Nuclear medicine Doses and Distribution Exam Study Guide Graded A 2024

liver imaging - sulfur colloid 4-6 mci image 10-15 min HIDA - TC mebrofenin 1-5 mci Disofenin 10 mci if bilirubin levels are high Flow 60 min or longer Meckle's diverticulum - 10-15 mci pertechnetate GI bleed - 20-50mci RBC intermittent bleed active bleed- sulfur colloid Labeled RBC visualization - liver,spleen, abdominal vessels, kidneys, bladder, genital organs, stomach Hemangioma imaging - Tc Labeled RBC 20-50 mci gastroesophageal reflux disease (GERD) - Tc sulfur colloid 300uci-1 mci Gastric empty scan - Tc sulfur colloid solid 500uci- 1 mci In-111 pentetate liquid phase Leveen shunt patency - Tc-SC or MAA 1-2 mci Schilling Test - co-57 cyanocobalamin ( Vitamin B-12) C-14 urea breath test - 1 mci C-14 urea capsule Lung perfusion - Tc-MAA 1-4 mci lung ventilation - Xe-133 gas 5-20 mci Tc Pentetate DTPA 25-35 mci Venography - Tc-MAA 6 mci Tc-RBC 20-30 mci Bone scan - TC MDP or HDP 20-30 mci PET Bone scan - F-18 NaF 5-10 mci Free pertechnetate concentrates in the? - Thyroid, salivary glands, and stomach Fever of unknown origin (FUO) - Ga-67 citrate 4-6 mci In-111 WBC.3-1 mci Tc-HMPAO WBC 5-10 mci F-18 FDG 10-20 mci Bone marrow - Sulfur colloid 10mci In-111 Leukocyte labeling normal distribution - - Intense activity in the spleen, liver, and bone marrow - Extravasation may result in a false- negative - Damage to WBC can be avoided by injecting slowly through a large gauge needle - tracer of choice when imaging the abdomen Normal distribution of Ga-67 citrate - intense liver uptake, nasopharynx, lacrimal/ salivary glands, Bony thorax bones, kidneys up to 48 hrs, colon, and pelvis - after 48 hrs kidney activity indicates disease - Barium studies should scheduled after Ga scan Lymphoma - Ga-67 5-10 mci PSMA imaging - In-111 Capromab Pendetide 5 mci Somatostatin Neuroendocrine Tumor imaging - In-111 Pentetreotide 6mci Somatostatin Lung nodule imaging - Tc- Depreotide 15-20 mci Carcinoembryonic antigen (CEA) and adenocarcinoma imaging - Tc- Arcitumomab 25-30 mci Scintimammography - tc 99m sestamibi 20-30 mci