Regional thallium uptake in irreversible defects. Magnitude of change in thallium activity after reinjection distinguishes viable from nonviable myocardium.
Why the study?
Does the magnitude of change in thallium activity after reinjection distinguish viable from nonviable myocardium in patients with coronary artery disease?
Population
150 patients with coronary artery disease
Design
Cross-sectional
Authors
Discussion
Loading...
Member takes
Implication
May distinguish viability in irreversible defects; leaves open outcome impact of reinjection protocols in CAD.
Structured PICO
Does the magnitude of change in thallium activity after reinjection distinguish viable from nonviable myocardium in patients with coronary artery disease?
P
Population
150 patients with coronary artery disease
I
Intervention
Exercise thallium tomography using the rest-reinjection protocol (stress, redistribution, and reinjection)
O
Outcome
Differential uptake (increase in regional thallium activity from redistribution to reinjection, normalized to the increase observed in a normal region)surrogate
The magnitude of thallium uptake after reinjection can distinguish viable from nonviable myocardium in regions with irreversible defects on standard redistribution images.
Cite This Study
Dilsizian et al. (1992) studied this question.