Key result
Reversible SPECT perfusion defect correlates with a mid-LAD myocardial bridge on cardiac CT.
Why the study?
Myocardial bridging is commonly considered benign but can have hazardous clinical complications requiring evaluation with imaging modalities.
Case Report (n=1)
No
This case highlights the utility of multimodality imaging (SPECT MPI and Cardiac CT) in identifying and correlating functional ischemia with the anatomical presence of myocardial bridging.
May warrant MB evaluation in select ischemia cases; leaves open need for prospective outcome studies.
Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) is generally used to evaluate myocardial ischemia in patients with known or suspected coronary artery disease.Cardiac CT, on the other hand, enables non-invasive visualization of the coronary vessels.Myocardial bridging (MB) is a congenital anomaly characterized by an intramyocardial route of a coronary artery.It is commonly considered benign and rarely requires further evaluation or intervention.However, its clinical complications can be hazardous.We report a patient whose SPECT MPI study demonstrated a mild reversible perfusion defect at the apical anterior segment of the left ventricle that was later attributed to MB visualized on cardiac CT.
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Rohani et al. (2019) conducted a case report in Myocardial bridging (n=1). Myocardial perfusion imaging (SPECT) and Cardiac CT was evaluated on Correlation between functional perfusion defect and anatomical anomaly. A mild reversible perfusion defect on SPECT myocardial perfusion imaging correlated with a 2-cm-long superficial myocardial bridge in the mid-left anterior descending artery visualized on cardiac CT.
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