نتایج جستجو برای: 201tl

تعداد نتایج: 335  

Journal: :Kaku igaku. The Japanese journal of nuclear medicine 1999
R Matsui T Komori Y Nakata K Doi K Tabuchi Y Saika K Utsunomiya I Adachi T Shimizu K Sueyoshi I Narabayashi S Morishita

201Tl-SPECT was performed to diagnose the malignancy of bone and soft tissue tumors by visual and quantitative assessment in 48 patients (17 malignant lesions and 31 benign lesions). SPECT images were obtained in the early phase (15 min after injection) and the delayed phase (240 min). By visual assessment a tumor was considered malignant if high accumulation was found in the tumor in the early...

Journal: :Circulation 1985
D W Wahr T A Ports E H Botvinick M Dae N Schechtmann J Huberty R S Hattner J W O'Connell K Turley

To assess the effects of angioplasty (PTCA) and intracoronary streptokinase (ICSK) on relative myocardial perfusion, we administered 99mTc-macroaggregated albumin (MAA) to the uninvolved coronary artery before successful PTCA in 33 patients and before successful infusion of ICSK in eight patients and of 111In-MAA into the same vessel after the intervention. In 10 patients who underwent PTCA, MA...

Journal: :Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance 2004
Katie S Lekx Frank S Prato Jane Sykes Gerald Wisenberg

PURPOSE The underlying assumption in delayed enhancement or constant infusion techniques to detect infarcted myocardium is that the partition coefficient (lambda) of Gd-DTPA only increases in permanently damaged tissue. This assumption is supported in canine models of stunned and infarcted myocardium but has not been adequately tested in models of chronic, reversibly damaged tissue. METHODS A...

Journal: :Journal of applied physiology 1998
R M Effros R Schapira K Presberg K Ozker E R Jacobs

Stop-flow studies were used to characterize solute uptake in isolated rat lungs. These lungs were perfused at 8 or 34 ml/min for 10-28 s with solutions containing 125I-albumin and two or more of the following diffusible indicators: [3H]mannitol, [14C]urea, 3HOH, 201Tl+, or 86Rb+. After this loading period, flow was stopped for 10-300 s and then resumed to flush out the perfusate that remained i...

Journal: :Annals of nuclear medicine 2004
Aya Suzuki Takashi Togawa Junpei Kuyama Tadaki Nakahara Fujimi Kinoshita Toshinao Takenouchi Hiroyuki Harada Ken Omura

Whether a patient with head and neck cancer has mandibular invasion or not is important in determining the method of resection surgery. But, no modality is adequately reliable when used alone in the evaluation of mandibular invasion. Therefore, to more accurately diagnose mandibular invasion in head and neck cancer, we used a new modality, namely, 99mTc methylene diphosphonate (MDP) or 99mTc hy...

Journal: :Circulation 2005
Haili Su Francis G Spinale Lawrence W Dobrucki James Song Jing Hua Sarah Sweterlitsch Donald P Dione Patti Cavaliere Conroy Chow Brian N Bourke Xiao-Yu Hu Michael Azure Padmaja Yalamanchili Richard Liu Edward H Cheesman Simon Robinson D Scott Edwards Albert J Sinusas

BACKGROUND Time-dependent activation of matrix metalloproteinases (MMPs) after myocardial infarction (MI) contributes to adverse left ventricular (LV) remodeling; however, noninvasive methods to monitor this process serially are needed. METHODS AND RESULTS MMP-targeted radiotracers were developed that displayed selective binding kinetics to the active MMP catalytic domain. Initial nonimaging ...

Journal: :Circulation 2004
Daniel C Lee Orlando P Simonetti Kathleen R Harris Thomas A Holly Robert M Judd Edwin Wu Francis J Klocke

BACKGROUND Although magnetic resonance first-pass imaging (MRFP) has potential advantages in pharmacological stress perfusion imaging, direct comparisons of current MRFP and established radionuclide techniques are not available. METHODS AND RESULTS Graded regional differences in coronary flow were produced during global coronary vasodilation in chronically instrumented dogs by partially occlu...

Journal: :Circulation 1992
A Koike M Hiroe H Adachi T Yajima H Itoh T Takamoto K Taniguchi F Marumo

BACKGROUND The cardiac output-O2 uptake (VO2) relation, which is thought to be linear and predictable in normal humans, has not been clarified in cardiac patients. We evaluated the relation between cardiac output and VO2 during the incremental exercise test in patients with previous myocardial infarction. METHODS AND RESULTS Twenty-two patients (age, 58.1 +/- 8.0 years) with previous myocardi...

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