| ABC |
Aneurysmal bone cyst |
| ABER |
Abduction and external rotation |
| ABI |
Ankle-to-brachial index |
| ABPA |
Acute bronchopulmonary aspergillosis |
| ACE |
Angiotensin-converting enzyme |
| ACS |
American Cancer Society |
| ADH |
Antidiuretic hormone |
| ADPKD |
Autosomal dominant polycystic kidney disease |
| AFP |
alpha-Fetoprotein |
| AICA |
Anterior inferior cerebellar artery |
| ALARA |
As low as reasonably achievable |
| ALH |
Atypical lobular hyperplasia |
| ALS |
Amyotrophic lateral sclerosis |
| AP |
Anteroposterior (view) |
| APGAR |
Appearance (color), pulse (heart rate), grimace (reflex irritability), activity (muscle tone), and respiration |
| ARDS |
Adult respiratory distress syndrome |
| ARVC |
Arrhythmogenic right ventricular cardiomyopathy |
| AS |
Ankylosing spondylitis |
| ASD |
Atrial septal defect |
| AV |
Arteriovenous (fistula) |
| AVM |
Arteriovenous malformation |
| ß-hCG |
(3-Human chorionic gonadotropin |
| BIRADS |
Breast Imaging Reporting and Dictation System |
| BPD |
Bronchopulmonary dysplasia |
| BPH |
Benign prostatic hypertrophy |
| BPP |
Biophysical profile |
| Bq |
Becquerel |
| BSE |
Breast self-examination |
| BUN |
Blood urea nitrogen |
| BUS |
Breast ultrasound |
| C-11 |
Carbon 11 |
| CAD |
Coronary artery disease |
| CBD |
Common bile duct |
| CBE |
Clinical breast examination |
| CC |
Craniocaudal (view) |
| CCK |
Cholecystokinin |
| CEMRA |
Contrast-enhanced magnetic resonance angiography |
| CF |
Cystic fibrosis |
| CHD |
Congenital heart disease |
| CHF |
Congestive heart failure |
| Ci |
Curie |
| CMV |
Cytomegalovirus |
| CNB |
Core needle biopsy |
| Co-57 |
Cobalt 57 |
| COP |
Cryptogenic organizing pneumonia |
| CPPS |
Calcium pyrophosphate deposition disease |
| CRL |
Crown–rump length |
| CRT |
Cathode ray tube |
| CSF |
Cerebrospinal fluid |
| CSP |
Corrected sinusoidal pressure |
| CT |
Computed tomography |
| CTA |
Computed tomography angiogram |
| CTPA |
Computed tomographic pulmonary angiogram |
| CRPS |
Ccomplex regional pain syndrome |
| CSP |
Central venous pressure |
| CXR |
Chest x-ray (radiograph) |
| 2DE |
Two-dimensional echocardiography |
| DCBE |
Double-contrast barium enema |
| DCIS |
Ductal carcinoma in situ |
| DDH |
Developmental dysplasia of the hip |
| DES |
Diethylstilbestrol |
| DEXA |
Dual-energy x-ray absorptiometry |
| DHE |
Delayed hyperenhancement |
| DIC |
Disseminated intravascular coagulation |
| DISI |
Dorsal intercalary segment instability |
| DISIDA |
Diisopropyl iminodiacetic acid |
| DJD |
Degenerative joint disease |
| DMSA |
Dimercaptosuccinic acid |
| DSA |
Digital subtraction angiography |
| DTPA |
Diethylenetriamine penta-acetic acid |
| DVT |
Deep venous thrombosis |
| DWI |
Diffusion-weighted (magnetic resonance) imaging |
| EBCT |
Electron beam computed tomography |
| ECG |
Electrocardiogram |
| ED |
Emergency department |
| EGD |
End-diastolic volume |
| EF |
Ejection fraction |
| EGD |
Estimated gestational age |
| EGD |
Esophagogastroduodenoscopy |
| EM |
Electromagnetic |
| ER |
Estrogen receptor |
| ERCP |
Endoscopic retrograde cholangiopancreatography |
| ESR |
Erythrocyte sedimentation rate |
| ESV |
End-systolic volume |
| ESWL |
Extracorporeal shock wave lithotripsy |
| EV |
Endovaginal |
| f |
Frequency |
| F-18 |
Fluorine 18 |
| FBS |
Failed back syndrome |
| FDA |
Food and Drug Administration |
| FDG |
Fluoro-2-deoxy-D-glucose |
| FLAIR |
Fluid-attenuated inversion recovery |
| FMD |
Fibromuscular dysplasia |
| FNA |
Fine-needle aspiration |
| FNH |
Focal nodular hyperplasia |
