Thallium 201 for assessment of myocardial viability. Bonow RO 1, Dilsizian V. Author information. Affiliations. 1 author. 1. Cardiology Branch, National Heart, Lung, and Blood Institute, Bethesda, MD 20892. Seminars in Nuclear Medicine, 01 Jul 1991, 21(3): 230-241 ...

Although thallium 201 imaging may be of value in detecting viable myocardium if regions with perfusion defects during exercise demonstrate redistribution of thallium on a 3- to 4-hour resting image, thallium defects often appear persistently "fixed" within regions of severely ischemic or hibernating myocardium.

imaging with thallium-201, Eur J Nucl Med, 13 (1988) 527. 22 Mishra K P, Cell membrane oxidative damage induced by 3 Iida H & Eberl S, Quantitative assessment of regional gamma-radiation and apoptotic sensitivity, J Env Path Tox myocardial blood flow with thallium-201 and SPECT, J Nucl Oncol, 23 (2004) 60.

Variability of myocardial perfusion defects assessed by thallium-201 scintigraphy in patients with coronary artery disease not amenable to angioplasty …

Thallium - 201 Data Sheet Page 1 of 4 Revision Date: 09/20/18 Thallium - 201 Radiological Safety Guidance Revision Date : 09/20/18 ... 3.0E-8 uCi/mL (all compounds) Applicable to the assessment and control of dose to the public (10 CFR 20.1302). If this concentration were inhaled continuously for over one year the resulting TEDE would be 50 ...

Thallium-201 scintigraphy for the assessment of long-term prognosis in patients with osteosarcoma. Anri Inaki 1, Junichi Taki 1, Hiroshi Wakabayashi 1, Hisashi Sumiya 1, Yoh Zen 2, Hiroyuki Tsuchiya 3 & Seigo Kinuya 1 Annals of Nuclear Medicine volume 26, pages 545–550 (2012)Cite this article

All patients underwent thallium-201 (201 Tl) MPS with either exercise stress tests or pharmacological stress tests, and stress/redistribution rest images were acquired. In the exercise stress tests, graded exercise was given according to a predetermined standardized incremental exercise protocol and patients underwent a symptom-limited ...

Thallium-201 gated single-photon emission tomography for the assessment of left ventricular ejection fraction and regional wall motion abnormalities in comparison with two-dimensional echocardiography. Bacher-Stier C(1), Müller S, Pachinger O, Strolz S, Erler H, Moncayo R, Wenger M, Donnemiller E, Riccabona G.

In the patient group assessed for defect reversibility, in zones with no previous myocardial infarction, segmental agreement for defect type between rest …

Thallium 201 for Assessment of Myocardial Viability Robert O. Bonow and Vasken Dilsizian Left ventricular (LV) performance is reduced in a large subset of patients with chronic coronary artery dis- ease (CAD) and LV dysfunction on the basis of region- ally ischemic or hibernating myocardium rather than irreversibly infarcted tissue.

Vertical left ventricular angulation assessed by thallium 201 myocardial perfusion imaging in patients with mitral valve prolapse. Arora RR, Horowitz SF, Machac J, Goldman ME. Mitral valve prolapse has been associated with septal to aortic root angle abnormalities determined by echocardiography.

thallium [thal´e-um] a chemical element, atomic number 81, atomic weight 204.37, symbol Tl. (See Appendix 6.) Its salts are active poisons that may cause alopecia, liver and kidney damage, blindness, and neurologic and psychic symptoms such as ataxia, restlessness, delirium, hallucinations, delusions, and semicoma. thallium 201 a radioactive isotope of ...

Dobutamine Thallium-201 SPECT Imaging for Assessment of Peri-Infarction and Remote Myocardial Ischemia

Bonow RO, Dilsizian V. Thallium 201 for assessment of myocardial viability.Sem Nucl Med 21: 230–241, 1991. Article CAS Google Scholar 13. Iskandrian AS. Thallium reinjection imaging: the search for an optimal protocol.J Nucl Med 34: 743–746, 1993. PubMed CAS Google Scholar 14.

Intracoronary thallium-201 assessment of thrombolysis in acute myocardial infarction: Validation of the method of imaging before and after therapy J. Anthony Parker, Gary V. Heller, Kenneth J. Silverman, Chris C. Campbell, John E. Markis, Henry D. Royal, Sven Paulin, Gerald M. Kolodny

Redistribution thallium-201 imaging 2 to 4 h after exercise may be incomplete and therefore may be inadequate to fully assess myocardial variability. Late redistribution imaging 24 h after exercise has been proposed to overcome this limitation of thallium stress imaging. However, because of …

Thallium-201 is an analog of potassium, which does not collect in the myocardium permanently. It is used by the myocardium during contraction. Thallium-201 is constantly being pumped in and out of the myocardial cells, and this phenomenon makes 201 Tl an ideal agent to assess the extent of CAD and determine the viability of affected myocardium.

Abstract. Thirty-six patients were assessed by thallium-201 myocardial imaging before and after aortocoronary bypass operations and the results were compared with evaluation based on symptomatic assessment, exercise testing, and electrocardiography.

