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Figure 2 Examples of the Superiority of 3-T Imaging When Compared to 1.5-T
Patient #1 (top row) has a 70% stenosis of the left anterior descending (LAD) coronary artery. Whereas 3-Tesla (T) imaging demonstrates a corresponding stress perfusion deficit in the anteroseptal segment, visual assessment of the 1.5-T scan failed to delineate a deficit. Patient #2 (bottom row) had significant multivessel coronary artery disease (left system not shown). Although 1.5-T imaging demonstrates a perfusion deficit of the anterior segment (white arrow), corresponding to a LAD coronary stenosis, it fails to identify a perfusion deficit relating to the 90% stenosis in the right coronary artery. The 3-T imaging detects reversible perfusion deficits in the anterior, anteroseptal, inferoseptal, and inferior segments (white arrows), corresponding to significant stenoses in the left anterior descending and right coronary arteries.
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