Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, Volume 28, Issue 6, 30 5 2021, Pages 2497-2499 Optimizing <sup>99m</sup>Tc-DPD scintigraphy: Adding value to the diagnosis and treatment of cardiac transthyretin amyloidosis. Stassen J, van der Bijl P, Bax JJ