Radionuclide angiographic and echocardiographic quantitation of left-to-right shunts in children with ventricular septal defect

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Pediatr. Cardiol.; (United States)

DOI:https://doi.org/10.1007/BF02082323· OSTI ID:5996150

Breitweser, J A; Gelfand, M J; Meyer, R A; Dillon, T; Covitz, W; Kaplan, S

Pulmonary to systemic blood flow ratios (Qp:Qs) were estimated in 16 children with ventricular septal defects using simultaneous echocardiography and radionuclide angiography, and compared to Qp:Qs measured at cardiac catheterization by the Fick principle method (Fick). When ratios of echographic left atrial dimensions (LAD) to body surface area (LAD/M2), body length (LAD/ht), and aortic root diameter (LAD/Ao) were compared to the Qp:Qs determined by Fick, the correlation coefficients were r . 0.70 for LAD/M2, r . 0.66 for LAD/ht, and r . 0.54 for LAD/Ao. The correlation coefficients between Qp:Qs by Fick, and left ventricular dimensions/M2 and fractional shortening of the left ventricle were not significant. The correlation coefficients between Qp:Qs and the ratios estimated by gamma-variate and area-ratio analysis of radioisotope pulmonary dilution curves were r . 0.92 and r . 0.84, respectively. Thus, radionuclide angiography provided more accurate quantitation of left to right shunting through a ventricular septal defect than echocardiography. However, difficulty in obtaining adequate bolus injections of the radioisotope may result in technical failures whereas echocardiographic measurement is possible in almost all pediatric patients. Finally, the gamma-variate method cannot accurately quantitate shunt ratios greater than 3.5 to 1.

• Research Organization: Division of Cardiology, Children's Hospital Medical Center, Cincinnati, Ohio
• OSTI ID: 5996150
• Journal Information: Pediatr. Cardiol.; (United States), Journal Name: Pediatr. Cardiol.; (United States) Vol. 3:1; ISSN PECAD
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
AGE GROUPS
BLOOD FLOW
BODY
CARDIOGRAPHY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
CHILDREN
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DISEASES
DRUGS
HEART
LABELLED COMPOUNDS
ORGANS
PATHOLOGY
PATIENTS
RADIOCARDIOGRAPHY
RADIOPHARMACEUTICALS
USES