GE Healthcare, LightSpeed VCT 制造商规范.doc

GE Healthcare, LightSpeed VCT 制造商规范 X-RAY TUBE ANODE Heat storage, hu (X-ray tube anode) 8,0,000 Heat dissipation rate, hu/min (X-RAY TUBE) 1782000 Tube focal spot, mm (X-ray tube anode) 0.7 x 0.6, 0.9 x 0.9 POWER NEEDED 460/480 VAC nominal, 50/60 Hz, 3-phase delta or Wye Type (CONFIGURATION) Multislice # of slices (X-ray tube anode) 64 Image storage Hd capacity, gb (IMAGE STORAGE) 146 FLOOR SPACE NEEDED Size, m2 (FLOOR SPACE NEEDED) 28 minimum SCORING OF CORONARY ARTERY CALCIFICATION (IMAGE STORAGE) Optional DICOM 3.0 COMPATIBLE (POWER NEEDED, VAC) Yes DISPLAY MONITOR 20 (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 GENERATOR Output, kw (X-RAY GENERATORS) 100 Ma range (IMAGING SYSTEM) 10 TABLE FEATURES Vertical, cm (Range of movement) 51-107 Max. patient weight, (precision), kg (Range of movement) 180 (±0.25 mm), 205 (±1 mm) HELICAL SCANNING (DISPLAY) Yes Max scan time, sec (DISPLAY) 120 Max scan volume, cm (DISPLAY) 170 Spatial resolution, lp/cm (DISPLAY) Same as axial Pitch (DISPLAY) 0.5625:1, 0.9375:1, 1.375:1, 1.75:1 Reconstruction time per image, sec (DISPLAY) 0.063 PERFORMANCE Minimum interscan time, sec (PERFORMANCE) 1 Dynamic scan pace (PERFORMANCE) 960 scans/min High-contrast spatial resolution 0% mtf, lp/cm (PERFORMANCE) 15.4, 19.6-Z Low-contrast resolution, mm at % at =4 rads (PERFORMANCE) 5 at 0.3% at 1.3 mGy 8 CATPHAN Sound, % at = 2.5 rads (PERFORMANCE) 0.32 at 2.85 rads Image reconstruction matrixes (IMAGE PROCESSING) 512 x 512 Reconstruction time For localization scan, sec (Reconstruction time) Real time GANTRY Geometry (GANTRY) Rotate-rotate, slip ring DETECTOR (SCATTERED LIGHT) HiLight ceramic Rows (GANTRY) 64 Elements/row (GANTRY) 912 # detection channels (GANTRY) 64 x 912 Rotation times, sec 360 (GANTRY) 0.4,0.5,0.6,0.7,0.8,0.9,1,2,3, 4; optional 0