Original ArticlesPrediction of severe coronary artery disease and long-term outcome in patients undergoing vasodilator SPECT
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Relationship of technetium-99m tetrofosmin-gated rest single-photon emission computed tomography myocardial perfusion imaging to death and hospitalization in heart failure patients: Results from the nuclear ancillary study of the HF-ACTION trial
2011, American Heart JournalCitation Excerpt :This study demonstrated a nonsignificant relationship between mortality and cardiovascular hospitalization in those with more severe dyssynchrony despite a trend over the 2-year follow-up period. The ability of gated SPECT imaging to provide prognostic information above and beyond clinical information has been well established.11,37,45-49 In this study, gated SPECT variables more than doubled the prognostic power of baseline clinical information.
The diagnostic utility of heart rate-corrected ST-segment depression during adenosine nuclear stress testing
2010, Journal of ElectrocardiologyCitation Excerpt :Only 2 of 5 had abnormal conventional ST depression, whereas 4 of 5 had an abnormal ST/HR index. Conventional ST depression during adenosine stress testing has a high positive predictive accuracy for significant CAD but is uncommon, generally occurring in from 3% to 24% of vasodilator stress studies with interpretable ECGs for ischemia.1-9 This range is likely due to the differing prevalence and severity of disease in these populations.
Coronary Artery Disease Detection: Pharmacologic Stress SPECT. Pharmacologic Stress SPECT.
2010, Clinical Nuclear Cardiology: State of the Art and Future DirectionsCoronary artery disease detection: Pharmacologic stress SPECT
2010, Clinical Nuclear CardiologyOutcome of Patients With Adenosine-Induced ST-Segment Depression But With Normal Perfusion on Tomographic Imaging
2006, American Journal of CardiologyCitation Excerpt :The presence of intercoronary collateral vessels by coronary angiography has been taken as evidence for steal.10,11 The high positive predictive value of ST response during adenosine infusion12,13 has raised the concern that balanced ischemia might be the reason behind the normal images, and that such patients should be considered at high risk. There are 2 studies in support of this hypothesis.5,6
Identifying high-risk asymptomatic diabetic patients who are candidates for screening stress single-photon emission computed tomography imaging
2005, Journal of the American College of CardiologyCitation Excerpt :A high-risk scan is an indication to proceed with coronary angiography (19). Sixty-one percent of patients with a high-risk scan who underwent coronary angiography had high-risk anatomy, consistent with other studies in broader patient populations (13,15,20). Patients predicted to be at high risk by SPECT imaging did in fact have a high annual mortality rate of 5.9%.