Abbreviations in Interventional Radiology

Numerical

18F-FDG = 18F-fluorodeoxyglucose

2D = Two-dimensional

3D = Three-dimensional

A

AAA = Abdominal aortic aneurysm
AASLD = American Association for the Study of Liver Diseases
ABI = Ankle-brachial index
ACA = Anterior cerebral artery
ACAS = Asymptomatic Carotid Atherosclerosis Trial
ACD = Advance care directives
ACE = Angiotensin-converting enzyme
ACLS = Advanced cardiac life support
ACR = American College of Radiology
ACT = Activated clotting time
ADC = Analog-to-digital converter
ADH = Antidiuretic hormone
ADP = Adenosine diphosphate
AE = Adverse events
AECD = Automatic external cardioverter-defibrillator
AF = Atrial fibrillation
AFB = Acid-fast bacilli
AFP = α-Fetoprotein
AGIH = Acute gastrointestinal hemorrhage
AHRQ = Agency for Healthcare Research and Quality
AK = Above-knee
ALS = Amyotrophic lateral sclerosis
AMFPI = Active matrix flat-panel imager
AMI = Acute mesenteric ischemia
AML = Angiomyolipoma
Ao = Aorta
AP = Anteroposterior
APD = All-purpose drainage

APF = Arterioportal fistula
APTT = Activated partial thromboplastin time
ARDS = Adult respiratory distress syndrome
ARNP = Advanced registered nurse practitioner
ASA = Acetylsalicylic acid
ASA = American Society of Anesthesiologists
ASD = Atrial septal defect
ASPECTS = Alberta Stroke Program early computed tomography scan
AT = Anterior tibial
ATIII = Antithrombin III
ATM = Atmospheres
AV = Arteriovenous
A-V = Atrioventricular
AVF = Arteriovenous fistula
AVG = Arteriovenous graft
AVM = Arteriovenous malformation
AVP = Amplatzer Vascular Plug

B

BAC = Bronchioloalveolar carcinoma
BAE = Bronchial artery embolization
BCLC = Barcelona Clinic Liver Cancer
BE = Balloon expandable
β hCG = Beta human chorionic gonadotropin hormone
BGC = Balloon-guiding catheter
bid = Two times per day
BIPAP = Bi-level positive airway pressure
BLS = Basic life support
BMI = Body mass index
BMS = Bare-metal stents
BMT = Bone marrow transplant
BOT = Balloon occlusion tolerance
BP = Blood pressure
BPH = Benign prostatic hyperplasia

BRTO = Balloon-occluded retrograde transvenous obliteration
BTK = Below-the-knee
BUN = Blood urea nitrogen
BW = Bandwidth

C

CABG = Coronary artery bypass graft
CAD = Coronary artery disease
CAS = Carotid artery stenting
CASH = Chemotherapy-associated steatohepatitis
CAVATAS = Carotid and Vertebral Artery Transluminal Angioplasty Study
CaVenT = Catheter-directed Venous Thrombolysis
CBC = Complete blood count
CBCT = Cone-beam computed tomography
CBF = Cerebral blood flow
CBV = Cerebral blood volume
CC = Cisterna chyli
CCA = Common carotid artery
CCD = Charge-coupled device
CCS = Canadian Cardiovascular Society
CDC = Centers for Disease Control and Prevention
CDT = Catheter-directed thrombolysis
CEA = Carcinoembryonic antigen; carotid endarterectomy
CFA = Common femoral artery
CFV = Common femoral vein
CHA = Common hepatic artery
CHF = Congestive heart failure
CIA = Common iliac artery
CIN = Contrast-induced nephropathy
CIWA = Clinical Institute Withdrawal Assessment
CKD = Chronic kidney disease
CLABSI = Central line-associated bloodstream infection
CLI = Critical limb ischemia
CMS = Centers for Medicare and Medicaid Services

