GE e-SpeedTM

The GE e-SpeedTM scanner, the world fastest
computed tomography (CT) imaging platform,
delivers a new advanced tool for physicians to
see and diagnose heart disease.

Revolutionary Technology in the Fight Against Heart Disease
e-Speed is an important technology for physicians and
patients with known or suspected heart disease,
because it is a non-invasive solution for assisting in
obtaining critical cardiac diagnosis in less than 15 minutes.
Cardiac CT imaging is challenging because the
coronary arteries are constantly in motion.
The mid-right coronary artery moves five-times its
own diameter in under 300 milliseconds.

EBTTM Technology
The GE e-Speed uses a patented technology called
Electron Beam TomographyTM (EBTTM),
which enables the scanner to perform high-speed,
high-volume imaging to create motion-free visualizations of
the heart and vessels.

The difference between EBT and CT technology is that
EBT features an electron beam that is focused onto one of
four tungsten target rings positioned beneath the patient.
Because there are no moving parts besides the patient table,
the design is free from the limitations of centrifugal force,
enabling it to achieve the fastest scan speeds.
For example, the e-Speed can scan 10 times faster than
any conventional CT system.

EBT creates images like a CT scan, but with a
faster shutter speed, or scan speed.
Fast scan speeds are required to allow medical specialists to
see pictures of the beating heart, arteries and vessels.
For the patient, an EBT scan is a simple and fast exam.

Relevance to Heart Disease
With the GE e-Speed, physicians can now help determine the
extent of heart disease in patients without or prior to
invasive procedures.
Physicians can see the heart's wall motion,
blood flow and perfusion, as well as
measure coronary calcification and assess plaque.

Specific e-Speed Features: Speed and Resolution
The e-Speed is the only imaging technology that
offers 33, 50, or 100ms True Temporal ResolutionTM images at
up to 30 frames per second.
This type of capability is important because the fastest
possible scan modes are required to image high and
irregular heart beats often associated with
patients with heart disease.

The GE e-Speed features additional proprietary technologies
including FlexPhaseTM triggering and eVoxelTM clarity to
better capture images of moving heart and
the very small coronary vessels.
For example, FlexPhase capability allows physicians to
capture images exactly when they need them,
at any point or points in the R-to-R interval.