Of men ≥45 years of age, 45% had an abnormal exercise ECG, thallium scan, or both In contrast, only 3% of women <45 years of age had an abnormal test result Although abnormal exercise ECGs and thallium scans were both predictive of future clinical CHD, the thallium scan was associated with a higher relative risk...
Aug 01, 1980· To determine the clinical significance of increased thallium-201 activity in the lung immediately after exercise stress, the thallium-201 scans in 227 patients undergoing cardiac catheterization were reviewed...
stopping exercise were extreme generalized fatigue, increas ing angina or shortness of breath, serious ventricular ar rhythmias or a decrease in the systolic blood pressure of 10 mm Hg or more below that of the preceding exercise stage or baseline level Symptoms manifested during exercise were noted Thallium-201, 15 to 2 mCi, was ....
Oct 01, 1999· Europe PMC is an archive of life sciences journal literature Long-term additive prognostic value of thallium-201 myocardial perfusion imaging over clinical and exercise stress test in low to intermediate risk patients : study in 1137 patients with 6-year follow-up...
Mar 01, 1981· • To determine whether normal exercise images can reduce the need for coronary arteriography, we analyzed our data on 102 patients with normal thallium 201 exercise images who underwent coronary arteriographic studi Eighty-two patients ,...
This study was designed to assess the contribution of clinical, electrocardiographic and exercise hemodynamic variables to the prediction of normalization on resting reinjection scintigraphy of persistent thallium-201 (201Tl) myocardial perfusion defects seen with exercise and 2- to 4-hour delayed (redistribution) imaging...
@article{osti_7016341, title = {Use of electrocardiographic-thallium exercise testing in clinical practice}, author = {Gitler, B and Fishbach, M and Steingart, R M}, abstractNote = {Although there is a great deal of data on the accuracy of combined electrocardiographic-thallium exercise testing, little is known about the use of these tests in clinical practice...
@article{osti_6782040, title = {Exercise testing and thallium-201 myocardial perfusion scintigraphy in the clinical evaluation of patients with Wolff Parkinson White syndrome}, author = {Poyatos, M E and Suarez, L and Lerman, J and Guibourg, H and Camps, J and Perosio, A}, abstractNote = {In 58 patients with Wolff Parkinson White syndrome (WPW), we performed exercise stress testing in order to ....
To determine the clinical significance of increased thallium-201 activity in the lung immediately after exercise stress, the thallium-201 scans in 227 patients ,...
Background The availability of clinical information often influences the interpretation of diagnostic imaging information Methods and Results In this study we examined the impact of such data on interpretation of exercise thallium scans and the differences in analysis of such information between radiologists and clinicians Two hundred thirty-seven exercise tolerance test-thallium scans (122 ....
Apr 01, 1993· The prognostic value of thallium-201 imaging in patients with unstable angina is not well established Forty consecutive patients with unstable angina,...
Rest and exercise thallium-201 scintigraphy (201 Tl stress test), 90% submaximal treadmill exercise test (ECG stress test), and coronary angiography were performed on 49 patients with suspected coronary artery diseaseWhen technically unsatisfactory and uninterpretable scintiphotos were excluded, the sensitivity (true positives/true positives + false negatives) of the 201 Tl stress test in ....
Of men ≥45 years of age, 45% had an abnormal exercise ECG, thallium scan, or both In contrast, only 3% of women <45 years of age had an abnormal test result Although abnormal exercise ECGs and thallium scans were both predictive of future clinical CHD, the thallium scan was associated with a higher relative risk...
When all clinical, exercise, thallium-201, and catheterization variables were analyzed by Cox regression analysis, the number of diseased vessels (when defined as ≥ 50% luminal diameter narrowing) was the single most important predictor of future cardiac events (χ 2 = 381) followed by the number of segments demonstrating redistribution on ....
Of the clinical, exercise, angiographic and thallium scan variables analyzed by stepwise logistic regression, postangioplasty gradient greater than 20 mm Hg predicted clinical events and treatment events, and the number of segments with slower thallium clearance predicted clinical events, treatment events and restenosis...
clinical data, however, are available to assess the 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- cardium4s 5 The early distribution of thallium-201 in...
Nov 23, 2006· Introduction The precise clinical utility of lung 201Tl uptake in exercise SPECT myocardial perfusion imaging remains open to research This study validates an optimal index for lung 201Tl uptake measurement and assesses its value in the prediction of higher-risk coronary artery disease (CAD) Method Three hundred and ninety-eight patients underwent exercise SPECT myocardial ,...
