ELECTRON BEAM TOMOGRAPHY

PAST PRESENT FUTURE Douglas P. Boyd, PhDChief Scientist, GE Imatron

EBT Symposium New Orleans

September 20-22, 2002

The Past: Imatron Firsts!• First and only electronic CT 1983• First CT movie of the beating heart 1984• First Multi-slice CT 1985• First Bolus Phase imaging in CT 1988• First continuous rotation scanner 1988• First Coronary Calcium studies 1988• First sub-second reconstruction 1994• First CT coronary angiography 1995• First CT 4D Cine EBA 2000• C300 New platform for growth 2001

EBT New Installations

0

5

10

15

20

25

30

35

1999 2000 2001 2002

Types of Scanners in the field

C150 Version 11 3

C150LXP Version 12 19

C150LH “ “ 2

C150XP “ “ 47

C150HR “ “ 57

C300 Version 14 24

Mobiles 4/v12 and 3/v14 7

total 159

C100 is extinct

Model software number

Global Distribution of EBT

USA sites 102

European sites 18

Japanese sites 25

Other Asia sites 14

total 159

EBT Locations in U.S.

EBT Unique Capabilities vs. Multi-Slice Spiral Scanners

• Coronary imaging at high heart-rates and irregular rhythm

• Wide-volume blood flow; myocardial perfusion

• Multi-phase CineEBA and vessel analysis

Cardiac Imaging at High Heart Rates

Unique to EBT

EBA at 150-300 BPM, 2 Phase

Atrial Fibrillation patient referred for pulmonary vein study. The heart was fluttering between 150-300 bpm.

Wide Organ Perfusion

Unique to EBT

Flow mode covering 8 cm

Functional Image of Transit Time and Blood Flow

Multi-Phase Vessel Analysis

Present and Future EBA Capabilities

Unique to EBT

C150 2-phase CineEBA

C300 3-Phase CineEBA

Automatic Vessel Extraction

Auto-Multi-Phase Vessel Tracking

AW Multi-Phase Vessel Analysis

Cine-Curved MIP

Rotation Thin VR LAD

Cross-Section Area Analysis

Cine Lumen Analysis

Lumen Area

Plaque Volume

Lumen Navigator

Cine-Navigator View

Future

Faster scan speedThinner slicesMore cine framesMore one-touch analysis and reporting

The Goal: replace invasive diagnostic angiography