Digital Imaging in

MedicineDigital Radiography, the Basics

F. Jahedi MD, MS(Medical IT)

May 2010

We want to talk about:

At first let’s talk about:

• Mathematically is:

Indefinite number of continuous points that make an image

• Mathematically is:

Definite number of discontinuous points that make an image

• INDEFINITE number of CONTINUOUS points that make an image

• DEFINITE number of DISCONTINUOUS points that make an image

Continuous

Discontinuous

Indefinite

Definite

0

1

2

3

4

5

0 0.5 1 1.5 2 2.5

0

1

2

3

4

5

0 0.5 1 1.5 2 2.5

0

1

2

3

4

5

0 0.5 1 1.5 2 2.5

Digital Analogue

Difficult to keep for long time

Difficult to keep related metadata

Impossible to manipulate

Impossible to merge with other images

Limited access and restricted resources

Not easy to transfer to different places synchronously

Ability of Storage

Ability to Process

Ability to Transfer

Storage

Archiving

Transfer

Communication

Process

Image Processing

DIPPACS

Enh

ance

men

t • Brightness

• Contrast

• Colorize M

etri

cs • Volumetric

3D

Rec

on

stru

ctio

ns • Coronary CT

Angiography

• Brain CT Angiography

Archiving

Storage Management

HardwareSAN / DVD

Robots

Software Compressions

Data Management

Relations

CPR

Reports

Retrieval

Operational

Work lists

Follow ups

Research

Data Mining

ANN

Communication

Integration

With HIS

In OAS

Collaborations

Education

Research

Telematics

Teleconsultation

Teleradiology

Better Diagnosis

Better Treatment

Better Evidences

Better Researches

Better Collaboration

Better Education