A reversible thallium perfusion deficit demonstrated 6 months after medical therapy or coronary angioplasty is a valuable prognostic marker in patients with angiographically documented single- and double-vessel disease and is superior to exercise electrocardiography in this regard...
• To determine whether normal exercise images can reduce the need for coronary arteriography, we analyzed our data on 102 patients with normal thallium 201 exercise images who underwent coronary arteriographic studi Eighty-two patients had normal or insignificant coronary artery disease; 20....
A reversible thallium perfusion deficit demonstrated 6 months after medical therapy or coronary angioplasty is a valuable prognostic marker in patients with angiographically documented single- and double-vessel disease and is superior to exercise electrocardiography in this regard...
Feb 01, 1984· Although there is a great deal of data on the accuracy of combined electrocardiographic-thallium exercise testing, little is known about the use of these tests in clinical practice A quantitative likelihood system was employed to characterize referral patterns for such testing, and the impact of test results on the likelihood of coronary ....
To determine the physiologic impact of two-vessel coronary artery disease and its effect on prognosis, a series of clinical, angiographic, exercise and quantitative thallium-201 (Tl-201) imaging parameters were analyzed in 85 consecutive two-vessel coronary artery disease patients followed for 52 ± 27 months after coronary angiography and Tl-201 scintigraphy...
OSTIGOV Journal Article: Prognostic value of computer-quantitated exercise thallium imaging early after percutaneous transluminal coronary angioplasty Prognostic value of computer-quantitated exercise thallium imaging early after percutaneous transluminal coronary angioplasty...
Eighty-one patients with diagnostically difficult clinical presentations suggesting coronary disease underwent symptom-limited maximal-exercise treadmill testing (ETT) and exercise radionuclide scanning with thallium-201 Results of these tests were in agreement in only 47 percent of the cas Either exercise thallium or ETT was positive in 94 percent of patients with disease...
Thallium-201 scintigraphy after dipyridamole infusion with low-level exercise III Clinical significance and additional diagnostic value of ST segment depression and ,...
Stress thallium-201 scanning proved to be a highly sensitive and specific screening procedure for myocardial ischemia in 52 consecutive cases with coronary arteriograms Stress thallium-201 scanning was considerably more accurate and more specific than the exercise electrocardiogram (ECG) as evidenced by a sensitivity of 83% compared to 55% ....
The present study confirms that in patients with no prior myocardial infarction, imaging with thallium and exercise improves detection of CAD over the clinical assessment (presence of typical angina) and exercise electrocardiography Quantifying the thallium ,...
Objectiv In this study, we assessed the utility of exercise thallium-201 scintigraphy and other clinical factors in predicting perioperative cardiac complications in patients undergoing elective vascular surgery Background The risk of cardiac complications among such patients is very high Methods...
Apr 01, 1998· Background: The prognostic value of exercise thallium-201 imaging has been well established in referral patient populations at tertiary care centers, but these results may be influenced by referral biasMethods: This study was performed to evaluate the prognostic value of thallium imaging in a community-based population of 446 residents of Olmsted County, Minn Eleven variables were ....
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Exercise thallium tomography predicts future clinically , - Know More
Of men ≥45 years of age, 45% had an abnormal exercise ECG, thallium scan, or both In contrast, only 3% of women <45 years of age had an abnormal test result Although abnormal exercise ECGs and thallium scans were both predictive of future clinical CHD, the thallium scan was associated with a higher relative risk...
Increased lung uptake of thallium-201 during exercise , - Know More
Aug 01, 1980· To determine the clinical significance of increased thallium-201 activity in the lung immediately after exercise stress, the thallium-201 scans in 227 patients undergoing cardiac catheterization were reviewed...
Use of electrocardiographic-thallium exercise testing in , - Know More
stopping exercise were extreme generalized fatigue, increas ing angina or shortness of breath, serious ventricular ar rhythmias or a decrease in the systolic blood pressure of 10 mm Hg or more below that of the preceding exercise stage or baseline level Symptoms manifested during exercise were noted Thallium-201, 15 to 2 mCi, was ....