CNS = Central nervous system
COPD = Chronic obstructive pulmonary disease
COX = Cyclooxygenase
CP = Cerebral protection
CPAP = Continuous positive airway pressure
CPAS = Congenital pulmonary artery stenosis
CPOE = Computerized physician order entry
CPR = Cardiopulmonary resuscitation
CPRF = Curved planar reformats
CPT = Current Procedural Terminology
Cr = Creatinine (serum)
CQI = Continuous quality improvement
CR-BSI = Catheter-related bloodstream infections
CRC = Colorectal cancer
CREST = Carotid Revascularization Endarterectomy versus Stenting Trial
CRP = C-reactive protein
CSF = Cerebrospinal fluid
CsI = Cesium iodide
CT = Computed tomography
CTA = Computed tomographic angiography
cTACE = Conventional transarterial chemoembolization
CTO = Chronic total occlusion
CTP = CT perfusion
CTV = Computed tomography venography
CV = Central venous
CVA = Cerebral vascular accident
CVC = Central venous catheter
CVD = Chronic venous disease
CXR = Chest radiograph; chest xray

D

 

D5½NS = 5% dextrose, half-normal saline solution

D5W = 5% Dextrose solution
DAP = Dose–area product
DAVF = Dural arteriovenous fistula
DCI = Delayed cerebral ischemia
DEB = Drug-eluting bead; drug-eluting balloon
DER = Dual energy radiography
DES = Drug-eluting stent
DH = Degree of hypertrophy
DIC = Disseminated intravascular coagulopathy
DICOM = Digital imaging and communication in medicine
DIPS = Direct intrahepatic portosystemic shunt
DLGJ = Double lumen gastrojejunostomy
DIR = Dose Index Registry; double inversion recovery
DM = Diabetes mellitus
DMSO = Dimethyl sulfoxide
DNI = Do not intubate
DNR = Do not resuscitate
DOQI = Disease Outcomes Quality Initiative
DQE = Detective quantum efficiency
DSA = Digital subtraction angiography
DTPA = Diethylenetriamine pentaacetic acid
DUS = Doppler ultrasound; duplex ultrasound
DVT = Deep vein thrombosis

E

E&M = Evaluation and Management
EASL = European Association for the Study of the Liver
ECG = Electrocardiogram
ECOG = Eastern Cooperative Oncology Group
ECST = European Carotid Surgery Trial
ED = Emergency department
EDV = End-diastolic velocity

EGFR = Epidermal growth factor receptor
eGFR = Estimated GFR
EIA = External iliac artery
ENT = Ear, nose, and throat
EPD = Embolic protection device
ERCP = Endoscopic retrograde cholangiopancreatography
ERF = Esophagorespiratory fistula
ESBL = Extended-spectrum betalactamase
ESCAPE = Endovascular Treatment for Small Core and Anterior Circulation Proximal Occlusion with Emphasis on Minimizing CT to Recanalization Times
ESI = Epidural steroid injection
ESWL = Extracorporeal shock wave lithotripsy
EUS = Endoscopic ultrasound
EVA-3S = Endarterectomy versus Angioplasty in Patients with Symptomatic Severe Carotid Stenosis
EVAR = Endovascular aortic aneurysm repair
EVLT = Endovenous laser treatment
EVOH = Ethylene vinyl alcohol
EXTEND-IA = Extending the Time for Thrombolysis in Emergency Neurological Deficits–Intra-arterial

F

FB = Foreign body
FDA = U.S. Food and Drug Administration
FDG-PET = Positron emission tomography
FFP = Fresh frozen plasma
FHVP = Free hepatic venous pressure
FLR = Future liver remnant
FNA = Fine needle aspiration
FNH = Focal nodular hyperplasia
FOV = Field-of-view

G

GA = General anesthesia
GABA = Îł-Aminobutyric acid

Gd = Gadolinium
GDA = Gastroduodenal artery
GDC = Gugliemi detachable coil
Gd-MRA = Gadolinium enhanced MRA
GFR = Glomerular filtration rate
GI = Gastrointestinal
GJ = Gastrojejunostomy
GP = Glycoprotein
GSV = Greater saphenous vein
GU = Genitourinary
GW = Guidewire

