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Figure 1 Examples of Coronary Flow Velocity Recordings and Corresponding LGE Images of Patients Without and With the Presence of Microvascular Injury
The coronary flow velocity spectrum (A) of Patient #1 shows antegrade systolic flow without early systolic retrograde flow (SRF) and a normal diastolic deceleration time (DDT). A corresponding short-axis late gadolinium-enhanced (LGE) image (B) shows transmurally infarcted myocardium (white arrows) in the anteroseptal wall without signs of microvascular injury. The flow velocity pattern (C) of Patient #2 demonstrates SRF followed by rapid deceleration of the diastolic flow, resulting in a high diastolic deceleration rate and short DDT. In the short-axis LGE image (D), the transmurally infarcted myocardium (white arrows) was complicated by an important area with microvascular injury (black arrows). LAD = left anterior descending coronary artery.
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