Medical Physics Glossary

AAPM - American Association of Physicists in Medicine

ABR - American Board of Radiology

ACR - American College of Radiology

ADCL - Accredited Dosimetry Calibration Laboratory

AE Title - Application Entity Title - DICOM

AFS - Automatic Field Sequencing

AMFPI - Active Matrix Flat Panel Imager

ANOVA - ANalysis Of VAriance

APS - American Physical Society

ARRA - Arizona Radiation Regulatory Agency

ASTRO - American Society for Therapeutic Radiology and Oncology

ATP - Acceptance Testing Procedure

AVI - Advanced Visual Interface

AVM - ArterioVenous Malformation

Az - Area under curve (ROC)

BAT - B-mode Acquisition and Targeting (Nomos, Ultrasound positioning)

BED - Biological Equivalent Dose

BEIR - Biological Effects of Ionizing Radiation

BEV - Beams Eye View, Billion Electron Volts

BID - Bis In Die (Latin - twice a day)

BNCT - Boron Neutron Capture Therapy

BNCS - Boron Neutron Capture Synovectomy

BOLD - Blood Oxygenation Level Dependent imaging

AP - Anterior Posterior

CAC - Center for Advanced Computing

CAD - Computer Aided Diagnosis

CAMPEP - Commission on Accreditation of Medical Physics Education Programs

CAT - Computerized Axial Tomography

CCD - Charge Coupled Device

CGE - Cobalt Grey Equivalent

CI - Confidence Interval

CIAO - Complete Irradiation Area Outline

CMS - Centers for Medicare and medicaid Services

CNS - Central Nervous System

CR - Computed Radiography

CRS - Cut Reference System (UMPLAN)

CSDA - Continuous Slowing Down Approximation

CSI - Cranio Spinal Irradiation (radiotherapy) or Chemical Shift Imaging (MRI)

CT - Computerized Tomography (CAT Scan)

CTDI - CT Dose Index

CTV - Clinical Tumor Volume (GTV <= CTV <= PTV)

CUP - Cancer of Unknown Primary

DCIS - Ductal Carcinoma In Situ

DDF - Distal Dose Falloff (protons)

DFS - Disease Free Survival

DIBH - Deep Inspriation Breath Hold

DICOM - Digital Imaging and Communications in Medicine

DMLC - Dynamic Multi Leaf Collimation

DMPO - Direct Machine Parameter Optimization

DNR - Diffusion to Noise Ratio

DPM - Dose Planning Method

DQA - Delivery Quality Assurance

DRR - Digitally Reconstructed Radiograph

DRS - Dataset Reference System (UMPLAN)

DSB - Double Strand Breaks (DNA)

DVH - Dose Volume Historgram

Dx - Diagnosis

EBT - Electron Beam Tomography

EDW - Enhanced Dynamic Wedge

EGF - Epidermal Growth Factor

EGS - Electron Gamma Shower

EPID - Electronic Portal Imaging Device

EUD - Equivalent Uniform Dose

FDD - Field Depth Dose

FDG - Fluoro-Deoxy_Glucose

FISH - Fluorescence In Situ Hybridization

FOA - Funding Opportunity Announcement

FOV - Field Of View

fMRI - functional Magnetic Resonance Imaging

GATE - GEANT4 Application for Tomography Emission

GEPRC - Graduate Education Program Review Committee

GTV - Gross Tumor Volume (GTV <= CTV <= PTV)

GNU - Gnu is Not Unix

HD(Curve) - Hunter and Driffield (Film Dosimetry)

HDR - High Dose Rate

HIPAA - Health Insurance Portability and Accountability Act

HR - Hazard Ratio

HTML - Hyper Text Markup Language

HVL - Half Value Layer

Hx - Medical History

IAEA - International Atomic Energy Agency

IBA - Ion Beam Application

ICRU - International Commission on Radiation Units

IDL - IsoDose Line

IGF - Insulin Growth Factor

IRB - Internal Review Board

IMRT - Intensity Modulated Radiation Therapy

JCAHO - Joint Commission on the Accreditation of Health Care Organizations

KPS - Karnofsky Performance Status

LAN - Local Area Network

LAO - Left Anterior Oblique

LCModel - Linear Combination of Model Spectra (MRS)

LDR - Low Dose Rate

LET - Linear Energy Transfer

LOR - Line Of Response (PET)

LPO - Left Posterior Oblique

LSF - Line Spread Function

LTLF - Laser Target Localizer Frame

MCS - Multiple Coulomb Scattering

MeV - Million electron Volts

MFP - Mean Free Path

MHU - Millions of Heat Units (anode heating/cooling)

