Figure 5.

Serial short-axis and vertical long-axis slices of stress-rest ^99mTc-N-DBODC5 images (b) and stress-rest ^99mTc-MIBI images (c) of a representative patient with normal CA (a). Because of intense uptake of technetium ^99mTc-MIBI in the liver, high liver background activity can be observed. Furthermore, a false-positive myocardial perfusion defect was also seen in the inferoposterior wall segments supplied by the RCA territory (white arrows). Importantly, however, at stress and rest, the inferoposterior wall segments of ^99mTc-N-DBODC5 images are clearly separated from the subdiaphragmatic activity.