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https://www.selleckchem.com/products/cerdulatinib-prt062070-prt2070.html 001). We observed a higher uptake of NaF in the thoracic aorta and whole heart of myeloma patients in comparison to the matched control group. We observed a higher uptake of NaF in the thoracic aorta and whole heart of myeloma patients in comparison to the matched control group.A 68-year-old man with heart failure (left ventricular ejection fraction = 30%) and normal coronary angiography underwent bone scintigraphy for suspected transthyretin-related cardiac amyloidosis (CA).1 He received 532 MBq (14.3 mCi) Tc-99m hydroxy-methyl-diphosphonate (HMDP) and data were acquired 2 hours after injection. On anterior and posterior whole-body scans (Figure 1 A and B), diffuse cardiac, hepatic, and soft-tissue uptake of the radiotracer was seen, in association with low skeletal uptake. It was established that the patient had recently been hospitalized for heart failure exacerbation and had received an intravenous iron injection, which is a recommended treatment for heart failure.2 In consultation with our hospital's cardiology team, it was decided to repeat the bone scan at a time when the patient had received no recent iron infusion. Two months after the first bone scan, the patient received 556 MBq (15 mCi) of 99m-Tc HMDP, and no cardiac, hepatic, or soft-tissue uptake was detected (Figure 1C and D). Myocardial flow reserve (MFR) measurement provides incremental diagnostic and prognostic information. The objective of the current study was to investigate the application of a simplified model for the estimation of MFR using only the stress/rest myocardial activity ratio (MAR) in patients undergoing rest-stress cardiac PET MPI. Rest and dipyridamole stress dynamic PET imaging was performed in consecutive patients using Rb or NH (n = 250 each). Reference standard MFR was quantified using a standard one-tissue compartment model. Stress/rest myocardial activity ratio (MAR) was calculated using the LV-mean act

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