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Figure 4 Magnetic resonance tagging in a normal volunteer (A) and in a patient with an acute anterior MI (B), with corresponding PET study (C). A and B, Magnetic resonance tagging study. Horizontal long-axis view (top) and vertical long-axis view (bottom). Five tag lines are parallelly oriented in the short-axis direction and equally spread over the LV. Note the differences in apical sphericity between the control subjects and patients with an anterior MI. C, Positron emission tomographic study. Data are represented in bull’s eyes: 13NH3 map (left) and 18FDG map (right). The middle of the bull’s eye corresponds to the LV apex, whereas the periphery corresponds to the LV base. The anterior wall is above, the lateral wall to the right, the inferior wall below and the LV septum to the left of the bull’s eye. A reduction in flow or metabolism is represented as a dark area. Note the severe reduction in flow and metabolism in the anteroapical region extending to the septum.
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