫颈涂3%醋酸后目测与电子阴道镜精确计算宫颈糜烂面积，两种方法无显著性差异。

patients with mitral stenosis were prospectively studied . The mitral areas were evaluated by M-mode color Doppler flow convergence region and two-dimensional color Doppler flow convergence region , and compared with the results by two-dimensional echocardiography planimetry and pressure half-time .

本研究应用M型彩色多普勒血流会聚法、二维彩色多普勒血流会聚法测量21例以二尖瓣狭窄为主的风心病患者二尖瓣狭窄瓣口面积，并分别与二维超声直接测面积法及多普勒超声压力减半时间法所测二尖瓣口面积相比较。