The comparison of 2-18F-2-deoxyglucose and 15-(ortho-123I-phenyl)-pentadecanoic acid uptake in persisting defects on thallium-201 tomography in myocardial infarction
- Institute of Medicine, Research Center Juelich (Germany)
The myocardial uptake of glucose and fatty acids into 201Tl redistribution defects were studied in 32 patients with myocardial infarction by tomography using 2-18F-2-deoxyglucose (FDG) and 15-(ortho-123I-phenyl)-pentadecanoic acid (oPPA). A total of 1153 segments were analyzed, 408 (35%) of which showed a persistent thallium-defect in stress-redistribution images. Of the segments with a decreased 201Tl uptake in these redistribution tomograms, 50.5% had a decreased uptake of both FDG and oPPA; in 21.8% FDG as well as oPPA uptake was within normal range. Normal FDG uptake but decreased oPPA uptake was detected in 17.4%, whereas 10.3% of the segments had normal oPPA uptake but decreased FDG uptake (chi-square test, p less than 0.001). A significant correlation of FDG and oPPA uptake (r = 0.51) was found in the segments with persistent 201Tl defect. Thus, a substantial fraction of persistent thallium-defects after healed myocardial infarction exhibit FDG as well as oPPA uptake, probably due to residual fatty acid metabolism in partially ischemic regions.
- OSTI ID:
- 5462158
- Journal Information:
- Journal of Nuclear Medicine; (United States), Vol. 32:7; ISSN 0161-5505
- Country of Publication:
- United States
- Language:
- English
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CARBOXYLIC ACIDS
UPTAKE
GLUCOSE
HEART
SCINTISCANNING
MYOCARDIAL INFARCTION
DIAGNOSIS
COMPARATIVE EVALUATIONS
PATIENTS
THALLIUM 201
ALDEHYDES
BETA DECAY RADIOISOTOPES
BODY
CARBOHYDRATES
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
EVALUATION
HEAVY NUCLEI
HEXOSES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MONOSACCHARIDES
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SACCHARIDES
SECONDS LIVING RADIOISOTOPES
THALLIUM ISOTOPES
550601* - Medicine- Unsealed Radionuclides in Diagnostics