H

HA = Hepatic artery
HAP = Hepatic artery pseudoaneurysm
HAS = Hepatic artery stenosis
HASTE = Half-Fourier acquisitions with single-shot turbo-spin echo
HAT = Hepatic artery thrombosis
HCC = Hepatocellular carcinoma
HCFMEA = Health Care Failure Mode and Effects Analysis
hCG = Human chorionic gonadotropin
HCl = Hydrochloride
Hct = Hematocrit
HD = Hemodialysis
Hgb = Hemoglobin
HHT = Hereditary hemorrhagic telangiectasia
HIFU = High-intensity focused ultrasound
HIT = Heparin-induced thrombocytopenia
HITT = Heparin-induced thrombocytopenia with thrombosis syndrome
HMPAO = Hexamethylpropyleneamine oxime
HMW = High-molecular-weight
HOCA = High-osmolality contrast agents
HPS = Hepatopulmonary syndrome
HR = Hazard ratio; heart rate

HSG = Hysterosalpingogram
HT = High thigh
HTN = Hypertension
HU = Hounsfield unit
HV = Hepatic venous
HVPG = Hepatic venous pressure gradient

I

IA = Intra-arterial
IC = Intracranial
ICA = Internal carotid artery
ICBT = Intercostobronchial trunk
ICD-10 = International Classification of Diseases, 10th revision
ICH = Intracerebral hemorrhage
ICP = Intracranial pressure
ICSS = International Carotid Stenting Study
ICU = Intensive care unit
ID = Internal diameter
IFU = Instructions for use
IHI = Institute for Healthcare Improvement
IHSS = Idiopathic hypertrophic subaortic stenosis
II = Image intensifier
IIA = Internal iliac artery
IIEF = International Index of Erectile Function
IJ = Internal jugular
IJV = Internal jugular vein
IM = Intramuscular
IMA = Inferior mesenteric artery; internal mammary artery
IMS III = Interventional Management of Stroke III
IMV = Inferior mesenteric vein
INR = International normalized ratio
IO = Interventional oncology
IOM = Institute of Medicine
IPSS = International Prostate Symptom ScoreIQR Interquartile range
IR = Interventional radiology; interventional radiologist
IRE = Irreversible electroporation
ISAT = International Subarachnoid Aneurysm Trial
ISV = Internal spermatic vein
ITT = Intention to treat
IV = Intravenous; intravenously
IVA = Inferior vesical artery
IVC = Inferior vena cava
IVUS = Intravascular ultrasound

J

J-tube = Jejunostomy

 

K

KAP = Kerma–area product
KGR = Kinetic growth rate
KP = Kyphoplasty
K-RAS = Kirsten Rat Sarcoma Viral Oncogene Homolog
KTS = Klippel–Trenaunay syndrome
kVp = Kilovolt peak
KVO = Keep vein open

L

LA = Left atrial; left atrium
LAD = Left anterior descending
LAO = Left anterior oblique
LCD = Liquid crystal display
LDCT = Low-dose CT
LDH = Lactate dehydrogenase
LDL = Low-density lipoprotein
LFT = Liver function test
LGIB = Lower GI bleeding
LM = Lymphatic malformations
LMA = Laryngeal mask airway
LMWH = Low-molecular-weight heparin
LOCA = Low-osmolality contrast agents
LOCM = Low osmolar contrast medium

LSCA = Left subclavian artery
LSF = Lung shunt fraction
LSN = Last seen normal
LUTS = Lower urinary tract symptoms
LV = Left ventricle; left ventricular
LVEDP = Left ventricular end-diastolic pressure
LVEDV = Left ventricular end-diastolic volume
LVO = Large vessel occlusion

M

MAA = Macroaggregated albumin
MAC = Monitored anesthesia care
MAO = Monoamine oxidase
MAP = Mean arterial pressure
MBB = Medial branch block
MC = Manual compression
MCA = Middle cerebral artery
mCRC = Metastatic colon cancer
mCTA = Multiphase CTA
MD = Medical doctor
MI = Myocardial infarction
MIP = Maximum intensity projection
MODS = Multiple organ dysfunction syndrome
MPA = Multipurpose shape
MPR = Multiplanar reformations
MR = Magnetic resonance
MRA = Magnetic resonance angiography
MR CLEAN = Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands
MRCP = Magnetic resonance cholangiopancreatography
MRDSA = Magnetic resonance digital subtraction angiography
mRECIST = Modified Response Evaluation Criteria in Solid Tumors
MR RESCUE = Mechanical Retrieval and Recanalization of Stroke Clots Using Embolectomy

