Medical Imaging Technology

3d  scan of human head with slice removed

Medical imaging refers to the techniques and processes used to create images of the human body (or parts thereof) for clinical purposes (medical procedures seeking to reveal, diagnose or examine disease) or medical science (including the study of normal anatomy and physiology).

Image courtesy of Super Dave Chen


Computed Tomography

Computed tomography device

Computed tomography (CT Scan) is a medical imaging method employing digital geometry processing to generate a three-dimensional image of the inside of an object from a large series of two-dimensional X-ray images.

Computed tomography

MIT creates 3-D images of living cell

Aquilion ONE Computed Tomography (CT) System

Image from wikipedia


PET Scans

Positron Emission Tomography

PET (Positron Emission Tomography), is an imaging procedure that is both a medical and a research tool. It is used in imaging of tumors and for clinical study of the brain. PET combined with CT (Computer Tomography), provide both anatomic and metabolic information (i.e., what the structure is and what it is doing).


Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging

Image courtesy of National Library of Medicine

As the name implies, Magnetic Resonance Imaging (MRI) uses a powerful magnetic field to visualize the structure and function of the body. Functional MRI or fMRI is a type of specialized MRI scan that measures the neural activity in the brain or spinal cord.

The National High Magnetic Field Laboratory web site offers the best (for me, that means short and easy), introduction to MRI in their article - MRI: A Guided Tour


The Basics of MRI

What Is Cardiac MRI?

MRI links

The Future Role of functional MRI

Functional MRI




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