Thallium-201 scintigraphy in the evaluation of graft …

The object of this study was to evaluate graft dysfunction utilizing thallium-201 scintigraphy in patients who had undergone lung transplantation. We studied 11 patients who had undergone single-lung transplantation and had 44 evaluations for suspected graft dysfunction. All evaluations included a lung thallium-201 scan and chest radiography. In …

Thallium myocardial scintigraphy and its use in the …

The availability of noninvasive thallium-201 scintigraphy has added to the physician's ability to accurately diagnose CAD, to objectively evaluate the effects of coronary artery …

Applying preoperative dipyridamole thallium-201 scintigraphy …

Dipyridamole thallium-201 scintigraphy provides a non-invasive, early, rapid diagnosis for CAD, and several series had concluded that preoperative dipyridamole 201 thallium-201 scintigraphy was useful for predicting and preventing perioperative cardiac events. 34, 35 In the population undergoing dialysis, asymptomatic CAD is very …

Thallium-201 scintigraphy | Radiology Reference Article

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Thallium-201

WEBThallium-201 is a radiopharmaceutical agent used in the diagnosis of coronary artery disease and parathyroid hyperactivity. …

Thallium 201 Myocardial Imaging

Thallium is a potassium analogue that has been used to study cellular lesions in myocardial tissue, a tissue with a high potassium content. Using radioactive thallium, (thallium 201) for this purpose has been made possible by ingenious (and expensive) technologic developments. As the excellent report by Melin et al. makes evident, myocardial ...

Thallium-201 myocardial scintigraphy

CURRICULUM IN CARDIOLOGY Thallium-201 myocardial scintigraphy Abdulmassih S. Iskandrian, M.D., and A-Hamid Hakki, M.D. Philadelphia, Pa. The physician caring for patients with chest pain faces certain tasks: determining the presence or absence of significant coronary disease, the extent of coronary artery disease, and the risk, to …

Thallium 201 Myocardial Imaging

1. makes evident, myocardial scintiscans obtained with thallium 201 reflect two distinct processes: (1) blood flow and (2) the uptake of the thallium by myocardial cells, some of …

Reverse redistribution on exercise thallium scintigraphy

Conclusions: Reverse redistribution on tomographic thallium scintigraphy is a frequent phenomenon (occurring in 40% of patients following acute myocardial infarction) and is independent of thrombolytic therapy. Patients with reverse redistribution have a more widely patent infarct-related artery and similar ventricular function, but ...

The role of Thallium-201 scintigraphy and Tc-99m …

The aim of this study was to investigate the role of Thallium-201 scintigraphy and Technetium-99 m pentavalent dimercaptosuccinic acid (Tc-99 m DMSA (V)) in the diagnosis and grading of chondrosarcomas. Methods. 232 consecutive patients with pathologically proven cartilaginous tumours between the years 2000 and 2018 were …

Radiopharmaceutical Agents for Myocardial Perfusion Imaging

Physical Properties. Physical properties of the 3 RBFMs are shown in the Table.Thallium 201 is supplied as thallous chloride in isotonic solution with a concentration of 1 mCi/mL. 19 It is generated in a cyclotron and must be delivered from a radiopharmacy. This agent decays by electron capture to mercury Hg 201, and it is the lower-energy x …

Thallium-201 scintigraphy | Radiology Reference Article

Thallium-201 (Tl-201) is a radiopharmaceutical used for scintigraphy, primarily of the myocardium. The element thallium is treated by the body as an analog of potassium; it is produced in a cyclotron by bombarding thallium-203 with protons.. Characteristics. thallium is a monovalent cation. usually employed in the form of a …

Thallium-201 myocardial scintigraphy in acute

Thallium-201 scintigraphy provides a sensitive and reliable method of detecting acute myocardial infarction and ischemia when imaging is performed with understanding of the temporal characteristics and accuracy of the technique. The results of scintigraphy are related to the time interval between onset of symptoms and time of …

Clinical significance of thallium-201 scintigraphy in bone …

The thallium-201 chloride ( 201 Tl) accumulation in malignant tumors and benign lesions was statistically different. Sensitivity, specificity, and accuracy for 201 Tl scans in detecting malignant tumors was 94%, 65%, and 82%, respectively, for EI, and 94%, 85%, and 90%, respectively, for DI. On multivariate analysis, significant …

Myocardial Perfusion Scintigraphy: Techniques, …

Myocardial perfusion single photon emission-computed tomography (MPS) has been one of the most important and common non-invasive diagnostic cardiac test. Gated MPS provides simultaneous assessment of myocardial perfusion and function with only one study. With appropriate attention to the MPS techniques, appropriate clinical utilization …

Early detection of restenosis after successful percutaneous

The value of exercise testing and thallium scintigraphy in predicting recurrence of angina pectoris and restenosis after a primary successful transluminal coronary angioplasty (PTCA) was prospectively evaluated. In 89 patients, a symptom-limited exercise electrocardiogram (ECG) and thallium scintigraphy were performed 4 …

Thallium-201 myocardial scintigraphy in acute myocardial …

Abstract. Thallium-201 scintigraphy provides a sensitive and reliable method of detecting acute myocardial infarction and ischemia when imaging is performed with understanding of the temporal characteristics and accuracy of the technique. The results of scintigraphy are related to the time interval between onset of symptoms and time of imaging.