MRI = Magnetic resonance imaging
MRV= Magnetic resonance venogram; magnetic resonance venography
mTICI = Modified thrombolysis in cerebral infarction
MTT = Mean transit time
MWA = Microwave ablation

N

nAC = n-Acetyl cysteine
NaHCO3 = Sodium bicarbonate
NASCET = North American Symptomatic Carotid Endarterectomy Trial
nBCA = n-Butyl cyanoacrylate
NCCT = Noncontrast computed tomography
NG = Nasogastric
NG-tube = Nasogastric tube
NIH National Institutes of Health
NIHSS = National Institutes of Health Stroke Scale
NINDS = National Institute of Neurological Disorders and Stroke
NKF-KDOQI = Kidney Disease Outcomes Quality Initiative
NLST = National Lung Screening Trial
NOHAH = Nonocclusive hepatic artery hypoperfusion syndrome
NOMI = Nonocclusive mesenteric ischemia
NPH = Neutral protamine Hagedorn
NPO = Nil per os
NS = Normal saline
NSAID = Nonsteroidal anti-inflammatory drug
NSCLC = Non–small cell lung cancer
NSF = Nephrogenic systemic fibrosis
NTG = Nitroglycerin
NYHA = New York Heart Association

O

OD = Outer diameter
OP = Outpatient
OPSI = Overwhelming post-splenectomy infection
OR = Operating room

OSA = Obstructive sleep apnea

P

PA = Physician’s assistant; pulmonary artery
PACS = Picture archiving and communication system
PAD = Peripheral arterial disease; pulmonary artery diastolic
PAE = Prostate artery embolization
PAP = Pulmonary arterial pressure
PARTO = Plug-assisted retrograde transvenous obliteration
PAVM = Pulmonary arteriovenous malformation
PBD = Percutaneous biliary drainage
PCA = Patient-controlled analgesia; posterior cerebral artery
PCC = Prothrombin complex concentrate
PCDT = Pharmacomechanical catheter-directed thrombolysis
PCI = Percutaneous coronary intervention
PC-MRA = Phase contrast-MRA
PCN = Percutaneous nephrostomy
PCORI = Patient-Centered Outcomes Research Institute
PCSA = Patient-controlled sedation
PCW = Pulmonary capillary wedge
PCWP = Pulmonary capillary wedge pressure
PD = Peritoneal dialysis
PDCA = Plan–Do–Check–Act
PE = Peroneal; pulmonary embolism/embolus
PEEP = Positive end-expiratory pressure
PEG = Polyethylene glycol
PEM = Polidocanol endovenous microfoam
PERP = Patient entrance reference point
PET = Positron emission tomography
PFO = Patent foramen ovale
PGA = Polyglycolic acid
PGJ = Percutaneous gastrojejunostomy
PIAA = Physicians Insurers Association of America
PICC = Peripherally inserted central catheter

PIOPED = Prospective Investigation of Pulmonary Embolism Diagnosis
PJ = Percutaneous jejunostomy
PMMA = Polymethylmethacrylate
PMT = Percutaneous mechanical thrombectomy
PO = By mouth
PPH = Postpartum hemorrhage
P-PS = Power-pulse spray
pr = Per rectum
PRBC = Packed red blood cell
PRG = Percutaneous radiologic gastrostomy
PSA = Pseudoaneurysm
PSA = Prostate specific antigen
PSD = Peak skin dose
PSV = Peak systolic velocity
PT = Prothrombin time; posterior tibial
PTA = Percutaneous transluminal (balloon) angioplasty
PTC = Percutaneous transhepatic cholangiography
PTD = Percutaneous thrombolytic device
PTFE = Polytetrafluoroethylene
PTRA = Percutaneous transluminal renal angioplasty
PTS = Postthrombotic syndrome
PTT = Partial thromboplastin time
PTX = Pneumothorax
PV = Percutaneous vertebroplasty; portal vein/venous
PVA = Polyvinyl alcohol
PVC = Premature ventricular contraction
PVE = Portal vein embolization
PVR = Pulmonary vascular resistance; pulse volume recording
PVS = Portal vein stenosis
PVT = Portal vein thrombosis

