g
Product Data Sheet – rev 4.2
July 4th 2003
Page 2
LightSpeed
With Xtream
CT Scanner System
GE Medical Systems-America
Milwaukee, USA - Fax: 1 414 544 3384
GE Medical Systems-Asia:
Tokyo, Japan - Fax: 81 425 85 5490
Hong Kong - Fax: 852 2559 3588
GE Medical Systems-Europe
• SmartPrep, standard on LightSpeed
16
,
provides software for real-time monitoring of
contrast enhancement.
• Prospective or retrospective image
reconstruction of 0.625 mm, 1.25 mm,
2.5 mm, 3.75 mm, 5 mm, 7.5 mm or 10
mm images from inherently thinner
acquisition data sets;
Peripheral Run-Off
Coverage 1,400 mm
Rotation 0.5 sec.
Mode 16 x 1.25 mm
Pitch 1.75:1
mA 380
mAs 190
Speed 70 mm/s
Scan Time 20 seconds
• * Direct3D, makes 3D routine and instant
by building the 3D model during axial image
reconstruction, reducing the need for user
interaction.
• For both helical and axial acquisitions.
• Image decomposition to:
• * SmartScorePro, provides EKG-gated
hardware and software on the Advantage
Workstation for coronary artery calcium
scoring.
• Retrospective reconstruction of thin
images from data sets where thicker
images were initially reconstructed;
• Facilitates more detailed image analysis
without need for re-scans;
• * CardiacSnapShot, provides software
and hardware to perform EKG-gated
reconstructions of the heart in SnapShot
Segment mode.
• Improves 3D visualization;
• For both helical and axial acquisitions
High Resolution Chest
• Up to 2,881 multi-slice 1-sec scan rotations
stored on disk. Facilitates retrospective
image decomposition during off hours.
Coverage 200 mm
Rotation 0.5 sec.
Mode 16 x 0.625 mm
Pitch 1.75:1
mA 440
mAs 220
Speed 35 mm/s
Scan Time 5.7 seconds
- SnapShot Segment is a single sector
protocol using information from one heart
cycle to generate an image with temporal
resolution of 250ms.
• Eight fundamental scan modes to simplify
the inherently complex nature of multi-slice
helical scanning.
- SnapShot Burst is a multi-sector protocol
using up to two sectors from two different
heart cycles to produce an image with
temporal resolution of 125ms.
• Standard set of clinically- proven
protocols derived from leading luminary
sites around the world. Up to 8,460
protocols can be edited, modified and stored
on the system.
- SnapShot Burst Plus is a multi-sector
protocol using up to four sectors of data
from four different heart cycles to produce
images with temporal resolution to 65ms.
The net result is that in many cases, helical
scans on the Lightspeed
16
are up to 12 times
faster than 4-slice CT systems. With the
Lightspeed
16
, users can routinely use a 0.5
second scan speed and 0.5625:1, 0.9375:1,
1.375:1, and 1.75:1 helical pitches. This
added performance, at the same image
quality, may allow you to: reduce contrast
media, perform better thin-slice CT
angiography exams, use thinner slices for
most exams, and perform longer helical exams
without tube cooling delays.
• Remote Gantry Tilt from the Operator’s
Console to increase exam speed, including
built-in safety features to prevent accidental
contact of the gantry with the patient.
• CTDI
w
, DLP (Dose Length Product), and
Dose Efficiency display during scan
prescription provides patient dose
informatbon to the operator.
• Built-in patient breathing lights and digital
counter provides a goal-oriented approach
to coach the patients in holding their breath
during an exam.
Interactive CT Technology
The LightSpeed
16
CT Scanner supplies
exceptional computer and image processing
power that significantly enhances clinical
productivity, building upon the strength of the
LightSpeed family - true interactive CT
technology.
• SmartStart gantry-mounted start scan
button and countdown display, facilitates
single-technologist operation by allowing
start of scan at the gantry, with a visual
reminder of time until X-ray initiation.
The LightSpeed
16
delivers this level of
performance through a balanced design
that focuses on image quality, coverage,
and exam speed.
• SmartHelical GE proprietary, non-linear
interpolation algorithms, balance slice
profile, helical pitch, image noise and
required technique.
Main Features
Interactive CT embodies a variety of design
choices all striving to enhance operator and
department productivity. A truly interactive CT
system will:
• Full 360° rotation speed of 0.5 sec. provides
for improved temporal resolution and image
quality in areas such as cardiac imaging;
• SmartTrack advanced hardware and
software for X-ray beam tracking minimizes
patient dose.
• Provide a user interface beyond “intuitive”
to become purely “natural” - from the
screens to the console hardware itself;
• Faster scan times enable shorter breath
holds and more comfortable exams for
patients;
• SmartTools software automates every
exam task in order to increase throughput.
• Allow two users to review cases side-by-
side, with minimal interference;
• Faster scan times reduce the occurrence of
re-scans by lowering the possibility of
patient motion during the exam;
• SmartBeam
TM
hardware and software
optimizes X-ray beam filtration
independently for body and head
applications.
• Supply a truly multi-tasking environment
where even advanced image processing
can take place quickly and simultaneously
with other processes underway;
• Routine scanning with a slice thickness of
0.625mm - optimizes lesion detection and
facilitates the use of thinner images for
volume presentations.
• HiRes Chest software provides a single-
slice, high-resolution scan mode that
minimizes dose for this critical application.
• Operate with a very high degree of
automation, yet allow patient-specific
• Reduced partial volume artifacts:
* Option
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