OBJECTIVE To assess the effects of exposure to low concentrations of carbon monoxide (CO), as commonly measured in atmospheric urban air pollution and certain occupational environments, on exercise performance and myocardial perfusion in young healthy men, and the possible need for tighter restrictions on ambient concentrations of CO. METHODS 15 young, healthy non-smoking men, 18-35 years old...

In infants and children, anomalous origin of the left coronary artery (ALCA) from the pulmonary artery may be difficult to distinguish from congestive cardiomyopathy (CCM) of other causes. We performed thallium-201 myocardial perfusion imaging in seven children with ALCA and in nine with CCM to study the usefulness of this technique in distinguishing between these lesions. Localized abnormaliti...

A case of congenitally-corrected transposition of the great arteries is presented with the correlation of thallium scintigraphic results with catheterization data. The essential features of the thallium scintigrams were marked counterclockwise rotation of the heart with perfusion abnormalities of the inferior wall and apex. Since patients with congenitally-corrected transposition of the great a...

We report an intriguing transition from the quantum spin Hall phase to the spin Hall effect upon segregation of thallium adatoms adsorbed onto a graphene surface. Landauer-Büttiker and Kubo-Greenwood simulations are used to access both edge and bulk transport physics in disordered thallium-functionalized graphene systems of realistic sizes. Our findings not only quantify the detrimental effects...

to regional myocardial perfusion. Circulation 51: 641, 1975 12. Bradley-Moore PR, Lebowitz E, Greene MW, Atkins HL, Ansari AN: Thallium-201 for medical use. II. Biologic behavior. J Nucl Med 16: 156, 1975 13. Beller GA, Watson DD, Pohost GM: Kinetics of thallium distribution and redistribution: clinical applications in sequential myocardial imaging. In Cardiovascular Nuclear Medicine, 2nd ed, e...

We report a rare case of serious voluntary intoxication by laboratory thallium monobromate combined with alcohol intake by a 24-years old man. The diagnosis of thallium intoxication was based on history, nonspecific but typical clinical symptoms including gastrointestinal complaints, painful polyneuropathy, alopecia, and confirmed by the finding of increased thallium concentration in the urine....

A case of myotonic muscular dystrophy in which thallium-20l showed dystrophic change of skeletal muscle is described. After i.v. injection of2 mCi of thallium-20l, the patient's whole body scintigram was reconstructed by taking the geometric mean of the corresponding anterior and posterior pixel counts over the 512 x 512 matrix formal. The scintigram showed manifest hypoperfusion at the site of...

one subject with isolated, fixed coronary obstruction. Three subjects with variant angina had short episodes of ischemic ST-segment elevation that lasted 20-100 seconds. Thallium scintigrams demonstrated excess uptake in regions judged to be ischemic by angiographic and electrocardiographic criteria. Two subjects, one with variant angina and the other with a fixed coronary lesion, had prolonged...

SUMMARY Dipyridamolc-Thallium imaging is a relatively safe and accurate method to evaluate myocardial perfusion in patients who arc unable to exercise to a maximal exertion (5,6,8,9). A 51year-old woman was admitted to Taleghani hospital with clinical symptoms and signs of coronary artery disease. Intravenous dipyridamote-Thallium scan was performed in this case. In multiple views obtained f...