Q

QA = Quality assurance
qEASL = Quantitative European Association for the Study of the Liver

qid = Four times per day
QISS = Quiescent interval single shot
QOL = Quality of life

R

RA = Right atrium
RAO = Right anterior oblique
RAPTURE = Radiofrequency Ablation of Pulmonary Tumors Response Evaluation
RAS = Renal artery stenosis
RBBB = Right bundle branch block
RBC = Red blood cell
RCA = Root cause analysis
RCC = Renal cell carcinoma
RCT = Randomized controlled trial
RF = Radiofrequency
RFA = Radiofrequency ablation
RHV = Right hepatic vein
RI = Renal insufficiency; resistive index
RIJ = Right internal jugular
RIM = Rösch inferior mesenteric
RN = Registered nurse
ROBOT = Rotational bidirectional thrombectomy
ROI = Region of interest
ROSE = Rapid on site evaluation
RPO = Right posterior oblique
RR = Respiratory rate
RT = Respiratory therapist
rt-PA = Recombinant tissue plasminogen activator
RV = Right ventricle
RVEDP = Right ventricular end diastolic pressure
RVR = Renal vein renin

S

SAH = Subarachnoid hemorrhage
SAP = Superabsorbent polymerSBP Systolic blood pressure
SBRT = Stereotactic body radiotherapy
SC = Subcutaneous; subclavian
SEER = Surveillance, Epidemiology, and End Results
SEMS = Self-expanding metallic stents
SEV = Superficial epigastric vein
SFA = Superficial femoral artery
sFLR = Standardized future liver remnant
SI = Sacroiliac
SICH = Symptomatic intracranial hemorrhage
SIN = Salpingitis isthmica nodosa
SIR = Society of Interventional Radiology
SIRS = Systemic inflammatory response syndrome
SK = Streptokinase
SMA = Superior mesenteric artery
SMV = Superior mesenteric vein
SNMMI S= ociety of Nuclear Medicine and Molecular Imaging
SNR = Signal-to-noise ratio
SNRB = Selective nerve root block
SPACE = Stent-supported Percutaneous Angioplasty of the Carotid Artery
versus Endarterectomy
SPECT = Single-photon emission computed tomography
SPGR = Spoiled gradient echo
SPN = Solitary pulmonary nodules
SQ = Subcutaneous
SSFP = Steady state free precession
SSFSE = Single-shot fast spin echo
SSI = Surgical site infection
SSV = Short saphenous vein
STIR = Short T1 inversion recovery
STS = Sodium tetradecyl sulfate
SUV = Standardized uptake value

SVC = Superior vena cava
SVR = Systemic vascular resistance
SVS = Society of Vascular Surgery
SVT = Superfical venous thrombosis
SWIFT PRIME = Solitaire with the Intention for Thrombectomy as Primary Endovascular Treatment

T

TA = Tumescent anesthesia
TAA = Thoracic aortic aneurysm
TACE = Transarterial chemoembolization
TAE = Transarterial embolization
TCD = Transcranial Doppler
TcPO2 = Transcutaneous oxygen pressure
TD = Thoracic duct
TDE = Thoracic duct embolization
TEE = Transesophageal echo
TELV = Total estimated liver volume
TEVAR = Thoracic endovascular aortic repair
TFT = Thin-film transistor
TIA = Transient ischemic attack
TIPS = Transjugular intrahepatic portosystemic shunt
TLR = Target lesion revascularization
TLV = Total liver volume
TNB = Transthoracic needle biopsy
TNK = Tenecteplase
TNM = Tumor, node, metastasis
TOF = Time-of-flight
TOPAS = Thrombolysis or Peripheral Arterial Surgery
TPN = Total parenteral nutrition
TR = Repetition time
TRICKS = Time Resolved Imaging of Contrast Kinetics
TTP = Thrombotic thrombocytopenic purpura; time to peak
TTS = Time to start

