title: 201Tl myocardial imaging in a cardiac rejection episode.
abstract: Serial myocardial imaging using thallium Tl 201 was performed in the early follow-up of two patients with orthotopic cardiac transplantation. In one patient, non-homogeneous uptake, small defects and an irregular myocardial edge were observed during a moderately acute rejection crisis revealed by endomyocardial biopsy. The abnormal gammagraphic findings and histological changes were coincident and exhibited a parallel reversal. We emphasize the connection between these two events. The mechanisms which could explain these phenomena are discussed.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D001706:Biopsy; D006084:Graft Rejection; D006321:Heart / Q000000981:diagnostic imaging*; D016027:Heart Transplantation; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013793:Thallium
chemical_list: D011868:Radioisotopes; D013793:Thallium