NMTCB PET EXAM REVIEW 2023 WITH COMPLETE SOLUTION

NMTCB PET EXAM REVIEW 2023 WITH COMPLETE SOLUTION Mixed Attentuation - Answer ️️ -Malignant Pulmonary Nodules on CT are characterized by: Reed-Sternberg Cells - Answer ️️ -Hodkin's Lymphoma is separated from other Lymphomas by the presence of: Acetylecholinestrearse Inhibitors N-methyl-D-aspartate receptor antagonists - Answer ️️ -Two types of Alzheimer's mediciation: Left Subclavian Vein - Answer ️️ -Lymphatic Drainage for most of the body is via: Erythropoietin - Answer ️️ -Hormone made in kidney's that signals the bone marrow to make more RBCs: Renal Cancer - Answer ️️ -Affects woman 65 Renal Cell carcinomas mostly Wilm's Tumor (pediatric) covered under guidlines Pancreatic Cancer - Answer ️️ -Most begins in ducts Spreads to peritoneum, liver, lungs Imaging neck to pelvis Covered under CMS NCD Portal Vein and Hepatic Artery - Answer ️️ -The Liver primarily receives blood from: Gastric Cancer - Answer ️️ -Men 65 Cardia, fundus, corpus, antrum, pylorus Imaging Neck to Lower Pelvis Five layers; mucosa, submucosa, muscularis, subserosa, serosa Cells of Cajal - Answer ️️ -Pacemaker of GI Tract Staging, Restaging, Monitoring response to theraphy - Answer ️️ -Breast Cancer CMS coverage Initial or Subsequent treatment strategy - Answer ️️ -Lung Cancer CMS coverage Non-Small Cell -More Common -Spreads slowly -Bone, Liver, Brain, Adrenal Glands Small Cell -Rapid Growth - Answer ️️ -Two major types of Lung Cancer: Esophageal Cancer - Answer ️️ -Affects men more than women 65 years Squamous cell and mucinoid Neck to pelvis imaging Esophageal Cancer coverage - Answer ️️ -Initial Treatment, restaging, response to therapy, recurrance Thalamus - Answer ️️ -Brain structure described as "sensory relay" Lipophilicity - Answer ️️ -Physiochemical property of a PET tracer that decides it's ability to enter the brain and label the target receptor or enzyme: F-18 Flurpiridaz - Answer ️️ -Binds to mitochondrial complex 1 Used for myocardial perfusion imaging Nucleophillic Substitution and Purification Performed similar to Tc-99m Rest/Stress Negatrons and Positrons - Answer ️️ -Beta particles are electrons that contain _____________ and ____________. Electron Capture or Positron decay - Answer ️️ -Proton rich nuclei decay either by _____________ or ______________ . 1/3 ex: F-18 Max = 635 KeV Mean = 210 KeV - Answer ️️ -Mean energy of an ejected positron is about ___________ of the max energy. Decrease Resolution - Answer ️️ -Longer range of travel for a positron before annihilation will ___________ resolution. Positron emitted from atom w/ high kin. energy Slows, combines w/ electron Forms postironium briefly, spin Mass is converted to energy, release two 511 KeV photons - Answer ️️ -Annihilation Reaction 2 mm 0.25 degree deviation - Answer ️️ -Non-colinearity results in blurring effect on clinical PET scanners of approximately _____ mm and angle of _____ deviation from 180. Gas-Filled Anode and Cathode Operates at Low Voltage - Answer ️️ -Ionization chamber is a ____________ detector w/ a ______________ and ______________ . National Institute of Standards and Technology ( NIST) - Answer ️️ -Ionization chamber is calibrated annually using a _____________ source so that exposure rate a given distance is known. Geiger-Muller - Answer ️️ -Gas-Filled (noble gases) High Voltage Secondary Ionization --- Townsend Avalanche = high sensitivity Sinogram - Answer ️️ -A 2D projection space representation of a transaxial image X-axis sinogram - Answer ️️ -Represents shift on LOR from the center of the gantry Y-axis sinogram - Answer ️️ -Represents projection angle of LOR Ring Artifact - Answer ️️ -CT artifact caused by a faulty