| AAA | abdominal aortic aneurysm |
| AAPM | American Association of Physicists in Medicine |
| ACHD | adult congenital heart disease |
| ACR | American College of Radiology |
| ACTM | automatic tube current modulation |
| AI | artificial intelligence |
| AIS | acute ischemic stroke |
| AiCE | Advanced intelligent Clear-IQ Engine |
| ALARA | as low as reasonably achievable |
| ASIR | adaptive statistical iterative reconstruction |
| ASL | arterial spin labeling |
| BEIR | Biologic Effects of Ionizing Radiation |
| CAD | coronary artery disease |
| CaSc | calcium score |
| CCTA | coronary computed tomography angiography |
| CEUS | contrast-enhanced ultrasound |
| CE-MRA | contrast-enhanced magnetic resonance angiography |
| cm | centimeter |
| CMR | cardiac magnetic resonance |
| CMRA | cardiac magnetic resonance angiography |
| CNN | convolutional neural networks |
| CS TOF-MRA | compressed sensing time of flight magnetic resonance angiography |
| CT | computed tomography |
| CTA | computed tomography angiography |
| CTDIvol | Computed Tomography Dose Index Volume |
| CTEPH | chronic thromboembolic pulmonary hypertension |
| DECT | dual-energy computed tomography |
| DL | deep learning |
| DLIR | deep learning image reconstruction |
| DLP | dose length product |
| DSCT | dual-source computed tomography |
| DWI | diffusion weighted imaging |
| DUS | duplex ultrasound |
| ECG | electrocardiogram |
| ECTCM | electrocardiogram-controlled tube current modulation |
| ED | emergency department |
| EMT | endovascular mechanical thrombectomy |
| FBP | filtered back projection |
| FPS | frames per second |
| FSD | flow-sensitive dephasing |
| ICH | intracranial hemorrhage |
| ICRP | International Commission on Radiological Protection |
| ICU | intensive care unit |
| IFDIR-MRA | inflow-dependent inversion recovery magnetic resonance angiography |
| IR | iterative reconstruction |
| keV | kiloelectronvolt |
| LCS | lung cancer screening |
| LDCT | low dose computed tomography |
| mGy | milligray |
| mL | milliliter |
| MRI | magnetic resonance imaging |
| MRA | magnetic resonance angiography |
| mSv | millisievert |
| NC-MRA | non-contrast magnetic resonance angiography |
| NCRP | National Council on Radiation Protection and Measurements |
| NDCT | normal dose computed tomography |
| PCI | percutaneous coronary intervention |
| PE | pulmonary embolus |
| PETRA-MRA | pointwise encoding time reduction magnetic resonance angiography |
| QISS | quiescent-interval slice-selective |
| SNR | signal to noise ratio |
| T | Tesla |
| TOF | time of flight |
| TOF-MRA | time of flight magnetic resonance angiography |
| TTE | transthoracic echocardiography |
| V/Q | ventilation/profusion |
| VLFF | very low frame rate fluoroscopy |
| VMI | virtual monoenergetic images |
| WT | tissue weighting factor |
| zTE-MRA | zero echo time magnetic resonance angiography |