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FIGURE 8. Case example from our laboratory shows concordant left circumflex territory perfusion defects on CMR and MPS. Short-axis perfusion images acquired during adenosine (left) and at rest (right) using first-pass CMR (top) and dual-isotope MPS (bottom) are shown. CMR images acquired during pharmacologic vasodilation revealed reduced image intensity in anterolateral wall (arrow) that was not present on rest CMR. Similarly, MPS tomograms at same short-axis level, obtained after sestamibi injection during the same adenosine stress as used for CMR, also revealed a reversible perfusion defect in anterolateral wall (arrow).
