The patient received an intravenous injection of 22.6 mCi of technetium 99m pyrophosphate. Following a three-hour delay, a 5-minute planar anterior view study was acquired. SPECT cardiac imaging with CT attenuation correction.
The SPECT study shows focal uptake of radiotracer in all left ventricular segments. There is mild right ventricular uptake. Myocardial uptake of technetium pyrophosphate in the left and right ventricles consistent with ATTR-amyloid heart disease.