Penumbra
Category Edge Effect Term Penumbra Definition of Penumbra Region Of Partial Shadow At Object Edges Due To Finite Focal Spot Size Notes About Penumbra Contributes To Apparent Edge Blurring
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Autonomous Driving
Category Application Term Autonomous Driving Definition of Autonomous Driving Self Driving Vehicles Using Perception, Planning, And Control To Navigate Roads Without Human Input Notes About Autonomous Driving Levels Of Autonomy Defined By SAE
Dosimetry Report
Category Documentation Term Dosimetry Report Definition of Dosimetry Report Formal Calculation And Documentation Of Radiation Dose Delivered To Patient Organs And Tumors Notes About Dosimetry Report Used For Treatment Planning And Regulatory Compliance
DEXA (Dual Energy X Ray Absorptiometry)
Category Bone Densitometry Term DEXA (Dual Energy X Ray Absorptiometry) Definition of DEXA (Dual Energy X Ray Absorptiometry) Low Dose X Ray Technique To Quantify Bone Mineral Density For Osteoporosis Assessment Notes About DEXA (Dual Energy X Ray Absorptiometry) Different From Plain Radiography
SUV Peak
Category Quantitative Metric Term SUV Peak Definition of SUV Peak Average SUV Within A Small Fixed Volume Around The Highest Uptake Area Notes About SUV Peak Proposed To Improve Reproducibility Over SUV Max
Dose Calibrator
Category Radiopharmacy Instrument Term Dose Calibrator Definition of Dose Calibrator Instrument Measuring Activity Of Radiopharmaceutical Doses Prior To Administration Notes About Dose Calibrator Requires Regular Calibration And Geometry Correction
Attenuation
Category Physics Term Attenuation Definition of Attenuation Loss of Ultrasound Energy as It Travels Through Tissue Due to Absorption and Scattering Notes About Attenuation Higher With Bone and Air
Sign In Log
Category Operational Tool Term Sign In Log Definition of Sign In Log Record Of Staff And Visitors Entering Controlled Areas For Security And Traceability Notes About Sign In Log Useful For Incident Investigation
Repetition Time (TR)
Category Sequence Parameter Term Repetition Time (TR) Definition of Repetition Time (TR) Time Between Successive Excitation Pulses Affecting T1 Weighting And Scan Time Notes About Repetition Time (TR) Short TR Increases T1 Weighting
Acoustic Window
Category Technique Term Acoustic Window Definition of Acoustic Window An Anatomic Route That Allows Optimal Transmission of the Ultrasound Beam to a Target Notes About Acoustic Window Liver Often Imaged Through Intercostal Windows