- Assessment of Regional Wall Motion of the Left Ventricle in Children with Congenital Heart Disease
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Chang Hee Han, Jun Ho Huh, Un Seok Nho, Byung Ho Choi, Myung Chul Hyun, Sang Bum Lee
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Clin Exp Pediatr. 1999;42(6):807-816. Published online June 15, 1999
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Purpose : To assess wall motion of the left ventricle in the various forms of congenital heart disease and to select appropriate methods by which to gauge left ventricular wall motion.
Methods : We evaluated left ventricular function, including volume, global ejection fraction, and regional wall motion(Centerline method, Local Ejection Fraction, Curved Perimeter method and Radial method). The evaluation was done... |
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- Fixed Subaortic Stenosis in Children
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Eun Jin Choi, Byung Ho Choi, Myung Chul Hyun, Sang Bum Lee
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Clin Exp Pediatr. 1997;40(4):505-511. Published online April 15, 1997
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Purpose : This study attempted to describe the Doppler and two-dimensional echocardiographic features of fixed subaortic stenosis, the de novo occurrence and progression of this lesion and to review its etiology, treatment and course.
Methods : We studied 17 patients of fixed subaortic stenosis who, between Jan. 1993 and Jan. 1996, ware diagnosed by echocardiographic examination at Kyungpook National University Hospital.... |
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- Myocardial Functions Estimated by Pulsed Doppler Echocardiography in Patientswith Chronic Renal Failure
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Hyun June Huh, Byung Ho Choi, Myung Chul Hyun, Sang Bum Lee
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Clin Exp Pediatr. 1996;39(12):1712-1728. Published online December 15, 1996
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Purpose : The objectives of this study were to estimate myocardial functions in patients with
chronic renal failure by pulsed Doppler echocardiography, and investigate correlation between
Doppler and disease parameters.
Methods : We studied 13 patients with chronic renal failure whose creatinine clearance rate
less than 25ml/min. Using pulsed Doppler echocardiography with curve following method, we
measured peak velocity, mean velocity, velocity-time integral and peak... |
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- Serial M-mode Echocardiographic Assessment of Left Ventricular Function in Kawasaki Disease
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Byung Ho Choi, Jin Kyung Kim, Myung Chul Hyun, Sang Bum Lee
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Clin Exp Pediatr. 1994;37(6):759-766. Published online June 15, 1994
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To investigate the effect of kawasaki disease on left ventricular function, we studied 92 patients with Kawasaki disease at initial visit, after 3 months (78 patients) and after 1 year (9 patients).
Using serial M-mode echocardiogram, we obtained LVD(d) (left ventricular internal dimension at end diastole), LVD(s)(left ventricular internal dimension at end systole), FS(fractional shortening), ET(ejection time), VmCF(mean velocity of circumferential... |
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- ON THE CYTOPLASMIC INCLUSIONS SEEN IN HUMAN THROAT EPITHELIAL CELLS
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Byung Ho Choi, Chan Ock Park
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Clin Exp Pediatr. 1960;3(2):41-47. Published online October 31, 1960
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Cytoplasmic inclusions have been identified in throat epithelial cells of 82 cases out of 92 cases studied. The inclusions occur in a high percentage when there is some degree of throat irritation. They are found more abundantly and frequently in patients with chronic throat irritations and in measles than in normal persons.
Various special stains utilized tend to favor these structures... |
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