M1 - Introduction to Digital Radiographyand PACS

CONVENTIONAL RADIOGRAPHY

CONVENTIONAL RADIOGRAPHY

Uses film & intensifying screen in the image formation process

CONVENTIONAL RADIOGRAPHY

Automatic & manual processing in the darkroom

Digital Imaging

Allows text, photos, drawings, animations & video to appear on the internet.

Digital Imaging

Any imaging acquisition process that produces an electronic image that can be viewed & manipulated on a computer.

DIGITAL RADIOGRAPHY

Filmless imaging system that uses a sensor to capture images, then converts the images into electronic pieces and stores them in a computer

Computed Tomography

1970's, Godfrey Hounsfield, used to image the head only

MRI (magnetic resonance imaging)

Introduced in 1980's

Paul C. Lauterbur

He published the theory behind it in March 1973

September 2, 1971

Paul C. Lauterbur developed the idea of the MRI

fluoroscopy

Advances in 1970's

fluoroscopy

Study of moving body structures

fluoroscopy

A continuous x-ray beam is passed through the body part being examined.

Digital Radiography

Dr. Albert Jutras

Dr. Albert Jutras

Introduced the concept of moving images digitally in his experimentation with Teleradiology

Computed Radiography (CR)

Cassette-based DR

Computed Radiography (CR)

A digital acquisition modality that uses storage phosphor plates to produce projection images.

Computed Radiography (CR)

Introduced commercially in the US in 1983 by Fuji Medical Systems

Digital Radiography

uses an x-ray absorber material coupled to a flat panel detector (FPD) or a charged coupled device (CCD) to form the image

Digital Radiography

an existing x-ray room needs to be retrofitted with these devices if a new DR room is not installed

Direct capture and Indirect capture

DR can be divided into two categories

Indirect capture

x - light - e absorb x-rays and convert them into light then converted into an electrical signal

Direct capture

x - e (x-ray energy directly into an electrical signal)

PACS

Picture Archiving and Communication System

DICOM

PACS can accept any image that is in digital imaging and communications in medicine ____ format, for which it is set up to receive, whether it is from cardiology, radiology, or pathology.

1993

First full-scale PACS in VA Medical Center, Baltimore, USA

VA Medical Center, Baltimore, USA

First full-scale PACS in (location)