نتایج جستجو برای: thallium determination
تعداد نتایج: 254878 فیلتر نتایج به سال:
Thallium-201 myocardial scintigraphy was performed in patients with congenital heart defects to determine whether, by quantification of right ventricular isotope uptake, one could assess the degree of right ventricular hypertrophy and so predict the level of right ventricular pressure. A total of 24 patients ranging in age from 7 months to 30 years was studied; 18 were studied before corrective...
To determine whether the severity of thallium-201 scintigraphic defects present within hours of acute myocardial infarction (MI) could he used to predict subsequent mortality, thallium-201 imaging was performed within 15 hours of the onset of symptoms in 42 patients with acute MI. Patients with pulmonary edema or shock were excluded. The extent of perfusion defect was determined in three views ...
BACKGROUND Previous studies showed that thallium scintigraphy and dobutamine echocardiography were accurate, noninvasive ways of predicting contractile recovery after revascularization in patients with left ventricular (LV) dysfunction. However, the prognostic impact of such methods remains uncertain. METHODS AND RESULTS We prospectively studied 137 consecutive patients with coronary disease ...
The relative sensitivity and specificity of individual and combined noninvasive tests to detect coronary heart disease were evaluated in 75 patients with chest pain admitted for cardiac catheterization and coronary arteriography. Of the 75 patients, 56 had coronary heart disease. Exercise-induced ST-segment abnormalities (>1 mm) were found in 58%. In contrast, computer-processed exercise thalli...
OBJECTIVE In the chronic phase of myocardial infarction, the relation between myocardial recovery and infarct related artery status remains unclear. The spontaneous changes in rest-redistribution thallium defect size were prospectively studied over six months in 52 patients with chronic Q wave myocardial infarction. DESIGN Changes in rest thallium defect size, thallium uptake in the infarct a...
INTRODUCTION: Thallium is a heavy metal that is used in the manufacture of electronic components, optical lenses, semiconductor materials, alloys, gamma radiation detection equipment, imitation jewelry, artist's paints, low temperature thermometers, and green fireworks. Cigarette smoking is also a source of thallium. After absorption, it gets accumulated in liver and kidney and causes renal and...
Technetium-99m-labeled agents have advantages over thallium-201 in terms of photon statistics, cost and clinical availability. They have been suggested as an alternative to thallium for myocardial perfusion imaging. Teboroxime is a new boronic acid adduct of technetium dioxime (BATO) compound that demonstrates favorable characteristics in preliminary studies. With use of a novel (seated) patien...
Kazuyuki Sakamoto, Johan Eriksson, Seigi Mizuno, Nobuo Ueno, Hiroshi Tochihara and Roger Uhrberg, Core-level photoemission study of thallium adsorbed on a Si(111)-(7×7) surface: Valence state of thallium and the charge state of surface Si atoms, 2006, Physical Review B. Condensed Matter and Materials Physics, (74), 7, 075335. http://dx.doi.org/10.1103/PhysRevB.74.075335 Copyright: American Phys...
poisoning. Gradually the patient became drowsy and developed ptosis, glossitis, stomatitis, alopecia, Mees lines, head tremor and nystagmus. His blood thallium level was 40,980 g/ml and urine 608 g/ml. He was treated with hemodialysis, potassium, laxatives and high-dose multivitamins. Gradually his sensorium improved, and ptosis and head tremor disappeared, but he developed grade 3 quadripleg...
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