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Fig. 1 | BMC Medical Imaging

Fig. 1

From: Direct comparison of diagnostic and clinical values between Tc-99 m DPD and Tc-99 m PYP scintigraphy in patients with cardiac amyloidosis

Fig. 1

ROI drawing methods for heart retention ratios. (a) WB profile, heart, kidney, bladder, and pelvis ROIs were drawn manually. In addition, the skull ROI was drawn using a rectangular ROI. H/WBp, H/P, and H/S ratios were calculated using these ROIs. (b) To calculate the H/CL ratio, heart and contralateral lung ROIs were drawn using simplified circular ROIs

Abbreviations: ROI, region of interest; WB, whole-body; H/WBp, heart/whole-body profile ratio; H/P, heart/pelvis ratio; H/S, heart/skull ratio; H/CL, heart/contralateral lung ratio

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BMC Medical Imaging

ISSN: 1471-2342

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