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Fig. 2B —71-year-old man with pulmonary emphysema. R=right. As seen in image
sets of coronal and sagittal SPECT, SPECT/CT fusion, and CT, DIBrH SPECT
improves SPECT/CT matching of lung base and diaphragmatic contours compared
with non-breath-hold SPECT (arrows). Image sets of DIBrH SPECT also
show excellent matching of perfusion defects and peripheral bullous changes on
CT. Although extensive peripheral defects are not well recognized on DIBrH
SPECT alone, fusion images confirm these defects by delineating outer boundary
of lungs on coregistered CT.
