Clinicopathologic findings in 52 patients studied by technetium-99m stannous pyrophosphate myocardial scintigraphy

Journal Article · Wed Jan 31 23:00:00 EST 1979 · Circulation; (United States)

DOI:https://doi.org/10.1161/01.CIR.59.2.257· OSTI ID:6289828

Poliner, L R; Buja, L M; Parkey, R W; Bonte, F J; Willerson, J T

Scintigraphic, clinical and pathological findings were correlated in 52 patients studied by technetium-99m stannous pyrophosphate (/sup 99m/Tc-PYP) myocardial scintigraphy before death or surgical resection of myocardium. Fifty-nine clinical events were studied with scintigraphy in the 52 patients; 41 of the 59 were associated with one or more abnormal /sup 99m/Tc-PYP studies and 18 with normal /sup 99m/Tc-PYP scintigrams. Myocardial scintigrams were positive in 29 of 31 cases with clinicopathological evidence of a corresponding discrete, grossly obvious acute myocardial infarct, including 16 of 16 transmural myocardial infarcts and 13 of 15 subendocardial infarcts. In 16 to 18 cases, negative myocardial scintigrams correlated with the absence of acute myocardial infarction determined by clinicopathological evidence. In two cases small subendocardial infarcts (< 3g) were not detected by /sup 99m/Tc-PYP myocardial scintigraphy. Of the 12 additional instances of positive /sup 99m/Tc-PYP myocardial scintigrams, five were associated with clinical unstable angina pectoris and seven were in the category of persistently positive scintigrams, since the scans were obtained 2.5 months or longer after proven or suspected acute myocardial infarcts. In all 12 instances, the positive /sup 99m/Tc-PYP scintigrams were associated with evidence of multifocal irreversible myocardial damage. The findings indicate that a positive /sup 99m/Tc-PYP myocardial scintigram is a sensitive indicator of significant myocardial injury which may occur as confluent coagulation necrosis corresponding to clinical acute myocardial infarction, or as multifocal coagulation necrosis or myocytolysis associated with unstable angina pectoris or recurrent ischemic heart disease, especially after previous infarctions.

• Research Organization: Univ. of Texas Health Science Center, Dallas
• OSTI ID: 6289828
• Journal Information: Circulation; (United States), Journal Name: Circulation; (United States) Vol. 59:2; ISSN CIRCA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ANEMIAS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COMPLEXES
CORRELATIONS
COUNTING TECHNIQUES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
HEART
HEMIC DISEASES
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISCHEMIA
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICAL EXAMINATIONS
MUSCLES
MYOCARDIAL INFARCTION
MYOCARDIUM
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PATIENTS
PHOSPHORUS COMPOUNDS
PYROPHOSPHATES
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
SYMPTOMS
TECHNETIUM 99
TECHNETIUM ISOTOPES
TIN COMPLEXES
YEARS LIVING RADIOISOTOPES