Information About Radiology
Category Renal Imaging Phase Term Nephrographic Phase Definition of Nephrographic Phase Intermediate Postcontrast Phase Optimized For Parenchymal Enhancement And Tumor Detection Notes About Nephrographic Phase Used In CT Urography
Category Fat Suppression Term Short Tau Inversion Recovery (STIR) Definition of Short Tau Inversion Recovery (STIR) IR Sequence With Short TI To Null Fat Signal For Musculoskeletal Imaging Notes About Short Tau Inversion Recovery (STIR) Useful For Edema Detection; Not Compatible With Gadolinium Timing
Category Advanced Display Term X Plane Imaging Definition of X Plane Imaging Simultaneous Orthogonal Plane Display Derived From A Single Acquisition Notes About X Plane Imaging Enhances Spatial Understanding
Category Practice Term Pediatric Protocols Definition of Pediatric Protocols Age Appropriate Sequences, Sedation Policies, And Coil Selection For Children Notes About Pediatric Protocols Minimize Scan Time And Use Child Friendly Techniques
Category Dosimetry Term Activity Definition of Activity Rate Of Nuclear Disintegrations Measured In Becquerels Or Curies Notes About Activity 1 Bq = 1 Disintegration Per Second
Category RNN Variant Term Long Short Term Memory (LSTM) Definition of Long Short Term Memory (LSTM) RNN Cell Designed To Capture Long Range Dependencies Using Gates Notes About Long Short Term Memory (LSTM) Widely Used For Speech And Sequence Modeling
Category Specialty Exam Term Orthopedic Radiography Definition of Orthopedic Radiography Radiographic Evaluation Of Bones And Joints For Fracture, Alignment, And Hardware Notes About Orthopedic Radiography Includes Trauma And Postoperative Imaging
Category Physics Term Frequency Definition of Frequency Number of Sound Wave Cycles Per Second Measured in Megahertz; Higher Frequency Gives Better Resolution but Less Depth Notes About Frequency Choose Probe Frequency by Depth of Target
Category High Energy Interaction Term Pair Production Definition of Pair Production Conversion Of Photon Energy Into Electron Positron Pair At Very High Photon Energies Notes About Pair Production Not Relevant In Diagnostic Radiography
Category Artifact Term Sedimentation Artifact Definition of Sedimentation Artifact Layering Of Particulate Material Within Fluid Causing Echogenic Interfaces Notes About Sedimentation Artifact Seen In Complex Effusions