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Manufacturer Specifications - LightSpeed QX/i, GE Healthcare

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MODEL

LightSpeed QXi

X-RAY TUBE
X-RAY TUBE ANODE
Heat storage, hu (X-ray tube anode)6300000
Heat dissipation rate, hu/min (X-RAY TUBE)840000
Tube cooling (X-ray tube anode)Oil/air
Tube focal spot, mm (X-ray tube anode)0.7 x 0.6, 0.9 x 0.7
POWER NEEDED460/480 VAC nominal, 50/60 Hz, 3-phase delta or Wye
Type (CONFIGURATION)Multislice
# of slices (X-ray tube anode)4
FLOOR SPACE NEEDED
Size, m2 (FLOOR SPACE NEEDED)28 minimum
HELICAL SCANNING (DISPLAY)Yes
Max scan time, sec (DISPLAY)120
Max scan volume, cm (DISPLAY)160
Spatial resolution, lp/cm (DISPLAY)Same as axial
Pitch (DISPLAY)0.75:1, 1.5:1 (4-slice mode)
Reconstruction time per image, sec (DISPLAY)0.17
PERFORMANCE
Minimum interscan time, sec (PERFORMANCE)1
Dynamic scan pace (PERFORMANCE)240 scans/min
High-contrast spatial resolution 0% mtf, lp/cm (PERFORMANCE)15.4
50% mtf, lp/cm (PERFORMANCE)8.5
Low-contrast resolution, mm at % at <=4 rads (PERFORMANCE)5 at 0.3% at 1.8 rads; 8" CATPHAN
Sound, % at <= 2.5 rads (PERFORMANCE)0.32 at 2.85 rads
TABLE FEATURES
Range of movement
Vertical, cm (Range of movement)51-107
Longitudinal, cm (Range of movement)170
Scanning range,cm (Range of movement)170
Max. patient weight, (precision), kg (Range of movement)180 (±0.25 mm), 205 (±1 mm)
IMAGE PROCESSING (MAXIMUM DISPLAY)
Cpu (NETWORK/DATABASE)Open architecture/ LINUX
Scan fovs, cm (IMAGE PROCESSING)25, 50
Image reconstruction matrixes (IMAGE PROCESSING)512 x 512
Reconstruction time
Per slice, sec (Reconstruction time)6 frames/sec
For localization scan, sec (Reconstruction time)Real time
GENERATOR
Output, kw (X-RAY GENERATORS)42
Kvp range (GENERATOR)80,100,120, 140
Ma range (IMAGING SYSTEM)10
DISPLAY
MONITOR20" (2), opt flat
Matrixes, pixels (DISPLAY)1280 x 1024
Range of ct numbers (DISPLAY)-1,024 to +3,071
Image enlarging scale (DISPLAY)Up to 8x
Max # slices displayed simultaneously (DISPLAY)16
DICOM 3.0 COMPATIBLE (POWER NEEDED, VAC)Yes
Image storage
Hd capacity, gb (IMAGE STORAGE)146
No. online images (IMAGE STORAGE)250000
Archive (IMAGE STORAGE)2.3 GB MOD, DICOM 3.0
SCORING OF CORONARY ARTERY CALCIFICATION (IMAGE STORAGE)Optional
GANTRY
Geometry (GANTRY)Rotate-rotate, slip ring
DETECTOR (SCATTERED LIGHT)HiLight ceramic
Rows (GANTRY)16
Elements/row (GANTRY)912
# detection channels (GANTRY)4 x 912
Rotation times, sec 360 (GANTRY)0.8,1,2,3, 4; optional 0.5
Slice thickness, mm (GANTRY)0.63,1.25,2.5,3.75,5,7.5, 10
X-ray fan beam angle, ° (GANTRY)55
Gantry angle deg (GANTRY)±30
Gantry size, hxwxd,cm (GANTRY)188.7 x 223 x 100.7
Gantry weight, kg (GANTRY)1269
Gantry opening, cm (GANTRY)70
Scan localizer (GANTRY)Laser
OTHER ATTRIBUTES (Interference compensation)SmartmA-3-D dose modulation, color coding for kids, inroom start, remote tilt, rear gantry control, breathing lights with timer, MPR, Auto Scan/Film/ Voice/Transfer/Archive, SmartPrep, ProtocolPro, ProView ConnectPro, View/Edit Wizard, ImageWorks; Options
FDA CLEARANCE (Interference compensation)Yes
CE MARK (MDD) (Interference compensation)Yes
MARKETING REGION (Interference compensation)Worldwide
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CT Scanner, GE Healthcare, LightSpeed QX/i
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