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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Can J Cardiol. 2016 May 13;32(9):1166.e1–1166.e10. doi: 10.1016/j.cjca.2016.05.008

Figure 3. Semiquantitative and Quantitative analysis of 99mTc-PYP Myocardial Uptake.

Figure 3

Semiquantitative visual cardiac score was assigned 0-3 according to the scale detailed (A). The representative image demonstrates a visual cardiac score of 3. Quantitative heart-to-contralateral (H/CL) ratio was calculated by drawing a region of interest (ROI) over the heart, copying and mirroring it to the contralateral chest, and calculating the ratio of heart ROI mean counts to contralateral ROI mean counts (B). The representative image demonstrates H/CL ratio 40/15=2.67.