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Figure 1 Multiple Contrast CMRI of the Same Short-Axis View Using Different TI Acquired Beginning at 4 Min After Contrast Injection

At inversion time (TI) = 80 ms, all structures are below the null point and appear gray on the image. At TI = 120 ms, a large portion of the subendocardial left ventricular (LV) myocardium (white arrows) goes through the null point earlier than the LV cavity, which crosses the null point at a TI of 200 ms (white circle). Because this region (subendocardial circumference and right ventricle) is obviously not a coronary artery distribution territory, this area is highly likely to represent myocardial disease such as cardiac amyloid (high signal at 240 ms). The myocardium surrounding this region is likely to be normal, as it is nulled at a TI of 240 ms (white arrows in black framed image). CMRI = cardiovascular magnetic resonance imaging.