MEDICINE

Diagnostic radiology, including x-rays, fluoroscopy, mammography, Dual energy X-ray absorptiometry, angiography and Computed tomography

Ultrasound, including intravascular ultrasound

Non-ionizing radiation (Lasers, Ultraviolet etc.)

Nuclear medicine, including SPECT and positron emission tomography (PET)

Magnetic resonance imaging (MRI), including functional magnetic resonance imaging (fMRI) and other methods for functional neuroimaging of the brain.

For example, nuclear magnetic resonance (often referred to as magnetic resonance imaging to avoid the common concerns about radiation), uses the phenomenon of nuclear resonance to image the human body.

Magnetoencephalography

Electrical impedance tomography

Diffuse optical imaging

Optical coherence tomography