The synthesis and characterisation of a thallium(I) triscarbene complex of the chelating, tripodal carbene ligand 1,3,5-[tris(3-tert-butylimidazol-2-ylideno)methyl]-2,4,6-trimethylbenzene is reported, in which the thallium ion is coordinated by three N-heterocyclic carbene donors in a distorted trigonal planar environment.

OBJECTIVES The aim of this study was to examine the ability of exercise single-photon emission computed tomographic (SPECT) thallium imaging to identify high risk women with left main or three-vessel coronary artery disease using a stepwise discriminant analysis. BACKGROUND Previous studies have used statistical methods to identify high risk men with coronary artery disease. Only limited data...

Of 43 consecutive black patients (42 male) with sarcoidosis, 12 (28%) complained of chest pain that met the clinical criteria for typical (four patients) or atypical (eight patients) angina pectoris. These patients underwent cardiopulmonary assessment, which included exercise and redistribution thallium-201 scans and, if indicated, coronary angiography. Nine control patients with sarcoidosis ma...

We evaluated the effect of dipyridamole on thallium-201 myocardial perfusion in 23 patients with progressive systemic sclerosis (PSS) with diffuse scleroderma. Thallium-201 single photon emission computed tomography (SPECT) was performed at rest and after coronary artery vasodilatation with intravenous dipyridamole (0.14 mg/kg/min for four minutes). The left myocardium was divided into nine seg...

Myocardial imaging using thallium-201 was performed in patients with Kawasaki disease. In two patients whose ECGs showed ischemic changes, the scintiscan demonstrated an area with diminished radioactivity at the site corresponding to electrocardiographic localization of the infarction. Thallium-201 myocardial imaging is useful in the diagnosis of myocardial infarction not only in adults but als...

We report a successfully treated case of severe thallium intoxication that required 95 days of assisted ventilation and 224 days of hospitalization. Monitoring of the patient for 500 days by measuring thallium in whole blood, serum, and urine is documented, and the role of the laboratory and utility of the measurements are considered.

Two years after an orthotopic cardiac transplant a 28 year old man was found to have clinically significant stenosis of the right coronary artery at routine coronary angiography. This lesion was accompanied by a perfusion defect on exercise thallium scintigraphy. Percutaneous transluminal coronary angioplasty of the lesion improved the angiographic appearance of the stenosis and reduced the exe...

BACKGROUND Both radionuclide perfusion tracers and contractile response to dobutamine have been used to identify hibernating myocardium. The aim was to compare 201Tl (thallium) single photon emission CT (SPECT), 99mTc-tetrofosmin (tetrofosmin) SPECT, and dobutamine cine MRI for identifying regions of reversible myocardial dysfunction. METHODS AND RESULTS Thirty patients with 3-vessel coronary...