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).

Before I looked into PET scans, I thought that positrons were purely science fiction. Turns out that positrons are for real and were discovered way back in 1932. I really should get out more.

PET scan basics

Animation by Jens Langner

 

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

Wikipedia

The Basics of MRI

What Is Cardiac MRI?

The MRI Game

MRI links

Combining MRI and PET

The Future Role of functional MRI

Functional MRI

 

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About Jack Hanson

Jack Hanson

Jack is not your typical future technology blogger. As an early baby boomer, he's lost a bit of his bang. Not intending to be cruel, Facebook recently notified him that his schoolmates at General Equivalency Diploma, really want to be friends again. His yearly income averages just above his monthly urges. In spite of that, or because of it, Jack has a lust for living, a thirst for knowledge and a strong desire to contribute to a better future for all.

 

A nerdy social misfit with a head full of phobias and a quirky sense of humor, his personality has been described as "Sheldon from The Big Bang Theory--without the genious part."

 

Jack Hanson is solely responsible for the articles, editing and web design of FutureForAll.org.

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