| FOV |
Field of view |
| Fr |
French |
| FSE |
Fast spin echo |
| Ga-67 |
Gallium 67 |
| GAG |
Glycosaminoglycan |
| GBM |
Glioblastoma multiforme |
| Gd |
Gadolinium |
| Gd-DTPA |
Gadolinium–diethylenetriamine penta-acetic acid |
| GERD |
Gastroesophageal reflux disease |
| GFR |
Glomerular filtration rate |
| GH |
Glucoheptonate |
| GRE |
Gradient-recalled echo |
| HCC |
Hepatocellular carcinoma |
| HIDA |
Hydroxy iminodiacetic acid |
| HIE |
Hypoxic ischemic injury |
| HIV |
Human immunodeficiency virus |
| HRCT |
High-resolution computed tomography |
| HRT |
Hormone replacement therapy |
| HSG |
Hysterosalpingogram |
| HSV |
Herpes simplex virus |
| HU |
Hounsfield units |
| Hz |
Hertz |
| I-123 |
Iodine 123 |
| I-131 |
Iodine 131 |
| ICP |
Intracranial pressure |
| ICU |
Intensive care unit |
| IC |
Inner diameter |
| IDA |
Iminodiacetic acid |
| IDC |
Invasive ductal carcinoma |
| Ig |
Immunoglobulin |
| ILC |
Invasive lobular carcinoma |
| IMA |
Inferior mesenteric artery |
| IPMT |
Intraductal papillary mucinous tumor |
| In-111 |
Indium 111 |
| IPF |
Idiopathic pulmonary fibrosis |
| IR |
Inversion recovery |
| IUGR |
Intrauterine growth retardation |
| IUP |
Intrauterine pregnancy |
| IV |
Intravenous |
| IVC |
Inferior vena cava |
| IVP |
Intravenous pyelogram |
| JPA |
Juvenile pilocystic astrocytoma |
| JRA |
Juvenile rheumatoid arthritis |
| keV |
Kiloelectron volt (=1,000 eV) |
| KUB |
Kidneys, ureters, bladder |
| Kv |
Kilovoltage |
| kVp |
Peak kilovoltage |
| LAD |
Linear attenuation coefficient |
| LAO |
Left anterior oblique (view) |
| LCIS |
Lobular carcinoma in situ |
| LLL |
Left lower lobe |
| LMP |
Last menstrual period |
| lp/mm |
Line pairs per millimeter |
| LRV |
Left renal vein |
| LUL |
Left upper lobe |
| LVP |
Left ventricular (systolic) pressure |
| MAA |
Macroaggregated albumin |
| MAG3 |
Mercaptylacetyltriglycine |
| mAs |
Milliamperage-seconds |
| mCi |
Millicurie |
| MCDK |
Multicystic dysplatic kidney |
| MDCT |
Multidetector computed tomography |
| MDP |
Methyl diphosphonate |
| MEN-I |
Multiple endocrine neoplasia type I |
| MEN-II |
Multiple endocrine neoplasia type II |
| MeV |
Megaelectron volt (=1,000,000 eV) |
| MHz |
Megahertz |
| MI |
Myocardial infarction |
| MIBG |
Metaiodobenzylguanidine |
| ML |
Mediolateral (view) |
| MLCN |
Multilocular cystic nephroma |
| MLO |
Mediolateral oblique (view) |
| MO |
Myositis ossificans |
| MQSA |
Mammography Quality Standards Act |
| MRA |
Magnetic resonance angiogram |
| MRCP |
Magnetic resonance cholangiopancreatography |
| MRI |
Magnetic resonance imaging |
| MRPA |
Magnetic resonance pulmonary arteriogram |
| MRV |
Magnetic resonance venogram |
| mSv |
Millisievert |
| MTS |
Mesial temporal sclerosis |
| MUGA |
Multiple-gated equilibrium radionucleotide cineangiography |
| MVC |
Motor vehicle collision |
| N-10 |
Nitrogen 10 |
| NOF |
Nonossifying fibroma |
| NOMI |
Non-occlusive mesenteric ischemia |
| NPR |
Nothing by mouth (nulla per os) |
| NPV |
Negative predictive value |
| NTD |
Neural tube defect |
| NSF |
Nephrogenic systemic fibrosis |
| O-15 |
Oxygen 15 |
| OCD |
Osteochondritis dissecans |
| OCI |
Osteitis condensans ilii |
| OD |
Outer diameter |
| OMC |
Osteomeatal complex |
| P1/2 |
Pressure half-time |
| PA |
Posteroanterior (view) |
| PACS |
Picture archiving and communications system |
| PAN |
Polyarteritis nodosa |
| PAO2 |
Arterial oxygen tension |
| PAPVR |
Partial anomalous pulmonary venous return |
| PCA |
Posterior cerebral artery |
| PCKD |
Polycystic kidney disease |
