CT MACHINE COMPARISON CHART
GE LightSpeed RT 16 vs. Philips Brilliance 16-slice (8.0 MHU)

 

CT Scanner Model

> LightSpeed RT 16

> Brilliance 16-Slice

Company GE Healthcare Philips Healthcare
FDA Clearance/ CE Mark YES, 2008 (both) YES
Intended Use Treatment planning, bariatrics & general radiology (including CTA and CTC) Neuro, general radiology
>> GANTRY
Geometry Rotate-rotate, slip ring Rotate-rotate, 16-slice
Detectors, type HiLight, ceramic matrix II Solid-state GOS
Detector width 20 mm 0.75 mm
# of rows 24 16
Reconstructed slice
width options (mm)
0.625, 1.25, 2.5,
3.75, 5, 7.5, 10
0.6 – 12
Elements per row 912 672
# of detection elements 21,888 16,128
Rotation times, sec., 360° 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4 0.5, 0.75, 1, 1.5, 2; 0.4
Partial N/A 0.28, 0.33 (240)
X-ray fan beam angle 55 degrees 57 degrees
Gantry tilt 30 degrees +/- 30 degrees
Gantry dimensions (cm)
(H x W x D)
189 x 223 x 101 203 x 239 x 94
Gantry weight 1920 kg 1764 kg
Gantry aperture 80 cm 70 cm
Scan localizer Laser Laser
>>X-RAY TUBE
X-ray tube anode N/S N/S
Heat storage, HU 8,000,000 8 (MRC technology)
Dissipation rate, HU/min 1,782,000 1608 kHU
Tube cooling Oil/air Oil/air
Tube focal spot (mm) 1.2 x 1.2 to 0.9 x 0.7 Small 0.5 x 1, large 1 x 1
Optional x-ray tubes N/A N/S
>>X-RAY GENERATOR
kW output 100 60
kVp range 80, 100, 120, 140 90, 120, 140
mA range 10 to 800 20 to 500 in 1 mA increments
>>SPIRAL SCANNING
Max scan time 120 seconds 100 seconds
Max scan volume 170 cm (200 option) 175 cm
Spatial resolution, lp/cm Same as axial Up to 24
Pitch 0.5625, 0.9375, 1.375 0.2 to 1.7
Reconstruction time
per image
Up to 16 ips N/S
>>PATIENT TABLE
Vertical 43 to 99.1 cm 58 to 103 cm
Longitudinal 170 cm (200 option) 190 cm
Scannable range 170 cm (200 option) 175 cm
Max load capacity
w/ accuracy (kg)
650 lb or 500 lb +/-0.25mm 204 +/-0.25
>>IMAGE RECONSTRUCTION
Computer CPU Open architecture (LINUX) Intel, Windows OS
Scan FOVs 10 to 50 Up to 50
Reconstruction matrices 512 x 512 512×512; 768×768; 1024×1024
Reconstruction time, sec Up to 16 ips N/S
Per slice, sec As fast as 0.063 Up to 20ips w/ 3-D cone beam
For localization scan, sec Real time N/S
>> DISPLAY
Monitor size 2 – 19 inch LCD 19 inch LCD
Matrices 1280 x 1024 pixels 1280 x 1024 pixels
Range of CT numbers -1024 to 3072 -1024 to 3072
Image enlargement Up to 8x Available
Maximum # of slices
displayed at once
16 1,000 w/ scrolling
>> IMAGE STORAGE
Hard disk, MB 73 GB 146 GB
# of online images 250,000; 512 x 512 matrix 250,000
Archival storage 8.5 GB DVD-R/CD-R DVD-RAM, CD-R
>>RADIATION DOSE
Dose-modulation technique SmartmA-
3-D dose modulation
DoseRight ACS
DoseRight D-DOM
DoseRight Z-DOM
Pediatric-specific
dose control
Color coding for kids Pediatric protocols
Prospective ECG gating N/A Available
Retrospective ECG N/A Available
>>PERFORMANCE
Min. inter-scan time, sec 1 0.5
Dynamic scan rate
scans/min.
960 2284
High-contrast spatial res. 15.4/8.5 Ultra-high resolution
0% MTF, lp/cm 15.4 24
50% MTF, lp/cm 8.5 8
Low contrast resolution
(mm at % at 4 rads)
5 at 0.3% at 13.3 mGy;
8 in CATPHAN
4 at 0.3%
Noise (% at 2.5 rads) 0.32 at 2.85 rads 0.27
CT Angiography Standard (MiP) Available
CT Simulation Optional Available
3-D Package Optional Available
DICOM 3.0 interface YES YES
Additional features Wide-bore, multi-purpose capabilities such as routine scans, interventional procedures, radiation therapy planning and scan trauma. Other features: AutoScan, AutoFilm, AutoVoice, AutoArchive, AutoTransfer,
SmartPrep, ProtocolPro, View/Edit Wizard, DynaPlan Plus, ImageWorks, ProView, remote tilt, in-room start, rear gantry control, breathing lights,
SmartView fluoro option
N/S

 

The Bottom Line: The GE LightSpeed 16-slice has features that separate itself from the Philips product. GE has a higher Kw rating (100) and mA (800). The GE also offers a higher scan at 120 seconds, compared to Philips’ at 100 seconds. However, the Philips Brilliance 16 system is much more affordable, possibly saving someone around 20 to 30% compared to the GE unit. If these differences, features or any other items on this comparison chart do not make a difference for your specific application, then the Philips system may prove to be a scanner that will fall within your price range.

 

Posted by:
Nathan Welch
Sales Manager
407.438.7847   
Nathan@AmberUSA.com

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