Accuracy of left ventricular end-diastolic dimension determinations obtained by radionuclide angiocardiography. [Dogs; phantom]
Conference
·
· J. Nucl. Med.; (United States)
OSTI ID:6364527
This study tested the ability of first-pass radionuclide angiocardiography to detect accurately the left ventricular endocardial surface of the intact, conscious, chronically instrumented dog. A spherical phantom was used to define the influence of collimation. These were used to analyze cardioscintigrams obtained in 19 studies of six dogs. The dogs were provided with pulse transit sonomicrometer dimension transducers on the endocardium, right-atrial pacing electrodes, electrocardiographic leads, and catheters in the superior vena cava and right or left atria. The minor-axis dimension of the left ventricle was measured ultrasonically while the cardioscintigram was being stored. The minor-axis dimension and end-diastolic volume obtained by the two techniques had linear correlation coefficients of 0.95 and 0.98. This correlation indicates the inherent accuracy of radionuclide techniques by defining left-ventricular endocardial edges for a large range of volumes in the dog (18 to 44 ml).
- Research Organization:
- Duke Univ., Durham, NC
- OSTI ID:
- 6364527
- Conference Information:
- Journal Name: J. Nucl. Med.; (United States) Journal Volume: 22:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARDIOGRAPHY
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DOGS
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAMMALS
MOCKUP
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PERTECHNETATES
PHANTOMS
RADIOCARDIOGRAPHY
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
STRUCTURAL MODELS
TECHNETIUM 99
TECHNETIUM COMPOUNDS
TECHNETIUM ISOTOPES
TRANSDUCERS
TRANSITION ELEMENT COMPOUNDS
ULTRASONOGRAPHY
VERTEBRATES
VOLUME
YEARS LIVING RADIOISOTOPES
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARDIOGRAPHY
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DOGS
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAMMALS
MOCKUP
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PERTECHNETATES
PHANTOMS
RADIOCARDIOGRAPHY
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
STRUCTURAL MODELS
TECHNETIUM 99
TECHNETIUM COMPOUNDS
TECHNETIUM ISOTOPES
TRANSDUCERS
TRANSITION ELEMENT COMPOUNDS
ULTRASONOGRAPHY
VERTEBRATES
VOLUME
YEARS LIVING RADIOISOTOPES