TURP = Transurethral resection of prostate

U

UAE = Uterine artery embolization
UFE = Uterine fibroid embolization
UK = Urokinase
UR = Urinary retention
US = Ultrasound
UTI = Urinary tract infection

V

VAA = Visceral arterial aneurysms
VB = Vertebral body
VCD = Vascular closure device
VEGF = Vascular endothelial growth factor
VENC = Velocity encoding value
VIP = V-Twist Integrated Platform
VIPR = Vastly undersampled Isotropic Projection Reconstruction
VM = Venous malformations
V/Q = Ventilation/perfusion
VS = Vital signs
VT = Ventricular tachycardia
VTE = Venous thromboembolism

W

WBC = White blood cell
WHO = World Health Organization
WHOL = Worst headache of life
WHVP = Wedged hepatic venous pressure

Frequently Asked Questions

What does the abbreviation AAA stand for in interventional radiology?

In interventional radiology, AAA stands for Abdominal Aortic Aneurysm. It is a condition where the large blood vessel (aorta) that supplies blood to the abdomen, pelvis, and legs becomes abnormally large or balloons outward. This can be a serious condition as it may lead to rupture, causing life-threatening bleeding.

How is 18F-FDG used in medical imaging?

18F-FDG, or 18F-fluorodeoxyglucose, is a radiotracer used in positron emission tomography (PET) imaging. It is a glucose analog that helps in identifying areas of high metabolic activity, such as cancer cells, by highlighting these regions on a PET scan. This is particularly useful in diagnosing, staging, and monitoring the treatment of cancer.

What is the difference between 2D and 3D imaging in radiology?

2D imaging, or two-dimensional imaging, captures flat images of the body, similar to photographs, which can be useful for examining structures like bones and organs in a single plane. 3D imaging, or three-dimensional imaging, provides a volumetric view, allowing for a more comprehensive examination of anatomical structures from multiple angles. This can enhance diagnostic accuracy and surgical planning.

What role does the ACR play in radiology?

The ACR, or American College of Radiology, is a professional organization dedicated to improving the practice of radiology. It provides guidelines, education, and accreditation to ensure high-quality imaging care. The ACR also advocates for radiologists and promotes research and innovation in the field of radiology.
BPH stands for Benign Prostatic Hyperplasia, which is an enlargement of the prostate gland common in older men. Interventional radiology offers a minimally invasive treatment option called Prostatic Artery Embolization (PAE), which reduces the prostate's blood supply, leading to shrinkage of the gland and relief from urinary symptoms.

Why is the Ankle-Brachial Index (ABI) important in radiology?

The Ankle-Brachial Index (ABI) is a simple, non-invasive test used to check for peripheral artery disease (PAD). It compares the blood pressure in the ankle with the blood pressure in the arm. In radiology, ABI can help determine the severity of PAD and guide further imaging and treatment decisions, such as angiography or stenting.

What is a DVT and how is it treated in radiology?

DVT stands for Deep Vein Thrombosis, a condition where a blood clot forms in a deep vein, usually in the legs. In interventional radiology, DVT can be treated with procedures like catheter-directed thrombolysis, which dissolves the clot using medication delivered directly to the site, and mechanical thrombectomy, which physically removes the clot.

What is the significance of CTP in stroke management?

CTP, or CT Perfusion, is a specialized imaging technique used in stroke management to assess blood flow to the brain. It helps identify areas of reduced blood flow and distinguish between brain tissue that can be saved and that which is irreversibly damaged. This information is crucial for deciding treatment strategies, such as thrombolysis or mechanical thrombectomy.

How is the term 'AVM' relevant in interventional radiology?

AVM stands for Arteriovenous Malformation, which is an abnormal tangle of blood vessels connecting arteries and veins. In interventional radiology, AVMs can be treated using endovascular techniques like embolization, where the blood supply to the AVM is blocked, reducing the risk of bleeding and other complications.

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