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Original Article
Comparisons of the Pressure Gradients between Two-Dimensional Echocardiographic Doppler Studies and Cardiac Catheterization in Pulmonary Stenosis.
Won Ho Choi, Young Sook Kang, Tae Chan Kwon, Chin Moo Kang
Clin Exp Pediatr. 1990;33(7):940-945.   Published online July 31, 1990
The right ventricular outflow tract pressure gradient measured by Doppler echocardiography was compared with the pressure gradient by cardiac catheterization in 19 children who were admitted to the department of Pediatrics, Dong San Hospotal during the period of 18 months from January 1987 to June 1988 for the evaluation of heart disease. Among 19 cases, 10 cases were Tetralogy of Fallot, 5 cases were...
The Estimation of Pressure Gradients of the various Cardiac Chambers Using Conbtinuos-Wave Doppler Echocardiography in Congenital Heart Disease.
Du Young Choi, Yeon Sim Kim, Hyung Suk Yoon
Clin Exp Pediatr. 1990;33(3):324-331.   Published online March 31, 1990
Continuous-Wave doppler echocardiography was used to estimate the Pressure gradient in 55 children with congenital heart disease. To test whether the Doppler method would be useful for evaluation and management of pediatric patients with ventricular septal defect (VSD)), pulmonic stenosis (PS), tricuspid regurgitation (TR), we recorded the maximal velocity (Vmax) of transseptal, pulmonary and regurgitant tricuspid jet flows and calculated the pressure gradients used by...
Estimation of Pressure Difference Between Right and Left Ventricle in Ventricular Septal Defect with Doppler Echocardiography.
Myung Chul Cho, Byung Kiu Park, Woo Sung Park, Chung Il Noh, Jung Yun Choi, Yong Soo Yoon, Chang Yee Hong
Clin Exp Pediatr. 1988;31(3):315-321.   Published online March 31, 1988
We compared the interventricular pressure gradient with Doppler echocardiography and that measured during cardiac catheterization in 48 children who were admitted for diagnostic cardiac catheterization and angiography to the ward of Pediatrics, Seoul National University Children’s Hospital during the period of 7 months from June to December 1986. Among 48 cases of simple ventricular septal defect, 21 cases were supracristal (type I), and 27...
Noninvasive Assessment of Pressure Gradient by Quantitative Two-Dimensional Echocardiographic Doppler Studies in Pediatric Cardiovascular Diseases.
Wang Bok Lee, Hye Li Chung, Dong Jin Lee, Sang Bum Lee
Clin Exp Pediatr. 1987;30(5):518-526.   Published online May 31, 1987
In this study we assessed the predictive accuracy of continuous wave Doppler echocardiography for noninvasive measurement of pressure gradients in various pediatric cardiovascular diseases. We studied 32 children, ages 50 days to 12 years, prior to cardiac catheterization or after palliative operation and compared Doppler-estimated gradients and gradients obtained at catheterization or operation. The ultrasound beam was aligned as much as possible to...