Thallium-201 has been evaluated for myocardial imaging by determining its distribution and
assessing its imaging properties. Organ distribution with time was studied in goats, chosen …

METHODS Tracer, subjects, and sampling. Thallium-201 as thallous chloride was either
prepared on the Brook haven 60-in. cyclotron by a method previously described (2) or it was …

Following intravenous administration, the myocardial concentration of tracer thallium-201,
potassium-43, and rubidium-81 were determined in mice; thallium was present in the …

The field of myocardial perfusion imaging has made many advances but still is in its infancy.
The limitations in the technology at this time include limited instrument resolution of 6–9 mm …

METHODS Resting thallium-201 images were obtained from four mongrel dogs (weight= 17-
26 kg) in the fol lowing manner. An 18-gage needle was inserted into a leg vein and 1-2 mCi …

MATERIALS AND METHODS Thallium-201 is produced by irradiating a natural thallium
target in the external beam of the 60-in. Brookhaven cyclotron with 31-MeV protons. The …

Thallium-201 myocardial perfusion images were obtained from 13 healthy adults after tracer
administration both at rest and at maximal stress. On the rest-injected scan, tracer was seen …

SUMMARY Myocardial thallium-201 (20TI) kinetics havenot been precisely defined because
reliable tech-niques to determine continuous activity in vivo havenot been available. In this …

An abnormal uptake pattern of 201Tl thallous chloride observed during myocardial
scintigraphy of a patient with known thoracic tumour localization suggested the possibility …

Four cardioactive drugs were studied to determine their effect on the thallium-201
myocardial image. Four unanesthetized dogs were imaged weekly for 14 wk following the …