Modalities

CT, MRI, interventional, ultrasound, mammography, PET/CT, linac, and more.

24 entries

Bone Densitometry (DXA)

Dual-energy X-ray absorptiometry. Quantifies bone mineral density (BMD) by comparing tissue attenuation at two X-ray energies — bone…

C-Arm (Mobile Fluoroscopy)

C-shaped mobile fluoroscopic imaging system. X-ray tube on one end, image intensifier (legacy) or flat-panel detector (modern) on the…

CT (Computed Tomography)

Rotating X-ray source and detector array reconstruct cross-sectional images from hundreds of projections per rotation. The detector-row…

CyberKnife (Robotic Radiosurgery)

Robot-mounted 6 MV compact linear accelerator on a 6-axis industrial robotic arm. Treats targets throughout the body (not just…

Dental Cone-Beam CT

Cone-beam volumetric X-ray imaging optimized for dental + maxillofacial anatomy. Distinct from medical CT: lower dose, higher spatial…

Digital Radiography (Fixed Room)

Dedicated fixed X-ray rooms for general radiography — chest, abdomen, extremities, spine. Wall-mounted + table-mounted detectors +…

Fluoroscopy (Fixed-Table, R/F Rooms)

Room-based fluoroscopy systems used for GI studies (barium swallow, small bowel follow-through, barium enema), urology (voiding…

Gamma Knife (Cobalt-Source Stereotactic Radiosurgery)

Dedicated intracranial stereotactic radiosurgery platform. 192 cobalt-60 sources arranged in a helmet-shaped collimator body, all focused…

Handheld / Point-of-Care Ultrasound

Compact ultrasound — probe-only or probe + tablet / phone. Eliminates the cart. Growing rapidly in emergency medicine, critical care,…

Interventional X-Ray (Cath Lab / IR)

Fixed fluoroscopy system purpose-built for image-guided interventional procedures. Ceiling-suspended or floor-mounted C-arm geometry,…

Intraoperative / Surgical CT

Mobile cone-beam CT designed for operating-room use. Brings volumetric CT imaging into surgery for real-time pedicle-screw placement…

Linear Accelerator (Radiation Therapy)

Radiation therapy device. Accelerates electrons to MeV energies through a waveguide; electrons either strike a target to produce MV photon…

Low-dose X-ray imaging of breast tissue. Full-field digital mammography (FFDM) replaced screen-film in the 2000s. Digital breast…

Mobile Digital Radiography

Battery-powered wheeled X-ray carts with collimated tube + wireless flat-panel detector. Brings radiography to the patient — ICU, NICU,…

MR-Linac (MR-Guided Radiotherapy)

Hybrid radiotherapy device combining a linear accelerator with an integrated MRI scanner. Enables real-time soft-tissue imaging during…

MRI (Magnetic Resonance Imaging)

Uses strong magnetic fields and radio waves to image soft tissue without ionizing radiation. Superconducting magnet cooled by liquid…

Nuclear Medicine (SPECT + SPECT/CT)

Functional imaging using gamma cameras that detect photons emitted by injected radiotracers. Most common clinical tracer: Tc-99m…

Open and Extremity MRI

Specialty MRI configurations that serve populations and use cases that whole-body closed-bore 1.5 T / 3 T MRI doesn't:

Optical Coherence Tomography — non-X-ray imaging using infrared interferometry. OCT is to ophthalmology what MRI is to neurology: a…

PET/CT (Positron Emission Tomography + CT)

Hybrid imaging — a PET ring detects coincident 511 keV photons from positron annihilation of an injected radiotracer, combined with a CT…

PET/MR (Simultaneous Hybrid Imaging)

Hybrid modality combining a PET ring with an MRI scanner — simultaneously, not sequentially like PET/CT. The PET detector ring is…

Charged-particle radiotherapy using accelerated protons instead of MV X-rays. Physics advantage: protons deposit most of their energy at a…

TomoTherapy (Helical Radiotherapy)

Integrates a 6 MV linear accelerator into a CT-style rotating gantry. The patient couch moves continuously through the bore while the…

Ultrasound (Diagnostic Sonography)

High-frequency sound waves imaged in real time. A cart-based system plus a family of transducer probes. No ionizing radiation.…