Dipyridamole is superior to dobutamine for thallium stress …

Dipyridamole thallium-201 scintigraphy: an excellent alternative to exercise scintigraphy. J Am Coll Cardiol. 1989 Dec; 14 (7):1642–1644. [Google Scholar] Leppo J, Boucher CA, Okada RD, Newell JB, Strauss HW, Pohost GM. Serial thallium-201 myocardial imaging after dipyridamole infusion: diagnostic utility in detecting coronary stenoses and ...

Clinical significance of thallium-201 scintigraphy in bone …

The purpose was to determine whether this technique could be used to ascertain accurately whether lesions were malignant or benign and to predict the response to chemotherapy. The thallium-201 chloride (201Tl) accumulation in malignant tumors and benign lesions was statistically different. Sensitivity, specificity, and accuracy for 201Tl scans ...

Thallium scintigraphy in patients with angina at rest.

Thallium scintigraphy was as predictive of the presence of coronary artery disease (91%) but was also highly sensitive (91%). The diagnostic contribution of the thallium scan was greatest in those patients with an inconclusive exercise …

Evaluation of thallium-201 exercise scintigraphy in coronary …

Bailey IK, Griffith LS, Rouleau J, Strauss W, Pitt B. Thallium-201 myocardial perfusion imaging at rest and during exercise. Comparative sensitivity to electrocardiography in coronary artery disease. ... A, Block P, Thiel EV, Lebedellr M, Becquevort P, Erbsmann F, Ermans A. Segmental analysis of Ti-201 stress myocardial scintigraphy. J Nucl Med ...

EANM procedural guidelines for myocardial perfusion scintigraphy …

An increasing number of Nuclear Medicine sites in Europe are using cardiac-centered gamma cameras for myocardial perfusion scintigraphy (MPS). Three cardiac-centered gamma cameras are currently the most frequently used in Europe: the D-SPECT (Spectrum Dynamics), the Alcyone (Discovery NM 530c and Discovery NM/CT 570c; …

Thallium reinjection demonstrates viable myocardium in …

The clinical significance and pathophysiological mechanisms of reverse redistribution on stress-redistribution thallium-201 myocardial scintigraphy in patients with chronic coronary artery disease are unclear. Recent studies have shown that thallium-201 reinjection is a useful technique for the detection of myocardial viability in chronic ...

Scintigraphy | definition of scintigraphy by Medical dictionary

scintigraphy. production of two-dimensional images of the distribution of radioactivity in tissues after internal administration of a radiopharmaceutical imaging agent, the images being obtained by a scintillation camera. adj., adj scintigraph´ic. exercise thallium scintigraphy myocardial perfusion using thallium 201 as a tracer and performed ...

Resting Thallium-201 Scintigraphy for Identifying …

Resting thallium-201 scintigraphy is less expensive, is easier to perform, and involves less risk than stress scintigraphy. CONCLUSION This …

Thallium-201-chloride scintigraphy in staging and …

1.. IntroductionScintigraphic imaging techniques, such as thallium-201-chloride scintigraphy (201 Tl-S), gallium-67-citrate scintigraphy and 18 F-deoxyglucose positron emission tomography (FDG-PET), play important roles in staging and monitoring treatment response in malignant lymphomas.Adequate staging results in a proper …

Thallium 201 Scintigraphy

Corne RA, Gotsman MS, Weiss A, Enlander D, s LD, Salomon JA, Warshaw B, Atlan H. Thallium-201 scintigraphy in diagnosis of coronary stenosis. Comparison with …

Value and Limitations of Thallium-201 Scintigraphy in the …

Abstract We examined the diagnostic usefulness of thallium-201 scintigraphy in 200 patients with acute myocardial infarction. The scintiscans showed a defect, suggesting infarction in 165. In all 4...

Clinical Utility of Thallium-201 Single Photon Emission …

Objective: To determine the diagnostic efficiency of thallium-201 single photon emission computed tomography (SPECT) and Epstein-Barr virus (EBV) …

Thallium Scintigraphy | SpringerLink

Abstract. It was thallium-201 which allowed the application of myocardial scintigraphy in clinical practice [1, 12, 13]. On the one hand, it was expected to supplement coronary angiography as to the microcirculation. On the other hand it was hoped that myocardial scintigraphy could be used as a screening procedure to select patients for ...

Space/time quantitation of thallium-201 myocardial scintigraphy

A comprehensive method is described for quantitation of the spatial distribution of TI-201 in the myocardium and its changes with time. The method, applied here to 51 patients, uses bilinear interpolative background subtraction to compensate for tissue crosstalk, and circumferential profiles to quan …