Long-term additive prognostic value of thallium-201 , - Know More
Oct 01, 1999· Europe PMC is an archive of life sciences journal literature Long-term additive prognostic value of thallium-201 myocardial perfusion imaging over clinical and exercise stress test in low to intermediate risk patients : study in 1137 patients with 6-year follow-up...
Exercise Thallium Tomography Predicts Future Clinically , - Know More
Mar 01, 1981· • To determine whether normal exercise images can reduce the need for coronary arteriography, we analyzed our data on 102 patients with normal thallium 201 exercise images who underwent coronary arteriographic studi Eighty-two patients ,...
Persistent thallium-201 defect: can clinical , - Know More
This study was designed to assess the contribution of clinical, electrocardiographic and exercise hemodynamic variables to the prediction of normalization on resting reinjection scintigraphy of persistent thallium-201 (201Tl) myocardial perfusion defects seen with exercise and 2- to 4-hour delayed (redistribution) imaging...
Use of electrocardiographic-thallium exercise testing in , - Know More
@article{osti_7016341, title = {Use of electrocardiographic-thallium exercise testing in clinical practice}, author = {Gitler, B and Fishbach, M and Steingart, R M}, abstractNote = {Although there is a great deal of data on the accuracy of combined electrocardiographic-thallium exercise testing, little is known about the use of these tests in clinical practice...
Exercise testing and thallium-201 myocardial perfusion , - Know More
@article{osti_6782040, title = {Exercise testing and thallium-201 myocardial perfusion scintigraphy in the clinical evaluation of patients with Wolff Parkinson White syndrome}, author = {Poyatos, M E and Suarez, L and Lerman, J and Guibourg, H and Camps, J and Perosio, A}, abstractNote = {In 58 patients with Wolff Parkinson White syndrome (WPW), we performed exercise stress testing in order to ....
Increased lung uptake of thallium-201 during exercise , - Know More
To determine the clinical significance of increased thallium-201 activity in the lung immediately after exercise stress, the thallium-201 scans in 227 patients ,...
The impact of clinical data on interpretation of thallium , - Know More
Background The availability of clinical information often influences the interpretation of diagnostic imaging information Methods and Results In this study we examined the impact of such data on interpretation of exercise thallium scans and the differences in analysis of such information between radiologists and clinicians Two hundred thirty-seven exercise tolerance test-thallium scans (122 ....
Prognostic significance of exercise thallium-201 , - Know More
Apr 01, 1993· The prognostic value of thallium-201 imaging in patients with unstable angina is not well established Forty consecutive patients with unstable angina,...
Clinical value of the thallium-201 stress test sensitivity , - Know More
Rest and exercise thallium-201 scintigraphy (201 Tl stress test), 90% submaximal treadmill exercise test (ECG stress test), and coronary angiography were performed on 49 patients with suspected coronary artery diseaseWhen technically unsatisfactory and uninterpretable scintiphotos were excluded, the sensitivity (true positives/true positives + false negatives) of the 201 Tl stress test in ....
Exercise thallium tomography predicts future clinically , - Know More
Of men ≥45 years of age, 45% had an abnormal exercise ECG, thallium scan, or both In contrast, only 3% of women <45 years of age had an abnormal test result Although abnormal exercise ECGs and thallium scans were both predictive of future clinical CHD, the thallium scan was associated with a higher relative risk...
Prognostic utility of the exercise thallium-201 test in , - Know More
When all clinical, exercise, thallium-201, and catheterization variables were analyzed by Cox regression analysis, the number of diseased vessels (when defined as ≥ 50% luminal diameter narrowing) was the single most important predictor of future cardiac events (χ 2 = 381) followed by the number of segments demonstrating redistribution on ....
Prognostic value of computer-quantitated exercise thallium , - Know More
Of the clinical, exercise, angiographic and thallium scan variables analyzed by stepwise logistic regression, postangioplasty gradient greater than 20 mm Hg predicted clinical events and treatment events, and the number of segments with slower thallium clearance predicted clinical events, treatment events and restenosis...
Submaximal exercise thallium-201 SPECT for - Know More
clinical data, however, are available to assess the 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- cardium4s 5 The early distribution of thallium-201 in...
Identification of advanced coronary artery disease with , - Know More
Nov 23, 2006· Introduction The precise clinical utility of lung 201Tl uptake in exercise SPECT myocardial perfusion imaging remains open to research This study validates an optimal index for lung 201Tl uptake measurement and assesses its value in the prediction of higher-risk coronary artery disease (CAD) Method Three hundred and ninety-eight patients underwent exercise SPECT myocardial ,...
