Uptake of myocardial imaging agents by rejected hearts
Technetium 99 m pyrophosphate, Gallium 67 and Thallium 201 uptakes were measured in heterotopically transplanted rat hearts. Five days after transplantation, Technetium 99 m pyrophosphate, and Gallium 67 uptakes were significantly higher in allogeneic grafts than in syngeneic grafts. At an early stage of rejection (three days after transplantation), only Technetium 99 m pyrophosphate uptake in the left ventricle of allogeneic grafts showed a significant difference (p less than 0.04). At five days, Thallium 201 uptake was significantly lower in allo- than syngeneic grafts. There was a positive correlation between radionuclide uptake and histologic degree of rejection for Technetium 99 m pyrophosphate and Gallium 67 while Thallium 201 uptake correlated negatively. Analysis of variance revealed that hearts with no or minimal rejection had statistically different uptakes than hearts with mild to moderate rejection. These results suggest that uptake of imaging agents might be useful in the diagnosis of rejection of the transplanted heart.
- Research Organization:
- Veterans Administration Medical Center, Buffalo, NY
- OSTI ID:
- 6121740
- Journal Information:
- J. of Heart Transplant.; (United States), Vol. 4:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
62 RADIOLOGY AND NUCLEAR MEDICINE
GALLIUM 67
UPTAKE
GRAFT-HOST REACTION
DIAGNOSIS
HEART
RADIONUCLIDE KINETICS
TRANSPLANTS
TECHNETIUM 99
THALLIUM 201
ISOMERIC NUCLEI
PYROPHOSPHATES
RATS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR SYSTEM
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
GALLIUM ISOTOPES
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAMMALS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
RADIOISOTOPES
RODENTS
SECONDS LIVING RADIOISOTOPES
TECHNETIUM ISOTOPES
THALLIUM ISOTOPES
VERTEBRATES
YEARS LIVING RADIOISOTOPES
560162* - Radionuclide Effects
Kinetics
& Toxicology- Animals
Plants
Microorganisms
& Cells
550601 - Medicine- Unsealed Radionuclides in Diagnostics