GE Philips Siemens PET-CT 参数对比

Company Name

GE Healthcare Modelproduct name

Optima PET/CT 560 FDA-cleared, year 2011

Scanner Characteristics

Gantry dimensions, H x W x D, cm

193 x 225 x 146 Weight, kg (lb)

4,916 (10,834) Power requirements, PETCT

150 kVA max, 30 kVA average Heat load

6.3 MHU Gantry cooling

Air cooled Patient port

70 cm Transmission source

CT attenuation correction Patient Handling System

Vertical travel, cm

2.5 to 20.5 below isocenter Patient scan range, cm

Standard: 170; option: 200 Horizontal speed, mmsec

100 Maximum patient weight, kg (lb)

226 (500) Pallet deflection

NS Gantry controls on front & back of gantry (yesno)Yes

Sotware Processing

Whole body acquisition time, with attenuation

correction and processing

Physician preference Acquisition modes 3-D, 4-D Reconstruction time, 2-D mode, 128 x 128,

OSEM-IR NA Event transfer rate

1,968 Hz max sample rate Correction for contrast in patient Yes

Measured & automated randoms correction

(yesno)Yes Measured & automated scatter correction (yesno)

Yes Simultaneous acquisitionprocessing (yesno)

Yes Automated standard uptake value creation

(yesno)Yes Weighted Least Square (WLS) reconstruction

(yesno)Yes Attenuation weighted iterative reconstruction

Yes One-click whole body PET protocol (yesno)

Yes

PET Physical Assembly

Number of detectors

24 Number of image planes

47 Plane spacing, mm

3.27 Number of crystals

12,288 Ring diameter 88.6 cm NS

45 secframe Reconstruction time, 3-D mode, 128 x 128, Fore-

IT-WLS

What are the key differentiating features of your system

Install time Aprox. 10 business days

Number of PMTs

1,024 (256 quad-anode) Physical axial FOV, cm

15.7 Effective axial FOV in whole body, cm - 3-D

12.1 Detector material

BGO Stopping pwer for 511 keV photons

0.95 Hygroscopic

No Crystal size, mm

4.7 x 6.3 x 30

PET Performance System sensitivity - 2-D, kcpsuCicc LLD (NEMA 2001)NA

NEMA performance standards: 5; VUE Point HD: 4

NEMA performance standards: 5.6; VUE Point HD: 4.5 NEMA performance standards: 5.6; VUE Point HD: 5 NEMA performance standards: 6.3; VUE Point HD: 5 Peak noise equivalent count rate, kcps (NEMA

2001)54 kcps @ 15 KBqml 2-D

NA 3-D

Yes Scatter fraction - 2-D (NEMA 2001)

NA Scatter fraction - 3-D (NEMA 2001)

38%

CT Physical Assembly

Type of detector

Volara DAS Generator output, kW

53.2 kV-RangemA-Range

Max mA at 120kV is 440 mA Anode heat storagecoolingmin.

6.3 MHU and 284 kHUmin Tube focal spot, mm

0.7 x 0.6, 0.9 x 0.7 Gantry dimensions, cm

193 x 225 x 146 Gantry weight, kg (lb)

Integrated, see above CT Image Quality

LC resolution (20 cm catph.surface)

5 mm @ 0.30% at 13.3 mGy CTDI (dose100 mAs) B 1

6 cm phant.

Axial head: 18.4mGy Axial Body: 9.3mGy Max HC resolution (2% MTF)

15.4 lpcm @ 0% MTF Standard HC resolution (2% MTF)

8.5 lpcm @ 0% MTF CT Scan Parameters

Scan field, cm

70 Number of slices

8 or 16 Slice thickness, mm

8 slice: 1.25; 16 slice: 0.625 Rotation speed

0.5, 0.6, 0.7, 0.8, 0.9, 1 Topogram length, mm

1,700 or 2,000 Reconstruction time: Std.High res.Topo

6 FPS16 FPS Scan matrixdisplay matrix

1,024 x 1,024 Max. spiral volumemax. spiral scan time

20 mm coverageslice ConsoleComputerStorage

Host computer Quad Core Xeon CPU System sensitivity - 3-D, kcpsuCicc LLD (NEMA 2001)

6.5 cpskBq

Transverse resolution @ 1 cm, mm (NEMA 2001)

Transverse resolution @ 10 cm, mm (NEMA

2001)