| PCOM |
Posterior communicating artery |
| PCP |
Pneumocystis cariniipneumonia |
| PCWC |
Pulmonary capillary wedge pressure |
| PD |
Patent ductus arteriosus |
| PE |
Pulmonary embolus |
| PICA |
Posterior inferior cerebellar artery |
| PICC |
Peripherally introduced central catheter |
| PID |
Pelvic inflammatory disease |
| PIE |
Pulmonary interstitial emphysema |
| PIOPED |
Prospective investigation of pulmonary embolism diagnosis |
| PNL |
Posterior nipple line |
| PPV |
Positive predictive value |
| PSA |
Prostate-specific antigen |
| PSC |
Primary sclerosing cholangitis |
| PSIR |
Phase-sensitive inversion recovery |
| PT |
Prothrombin time |
| PTA |
Percutaneous transluminal angioplasty |
| PTC |
Percutaneous transhepatic cholangiography |
| PTFE |
Polytetrafluoroethylene |
| PTH |
Parathyroid hormone |
| PTT |
Partial thromboplastin time |
| PVA |
Polyvinyl alcohol |
| PVd |
Peak velocity at diastole |
| PVD |
Peripheral vascular disease |
| PVL |
Periventricular leukomalacia |
| PVNS |
Pigmented villonodular synovitis |
| PVR |
Pulse volume recording |
| PVs |
Peak velocity at systole |
| RAO |
Right anterior oblique (view) |
| Rb-82 |
Rubidium 82 |
| RBC |
Red blood cell |
| RCC |
Renal cell carcinoma |
| RDS |
Respiratory distress syndrome |
| RI |
Resistive index |
| RLL |
Right lower lobe |
| RLQ |
Right lower quadrant |
| RML |
Right middle lobe |
| RSV |
Respiratory syncytial virus |
| rTPA |
Recombinant tissue plasminogen activator |
| RUG |
Retrograde urethrogram |
| RUL |
Right upper lobe |
| RUQ |
Right upper quadrant |
| RVOT |
Right ventricular outflow tract |
| RVP |
Right ventricular systolic pressure |
| S:N |
Signal-to-background noise ratio |
| SAH |
Subarachnoid hemorrhage |
| SBFT |
Small bowel follow-through (study) |
| SC |
Sulfur colloid |
| SCFE |
Slipped capital femoral epiphysis |
| SD |
Standard deviation |
| SHG |
Sonohysterogram |
| SIADH |
Syndrome of inappropriate antidiuretic hormone secretion |
| SID |
Source-to-image distance |
| SLAP |
Superior labrum anterior posterior (view) |
| SLE |
Systemic lupus erythematosus |
| SMA |
Superior mesenteric artery |
| SMV |
Superior mesenteric vein |
| SONK |
Spontaneous osteonecrosis of the knee |
| SPECT |
Single-photon emission computed tomography |
| SSFP |
Steady-state free precession |
| STIR |
Short-tau inversion recovery |
| SUV |
Standard uptake value |
| SVC |
Superior vena cava |
| TAPVR |
Total anomalous pulmonary venous return |
| TB |
Tuberculosis |
| Tc-99m |
Technetium 99m |
| TCA |
Tricarboxylic acid cycle |
| TDLU |
Terminal duct lobular unit |
| TE |
Time to echo |
| TEE |
Transesophageal echocardiography |
| TIPS |
Transjugular intrahepatic portosystemic shunt |
| Tl-201 |
Thallium 201 |
| TNM |
Tumor, nodal involvement, metastases |
| TOF |
Time-of-flight |
| TPN |
Total parenteral nutrition |
| TR |
Repetition time |
| TTE |
Transthoracic echocardiography |
| TTN |
Transient tachypnea of the newborn |
| TURP |
Transurethral prostatectomy |
| UAC |
Umbilical artery catheter |
| UPJ |
Ureteropelvic junction |
| US |
Ultrasound |
| UTI |
Urinary tract infection |
| UVC |
Umbilical vein catheter |
| UVJ |
Ureterovesical junction |
| v |
Velocity |
| VUC |
Voiding cystourethrography |
| VSI |
Volar intercalary segment instability |
| V:Q |
Ventilation–perfusion |
| VSD |
Ventricular septal defect |
| VUR |
Vesicoureteral reflux |
| WBC |
White blood cell |
| XCCL |
Exaggerated craniocaudal lateral (view) |
| X-133 |
Xenon 133 |
| XGPN |
Xanthogranulomatous pyelonephritis |