[Clinical significance of pulmonary valvular resistance in children determined by color Doppler echocardiography].
Pulmonary valvular resistance (PVR) of 40 children with pulmonary valvular stenosis was determined by color Doppler echocardiography before and after percutaneous balloon pulmonary valvuloplasty as well as during their follow-up. The correlation coefficient of PVR between Doppler method and catheterization method was 0.85 ( P <0.01) and the correlation coefficient between PVR determined by former method and pulmonary valvular area determined by the latter was -0.80 ( P <0.01). This study indicates that color Doppler echocardiography can take the place of catheterization to determine PVR in assessing the severity of pulmonary valvular stenosis in children.
Zhou
Q
Q
Department of Ultrasonography, Second Affiliated Hospital, Hunan Medical University, Changsha.
Lu
S
S
Fan
P
P
D000293:Adolescent; D002404:Catheterization; D002648:Child; D002675:Child, Preschool; D018618:Echocardiography, Doppler, Color; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011666:Pulmonary Valve Stenosis / Q000000981:diagnostic imaging* / Q000628:therapy; D014655:Vascular Resistance