Axial resolution @ 10 cm, mm (NEMA 2001)

Axial resolution @ 1 cm, mm (NEMA 2001)

Number elementschannelsfan beam

21,888 elements Scan times (partial)subsec (partial)

Physician preference

User interface PETCT Console Archival storage PACS

DICOM 3.0 PET Yes

DICOM 3.0 CT Yes

Special Features NS

Philips Healthcare

Siemens Healthcare Ingenuity TF (PET/CT)

Biograph mCT Yes

2012 Astonish TF allows fast TOF scans, low

TrueV PET LFOV (21.6 cm), HDPET,dose,excellent image quality; iDose4

ultraHDPET, multiple CT slices (40,provides high image quality at low dose;

64.128), multiple dose lowering iPatient facilitates personalized,

technologies, scalable upgradeability,patient-centered imaging

tin-client solutions 213 x 225 x 549

204 x 234 x 136 4,201 (9,262)

3,980 (8,755), with TrueV 480 VAC, 5060 Hz, 100 kVA (max)

4.8 kW PET, 3.2 kW CT 27,950 BTUhr

2 kW Air cooled

Yes OpenView gantry (70 cm for PETCT)

78 cm CT

CT 12 days total: phase I = 7 days

mechnical and 5 days; phase 2 = 5 days

commissioning

35.5 53 - 96

190 198, with TrueV

150 0 - 200

195 (430) 500 lbs

< 2 mm No differential deflection

4 sets of gantry controls, 2 each side Yes

Approx. <10 minutes < 8 min.

3-D, 4-D TOF (respiratory gating) 3-D

NA NA

< 1 min. bed with list mode TOF,

concurrent

158 MBytes sec

300 M events sec. Yes

Yes Yes

Yes 28 pixelar modules

192, with TrueV 45 or 90

109, with TrueV 2 or 4

2 28,336

32,448, with TrueV 90 cm 842 mm

<1 min. per bed 8-10 days

420

4 per block 18

16.2 (standard); 21.6 wTrueV(optional) NS

12.6 wTrueV LYSO

LSO High

High No

No 4 x 4

4 x 4 x 20 7,400 cpsMBq @ 10 cm; > 19,900 wtime of flight

NA 120 kcps @ 19 kBqml > 320 kcps wTOF NS NA

NA 120 kcps @ 19 kBqml > 320 kcps w TOF 175 NA

NA 0.3

< 34% Solid State - GOS

UltraFast Ceramic 128 or 64 or 40 detectors, 736elementsrow, 1,472 channelsrow 80, (105 effective)

80 - 100 80 - 140 kVp 20 - 665 mA

80 - 140 kVP 20 - 800 mA 8 MHU1,608 kHUmin

0 MHU 5,000 kHU 1 x 1 0.5 x 1

0.7 x 0.7 0.9 x 1.1 Integrated, see above

204 x 234 x 136 Integrated, see above

3,977 (8,750) 4.0 mm @ 0.3%

5 mm @ 3 HU @ 9.9 mGy 12.9 mGy100 mAs

40, 64 slice: 9.3; 128 slice: 8.5 24.0 lpcm (at cutoff)

24 lpcm (option) 13.0 lpcm (at cutoff)

22 lpcm Partial 240deg: 0.28, 0.33; Full: 0.4,0.5, 0.75, 1, 1.5, 2

up to 70

78 64 or 128

0.5 - 12.5

0.1 - 10 0.4 - 2 sec.

0.3 - 1 sec. 190 cm

128 - 2,048 Up to 20 imagessec

Up to 40 imagessec. 512x512, 768x768, 1024x1024 512 x 512, 1,024 x 1,024 190 cm 100 sec

198 cm 80 sec. Dell PC workstation Windows

9.5 435 keV with TrueV 4.7

4.4

5.2

4.9 Partial: 0.22-0.72; full: 0.3-1 4.7

4.5

5.2

5.9 128: 43,008 (86,016 effective)

iPatient syngo

CDDVD-R, DVD-RAM MOD CD-R DVD

Yes Yes

Exclusive state-of-the-art Astonish TF,5-min. whole body PET CT imaging with 2mm recon, and PSF technology for the highest NEMA resolution available; improved lesion detection integrated128-slice CT for advanced cardiac hybrid with iDose4 and O-MAR on the iPatient exams; syngo.via ready

platform. Exclusive OpenView gantry

design.