Variability of myocardial perfusion defects assessed by thallium-201 scintigraphy in patients with coronary artery disease not amenable to angioplasty or bypass surgery. Daniel Burkhoff, James W. Jones, Lewis C. Becker. School of Medicine; Research output: Contribution to journal › …

The retention of 201 Tl is an active process that is a function of cell viability and cell membrane activity as well as blood flow. Therefore, in theory, 201 Tl should be taken up and retained by viable myocardium regardless of whether systolic function is preserved. Thus, regional thallium activity, even in asynergic regions, should be an ...

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prognostic value of submaximal exercise thallium- 201 stress testing after interventional therapy. Thallium-201 has been used via the intracoronary route for the early assessment of salvaged myo- cardium.4s 5 The early distribution of thallium-201 in reperfused myocardium has been shown to be prin-

Sequential multivessel coronary angioplasty assessed by thallium-201 tomography. DePuey EG 1, Roubin GS, DePasquale EE, Nody AC, Garcia EV, King SB, Berger HJ. Author information. Affiliations. 1 author. 1. Department of Radiology, Emory University School of Medicine, Atlanta, GA 30322. ...

Impact of thallium‐201 imaging on clinical assessment and management of patients with chest pain Impact of thallium‐201 imaging on clinical assessment and management of patients with chest pain Schmoliner, R.; Dudczak, R.; Kronic, G.; Mösslacher, H.; Zangeneh, M.; Pollak, C.; Schurz, B.; Schoberwalter, A. 00:00:00 First Medical Department, …

Uptake of thallium (Tl)-201 in the lungs has been proposed as a measure of left ventricular dysfunction. In this study we were interested in pursuing two goals: 1) to assess possible relationships between the post-exercise Tl-201 lung-heart (LH-) ratio determined from the anterior view during SPECT-acquisition, myocardial ischemia and the extent of coronary artery …

THALLIUM PROPERTIES, UPTAKE, AND DISTRIBUTION. 201 Tl decays by electron capture to 201 Hg, which emits x-rays primarily at 68–80 keV but also γ-rays at 137 and 167 keV with a mean percentage per disintegration of 94.5%, 3%, and 10%, respectively (). 201 Tl has a half-life of 73.1 h. Thallium is transported across the myocyte membrane by the Na + K + adenosine …

To date, targeted delivery of thallium-201 to cancer cells has been hindered to date due to lack of suitable bifunctional chelator chemistry. Here, work will be carried out to create a novel targeted thallium-201 radiopharmaceuticals, by creating and using recently explored chelators for stable binding of thallium-201 to cancer-targeting compounds.

Thallium-201 myocardialimagingin assessment ofresults ofaortocoronary bypasssurgery Table la Symptoms, exercise duration, coronary arteriography, andgrafts Angina (NYHA) Exercise duration (min) Case no. Age (y) Preop Postop Preop Postop Coronary stenosis >50% Bypassgrafts 1 M 42 2 1 16 155 LADDgCxR LADDgR 2 M 59 2 1 10-5 12 LMLADOMR LADDgR

@article{osti_7154171, title = {Assessment by dipyridamole-thallium-201 myocardial scintigraphy of coronary risk before peripheral vascular surgery}, author = {Sachs, R N and Tellier, P and Larmignat, P and Azorin, J and Fischbein, L and Beaudet, B and Cadilhac, P and Cupa, M and De Saint Florent, G and Vulpillat, M}, abstractNote = {From October 1983 to January …

Thallium-201 is a cyclotron-produced radionuclide that decays by electron capture, with a half-life of about 73 hours. On decay, the major emissions are characteristic x-rays of the daughter product, mercury-201 ( 201 Hg), with an energy range of 69 to 81 keV. These are the primary photons used in myocardial imaging.

Assessment by Thallium-201 of Hindlimb . Muscle Blood Flow in Rats during Recovery . after Hindlimb Unloading. P LEIADES T IHARU I NAOKA. 1), R YOHEI A MANO. 2), S HOJI T ANAKA. 1), K ATSUHIKO T ...

contraction. Thallium-201 is constantly being pumped in and out of the myocardial cells, and this phenomenon makes 201Tl an ideal agent to assess the extent of CAD and determine the viability of affected myocardium. Unlike 201Tl, 99mTc-sestamibi has little or no redistribution, which provides significant flexibility in terms of imaging ( 5,6).

Beta-methyl-15-P-[123I] iodophenyl-pentadecanoic acid and thallium-201 in the assessment of myocardial perfusion defects. Hudon MP(1), Lyster DM, Jamieson WR, Qayumi AK, Sartori C, Dougan H. Author information: (1)Department of Radiology, University of …

Request PDF | Thallium-201 SPECT in prognostic assessment of malignant gliomas treated with postoperative radiotherapy | This study was designed to …

William E. Hurford, Karen E. Lynch, H. William Strauss, Edward Lowenstein, Warren M. Zapol; Myocardial Perfusion as Assessed by Thallium-201 Scintigraphy during the Discontinuation of Mechanical Ventilation in Ventilator-dependent Patients.