שאלה משלב א׳ ברפואה גרעינית · מועד 2020, שאלה 90

Correct: D — the intensity of 99mTc-DPD uptake correlates negatively with left ventricular function, so the brighter the cardiac uptake the worse the ventricular performance. Option A is wrong because the agent here is DPD, a bone-seeking diphosphonate used specifically for amyloid, rather than a routine MDP bone scan; option B is wrong because grade 2–3 cardiac uptake is a true finding, not an artefact; option C is wrong because this pattern indicates transthyretin rather than light-chain amyloidosis, the distinction being critical since light-chain disease must be excluded with serum and urine studies.

מקור: Mettler-Ziessman p. p.496-497