Seven-pinhole emission tomography with thallium-201 in patients with prior myocardial infarction
Thirty-six patients with prior myocardial infarction, and 14 patients without, had myocardial imaging at rest using both seven-pinhole emission tomography and planar imaging with thallium-201. The sensitivity and specificity of the two approaches for the detection of prior myocardial infarction were compared. Qualitatively, planar imaging yielded sensitivities of 69% (25 of 36) and 80% (29 of 36) with Polaroid and video display formats, respectively. A semiquantitative analysis gave a sensitivity of 75% (27 of 36). Specificities for these three planar approaches were, respectively, 100% (14 of 14), 93% (13 of 14), and 71% (10 of 14) for the Polaroid, video, and semiquantitative analyses. Seven-pinhole tomography had a sensitivity of 83% (30 of 36%) by qualitative or visual inspection and 86% (31 of 36) by semiquantitative analysis. Specificities by these two techniques were 71% (10 of 14) and 57% (8 of 14). There were no statistically significant differences in either sensitivity or specificity between the planar and tomographic approaches. Repeat seven-pinhole images were identical in 95% (46 of 48) of patients, showing that reproducibility was satisfactory. We conclude that the seven-pinhole tomographic approach has no advantage over standard planar imaging in the detection of prior myocardial infarction.
- Research Organization:
- Univ. of Washington, Seattle
- OSTI ID:
- 6604074
- Journal Information:
- J. Nucl. Med.; (United States), Vol. 22:2; Conference: 28. annual meeting of Society of Nuclear Medicine, Las Vegas, NV, USA, 16 Jun 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
MYOCARDIAL INFARCTION
DIAGNOSIS
MYOCARDIUM
SCINTISCANNING
THALLIUM 201
DIAGNOSTIC USES
COMPARATIVE EVALUATIONS
COMPUTERIZED TOMOGRAPHY
DISPLAY DEVICES
IMAGE SCANNERS
NUCLEAR MEDICINE
PATIENTS
SENSITIVITY
SPECIFICITY
BETA DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICINE
MUSCLES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
THALLIUM ISOTOPES
TOMOGRAPHY
USES
550601* - Medicine- Unsealed Radionuclides in Diagnostics
550901 - Pathology- Tracer Techniques