The color Doppler jetarea and circumference of all jets were also increased.
彩色多普勒示返流及分流束的面积和周长均增加。
2
The smaller the jet orifice with quicker jet velocity, the larger the color Doppler jetarea(P<0.001).
射流口径越小（射流速度越大），射流面积越大（P＜0．001）。
3
The study indicated that in the clinical application of color Doppler valve regurgitation, color Doppler jetarea has a certain semiquantitative value with a small range of jet velocity.