MIGA - Multiple Instance Geometry Approximation

MIRD - Medical Internal Radiation Dose

MIS - Mechanical Isocenter Standard

MIP - Maximum Intensity Projection

MLC - Multi Leaf Collimator

MLIC - Muli Layered Ion Chamber

MPD - Mid Plane Depth

MRI - Magnetic Resonance Imaging

MST - Median Survival Time

MTF - Modulation Transfer Function

MU - Monitor Units

MUT - Monitor Unit Time (from Co treatment)

MV - Mega Volts

NCI - National Cancer Institute

NCRP - National Council on Radiation Protection and Measurements

NFS - Neurological Function Score

NIH - National Institute of Health

NOS - Not Otherwise Specified

NPS - Noise Power Spectrum

NRC - Nuclear Regulatory Commission

NRPS - Numerical Rating Pain Scale

NSCLC - Non Small Cell Lung Cancer

NTCP - Normal Tissue Complication Probability

OAR - Organ At Risk, Off Axis Ratio

OBI - On Board Imaging

ODM - Opening Density Matrix

OR - Odds Ratio

PA - Posterior Anterior

PAB - Para-Aortic Boost, Post Axilliary Boost

PACS - Picture Archiving and Communications Systems

PAR - Program Announcement Reviewed

PBS - Pencil Beam Scan

PDD - Percent Depth Dose

PET - Positron Emission Tomography

PFS - Progression Free Survival

PFN - Pulse Forming Network

PLM - Proton Loss Model

PPG - Program Project Grant

PRISMA - Preferred Preporting Items for Systematic reviews and Meta-Analyses

PSA - Patient Support Assembly, Prostate Specific Antigen

PSF - Point Spread Function

PTV - Planning Tumor Volume (GTV <= CTV <= PTV)

QA - Quality Assurance

QARC - Quality Assurance Review Center

QC - Quality Control

QDE - Quantum Detection Efficiency

QID - Quarter In Die (Latin - four times a day)

QOD - Every Other Day

RAO - Right Anterior Oblique

RBE - Relative Biological Effectiveness

rCBV - regional Cerebral Blood Volume

RECIST - Response Evaluation Criteria In Solid Tumors

RIT - RadioImmunoTherapy

RLPP - RectiLinear Phantom Pointer

ROC - Receiver Operating Characteristics

RPC - Radiological Physics Center

RPM - Real-time Position Management

RPO - Right Posterior Oblique

RR - Relative Risk

RSO - Radiation Safety Officer

RTF - Radiological Therapy Facilities

RTOG - Radiation Therapy and Oncology Group

RTP - Radiation Treatment Planning

RV - Record and Verify

Rx - Prescription

SAD - Source to Axis Distance

SBIR - Small Business Innovation Research

SDD - Source to Detector Distance

SEER - Surveillance Epidemiology and End Results

SF - Surviving Fraction

SFD - Source to Film Distance, Source to Focus Distance

SFOV - Scan Field Of View

SMPTE - Society of Motion Picture and Television Engineers

SNR - Signal to Noise Ratio

SOBP - Spread Out Bragg Peak

S/P - Status Post (e.g., s/p lumpectomy)

SPECT - Single Photon Emission Computed Tomography

SRC - Scientific Review Committee

SRS - Stereotactic RadioSurgery

SSD - Source to Surface Distance

STTR - Small business Technology TRansfer

SWOG - SouthWest Oncology Group

SUV - Standard Uptake Value (unit-less number)

TAPO - TArget Positioner Overlay

TAR - Tissue Air Ratio

TBI - Total Body Irradiation

TCP - Tumor Control Probability

TCP/IP - Transmission Control Protocol/Internet Protocol

TD5/5 - Toxic Dose (5% after 5 years)

TG51 - Task Group 51

TID - Ter In Die (Latin - three times a day)

TLD - Thermo Luminescent Dosimeter

TLI - Total Lymph Irradiation

TMR - Tissue Maximum Ratio

TPR - Tissue Phantom Ratio

TRS - Treatment Reference System (UMPLAN)

TRUS - Trans Rectal Ultra Sound

TSET - Total Skin Electron Treatment

TUNEL - Terminal deoxynucleotidyl transferase biotin-dUtp Nick End Labeling

Tx - Treatment

US - Uniform Scanning

VEGF - Vascular Endothelial Growth Factor

VMAT - Volumetric Modulated Arc Therapy

WAN - Wide Area Network

WET - Water Equivalent Thickness

Note: If an error is detected in this list, please notify Lars Ewell: