1. DR BENCZIK, JUDIT
COMPUTED TOMOGRAPHY

2. PRINCIPLES USES X-RAYS MULTIPLE SLICES AXIAL IMAGES
COMPUTER MANIPULATION
RECONSTRUCTION
JB/CT

3. ADVANTAGES OF CT AXIAL IMAGES 3D RECONSTRUCTION POSSIBLE
THICKNES- AND VOLUME MEASUREMENT
BEST METHOD TO VISUALIZE BONE AND GAS
ARTHROGRAPHY POSSIBLE
JB/CT

4. ADVANTAGES OF CT DIGITAL IMAGE view on computer VARIABLE WINDOWS
tissue specific
GOOD RESOLUTION: 1mm
NO SUPERIMPOSITION
FAST
JB/CT

5. DISADVANTAGES OF CT IONIZING RADIATION SEDATION OR ANESTHESIA NEEDED
MOTION
LIMITED TISSUE CHARACTERIZATION
EXPENSIVE AND TIME CONSUMING
JB/CT

6. EVALUATION CT NUMBER / HOUNSFIELD UNIT (HU)
-1000 to (normalized to H2O)
FAT/FLUID/SOFT TISSUE: -300 to +300
HU of H2O = 0
BONE / METAL: up to +3000
CONTRAST AGENTS
air / gas: -1000
I / Ba: +3000
JB/CT

7. CLINICAL INDICATIONS PULMONARY PARENCHYMA MEDIASTINUM
lymph nodes, vessels, thymus, esophagus, trachea
THORACIC WALL
soft tissues, vertebrae, ribs, sternum, pleura
HEART AND VASCULATURE
JB/CT

8. CLINICAL INDICATIONS CNS, BONES, JOINTS PARENCHYMAL ORGANS (ABDOMEN):
liver, spleen, pancreas, kidneys,
adrenal glands, lymph nodes
URINARY SYSTEM
VASCULATURE
TUBULAR ORGANS: GI tract
ABDOMINAL WALL: soft tissues
JB/CT

9. INTERPRETATION NOMENCLATURE TERMINOLOGY FINDINGS: 1. SIZE 2. SHAPE
3. NUMBER
4. LOCATION
5. MARGINATION
6. HU
JB/CT