Assessment of the intracardiac left to right shunts with a single scintillation probe

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Clinical Cardiology; (USA)

DOI:https://doi.org/10.1002/clc.4960120810· OSTI ID:5481117

Tendera, M; Bartoszewski, A; Foremny, J; Salamon, A; Wodniecki, J; Malecka-Tendera, E ^[1]

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1. Silesian Medical Academy, Zabrze (Poland)

In order to assess the accuracy of pulmonary time-activity curves obtained at bedside with a single scintillation probe and Technetium-99m-labelled erythrocytes, pulmonary to systemic flow ratio (Qp:Qs) was calculated for radionuclide and hemodynamic investigations in 104 patients with suspected intracardiac left to right shunts. Cardiac catheterization confirmed the presence of shunts in 76 patients. Pulmonary time-activity curve was 100% sensitive, 88% specific, and 96% accurate in detecting the shunt. Correlation between the radionuclide and hemodynamic Qp:Qs was excellent (r = 0.93). Results were classified in four quantitative categories according to the Qp:Qs values. In 76 patients (73%) radionuclide and hemodynamic data fell in the same category. We conclude that radionuclide pulmonary time-activity curves generated with a scintillation probe is a reliable method in quantitative assessment of intracardiac left to right shunts.

• OSTI ID: 5481117
• Journal Information: Clinical Cardiology; (USA), Journal Name: Clinical Cardiology; (USA) Vol. 12:8; ISSN 0160-9289; ISSN CLCAD
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BLOOD CIRCULATION
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DISEASES
DYNAMIC FUNCTION STUDIES
HEART
HOURS LIVING RADIOISOTOPES
HYPERTENSION
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPES
SCINTILLATION COUNTING
SYMPTOMS
TECHNETIUM 99
TECHNETIUM ISOTOPES
VASCULAR DISEASES
YEARS LIVING RADIOISOTOPES