Evaluation of exercise thallium scintigraphy versus , - Know More
A reversible thallium perfusion deficit demonstrated 6 months after medical therapy or coronary angioplasty is a valuable prognostic marker in patients with angiographically documented single- and double-vessel disease and is superior to exercise electrocardiography in this regard...
Exercise Thallium 201 Imaging Clinical Implications of , - Know More
• To determine whether normal exercise images can reduce the need for coronary arteriography, we analyzed our data on 102 patients with normal thallium 201 exercise images who underwent coronary arteriographic studi Eighty-two patients had normal or insignificant coronary artery disease; 20....
Evaluation of exercise thallium scintigraphy versus , - Know More
A reversible thallium perfusion deficit demonstrated 6 months after medical therapy or coronary angioplasty is a valuable prognostic marker in patients with angiographically documented single- and double-vessel disease and is superior to exercise electrocardiography in this regard...
Use of electrocardiographic-thallium exercise testing in , - Know More
Feb 01, 1984· Although there is a great deal of data on the accuracy of combined electrocardiographic-thallium exercise testing, little is known about the use of these tests in clinical practice A quantitative likelihood system was employed to characterize referral patterns for such testing, and the impact of test results on the likelihood of coronary ....
Increased exercise thallium-201 lung uptake: A noninvasive , - Know More
To determine the physiologic impact of two-vessel coronary artery disease and its effect on prognosis, a series of clinical, angiographic, exercise and quantitative thallium-201 (Tl-201) imaging parameters were analyzed in 85 consecutive two-vessel coronary artery disease patients followed for 52 ± 27 months after coronary angiography and Tl-201 scintigraphy...
Prognostic value of computer-quantitated exercise thallium , - Know More
OSTIGOV Journal Article: Prognostic value of computer-quantitated exercise thallium imaging early after percutaneous transluminal coronary angioplasty Prognostic value of computer-quantitated exercise thallium imaging early after percutaneous transluminal coronary angioplasty...
Discordance of Exercise Thallium Testing with Coronary , - Know More
Eighty-one patients with diagnostically difficult clinical presentations suggesting coronary disease underwent symptom-limited maximal-exercise treadmill testing (ETT) and exercise radionuclide scanning with thallium-201 Results of these tests were in agreement in only 47 percent of the cas Either exercise thallium or ETT was positive in 94 percent of patients with disease...
(PDF) Thallium-201 scintigraphy after dipyridamole , - Know More
Thallium-201 scintigraphy after dipyridamole infusion with low-level exercise III Clinical significance and additional diagnostic value of ST segment depression and ,...
Exercise thallium 201 imaging Clinical implications of , - Know More
Mar 01, 1981· Exercise thallium 201 imaging Clinical implications of normal exercise imag Iskandrian AS, Haaz W, Segal BL Archives of Internal Medicine, 01 Mar 1981, 141(4): 501-503 DOI: 101001/archinte1414501 PMID: 7212892 Share this article Share with email Share with twitter Share with linkedin Share ....
Reliability of stress thallium-201 scanning in the , - Know More
Stress thallium-201 scanning proved to be a highly sensitive and specific screening procedure for myocardial ischemia in 52 consecutive cases with coronary arteriograms Stress thallium-201 scanning was considerably more accurate and more specific than the exercise electrocardiogram (ECG) as evidenced by a sensitivity of 83% compared to 55% ....
Value of computer analysis of exercise thallium images in , - Know More
The present study confirms that in patients with no prior myocardial infarction, imaging with thallium and exercise improves detection of CAD over the clinical assessment (presence of typical angina) and exercise electrocardiography Quantifying the thallium ,...
Angina and persistent exercise thallium defects , - Know More
Objectiv In this study, we assessed the utility of exercise thallium-201 scintigraphy and other clinical factors in predicting perioperative cardiac complications in patients undergoing elective vascular surgery Background The risk of cardiac complications among such patients is very high Methods...
Prognostic value of exercise thallium-201 imaging in a , - Know More
Apr 01, 1998· Background: The prognostic value of exercise thallium-201 imaging has been well established in referral patient populations at tertiary care centers, but these results may be influenced by referral biasMethods: This study was performed to evaluate the prognostic value of thallium imaging in a community-based population of 446 residents of Olmsted County, Minn Eleven variables were ....
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