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![Clinical application of cardiac scintigraphy with bone tracers: controversies and pitfalls in cardiac amyloidosis](https://image.oaes.cc/14e4596d-83fc-421f-ac7d-a7f275c4166d/4521.fig.5.jpg)
Figure 5. Technetium-99m pyrophosphate bone scan (A) 1 h planar images show mild tracer uptake on the cardiac area in two different patients; and (B) single photon emission computed tomography/computed tomography shows tracer uptake only in the cardiac chambers consistent for blood pool.