數(shù)字透視系統(tǒng)DR-2000AD原理與結(jié)構(gòu)課件

1、4M CCD Digital RadiographyDR-2000AD數(shù)字透視系統(tǒng)原理與結(jié)構(gòu)DR-2000AD Basic ConfigurationDR-2000AD Series光標(biāo)鍵ENT-ER12245BACKNEXTDELMODERUN検診用注腸検診用DRIP2k單發(fā)2k連續(xù)1k單發(fā)1k連續(xù)部位畫(huà)像格納1 0 0kV3 2 0mA5 0mAsSPOT Full1EXPOSED4 5mAs1 4 0ms1 0 02.01 29kVmAminminBRT- 1- 3- 2- 10+ 1+ 2+ 3TECHPRG.11STOMACHERCPPTCPTCDCUGHSGVGESOPHAGUSB

2、A-ENEMAEasy to select various mode with EL panelAnatomical modeDR mode selection Xray controllerCursor keyDR-2000AD block diagramDistributor 4MCCD1MCCDI.I.X-ray tubeX-ray high voltage generatorRecursive Filter CCD I/FRAM Image ProcessorDisplay I/F High Speed BUSCPU BUSX-rayI/FCPUHDMODLPI/FDICOMOptio

3、nalMonitor forFluoroscopyFRMonitor forRadiographyDR system total resolutionI.I. X Distributor X TV cameraSemi Con-ductor wellVertical CCD1 pixelHorizontal CCDPrinciple of 4M(2000 X 2000) CCDFull Frame TransferPrinciple of 1M(1000 X 1000)CCDInterline TransferPhotosensorVertical CCD 1 pixelHorizontal

4、CCDOutputTV camera Moduration Transfer Function curve 0 500 1000 1500 2000Spatial Frequency(TV line)100805030MTF(%)4MCCD 2100 line SaticonCritical resolution VS Film/screen & CRHole depth(mm)3.53.0 0 1 2 3 4 5 Hole size(mm) 2.52.01.51.0 We realized good resolution equivalent to Film/Screen method as

5、 checked with Burger Phantom+20cm acryl board.CRDR9“DR12“Film/ScreenDR7“Pararell process for Auto grayscale & printCCD cameraWindow/Level adjust convertMonitor TVcorrectLaser PrinterWindow/Level for each image is automatically optimised.We have got nice reputation for this theory. Exam. & Laser prin

6、t are pararell process.Elimination of exposure dose(C/kg)Realtime DSA(Optional)We can provide you general Angio. images within 6 frame/Sec. under (1K) Variable mode.The most up to date Image Process technic Window/Level conversion Image rotation conversion (90/180/270) Realtime zooming Distance meas

7、urement Realtime edge enhance Profile Cine cyclic display ROI Multi-Image display Black/White inversionAdvantages of DR-2000AD seriesUltra high resolution image thanks to 4MCCD & 62mmlarge output & size I.I. Wide latitude,eliminated hallation TV camera. Good fluoroscopy image thanks to motion adapti

8、ve Recursive Filtering. High speed Rad. up to 6 images/1MSec. 1/31/2 exposure dose compared with Film/Screen. Excellent auto grayscale logic essential to auto print. Possible to pararell process both exam. & print. We can expand to PACS by DICOM. Hitachi Toshiba Shimadzu G E Comment DR-2000AD DIStat

9、ion Digitex Pro DSX(6) Digestive Tractus (*5) (*6) (*6) (*6) *5,6 means better than Film/Screen (7) Realtime DSA Op Op (Op) means less than Film/Screen (8) Hard Disk 2-4GB(*7) 2.5GB 4GB *7 1/8 image compressed after 1250 2500/2K clinical evaluation 5000 10000/1K 1000/1K(*8) 4000/1K(*8,9) 475/1K *8 Image uncompressed (9) M O D 2.6GB 2.6GB (*10) 3.5“ *9 As image compressed,20,000/1K(10) Monitor TV 17/21“ 15/17/21” 15/17“ can be recorded . Monocrome Colour Monocrome Colour (Scanning line) 1066 progresive 1108 line 1125 line *10 Work In Progress (Matrix)