Key result
Stress testing during myocardial perfusion scintigraphy is linked to ~0.5 more hypoperfused segments vs rest.
Why the study?
Perfusion tomoscintigraphy provides three-dimensional imaging of left ventricular perfusion distribution and allows more precise differentiation of silent myocardial ischemia, but further study is needed to evaluate its diagnostic utility.
Observational
No
Does not support routine clinical use of tomoscintigraphy for silent ischemia; leaves open its diagnostic role pending prospective validation.
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ABDRAKHMANOVA et al. (2020) conducted an observational in Silent myocardial ischemia. Stress test during myocardial perfusion scintigraphy vs. Resting state was evaluated on Mean number of myocardial segments with hypoperfusion (p=<0.05). Stress testing during myocardial perfusion scintigraphy significantly increased the identified number of segments with hypoperfusion from 10.6 at rest to 11.06 (p<0.05).
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