GE磁共振简称.doc

GlossaryACGDAdvanced Concept Gradient DriverAGPApplications Gateway Processor [Board]APArray Processor BoardAPMAnalog Power Monitor [Board]APSAuto prescan: Auto-adjustment of data acquisition (scan) parametersAPSAcquisition Processing System [Board]AVSAuto voxel shimAWSAutomatic Water SuppressionBRMBody Resonance ModuleBRMBody Resonance ModuleCANControl Area Network [Board]CCCCAN Core Communication [Board]CRMCardiac Resonance ModuleCRTCathode Ray TubeCRYOGENA substance for producing low temperatures. Liquid helium is the cryogen used to cool the magnet to approximately 4 Kelvin (269 C or 452 F).CRYOSTATAn apparatus maintaining a very low constant temperature. The cryostat consists of one concentric, cylindrical container housed in an outer vacuum tight vessel. The magnet and shim coils are mounted in the inner container. The container is filled with liquid helium. The shields surrounding the inner container are kept cold by a refrigeration device.CVControl variableDCBDriver Control BoardDEWARA container with an evacuated space between two highly reflective walls used to keep low temperature substances at nearconstant temperatures. Liquid helium is usually stored and shipped in dewarsDMDriver ModuleDRF1Digital Receive Filter 1 [Board]DSPDigital Signal ProcessingEXCLUSION ZONEArea where the magnetic flux density is greater than five gauss. Personnel with cardiac pacemakers, neurostimulators and other biostimulation devices must NOT enter this zone. Signs are posted outside the five gauss line alerting personnel of this requirement. Since the magnetic field is threedimensional, signs are also posted on floors above and below the Magnet Room in which the five gauss line exists.FERROUS MATERIALAny substance containing iron which is strongly attracted by a magnetic field.FOFiber OpticFOVField of ViewFPIOFront Panel Input/Output [Board]FWHMFull Width Half MaxGAUSS (G)A unit of magnetic flux density. The earths magnetic field strength is approximately one half gauss to one gauss depending on location. The internationally accepted unit is the tesla (1 Tesla = 10,000G and 1 milli Tesla =10G).整理为word格式GPGradient Processor [Board]GRADIENTThe amount and direction of the rate of change in space of the magnetic field strength. In the magnetic resonance system, gradient amplifiers and coils are used to vary the magnetic field strength in the x, y, and z planes.GRxGraphic PrescriptionHFA High Fidelity Gradient AmplifierHFDHigh Fidelity Gradient DriverHOMOGENEITYUniformity. The homogeneity of the static magnetic field is an important quality of the magnet.ICNImage Compute Node.  A component with an internal operating system (similar to a PC) used for Image reconstruction in the VRE.  Contains hard drives and an operating systemICWInstallation Calibration Wizard.  This wizard is available in two different modes: Install and Upgrades.  It can be found in the proprietary Common Service Desktop under the "Calibration" tab.  Maintenance mode is available after all calibrations and tasks in the install mode are complete.IFCCImage file create and cleanupINFINIBANDHigh-speed communication, analogous to Ethernet but much higher speed and capacity.  Used for transporting large amounts of data for within the volume reconstruction subsystemIRFInterface and Remote Functions [Board]IRF I/OInterface and Remote Functions Input/Output [Board]ISOCENTERCenter of the imaging volume ideally located at the magnet center.ISOGAUSS LINEAn imaginary line or a line on a field plot connecting identical magnetic field strength points.IT HostImage Transfer Host [Board]IT-MGDImage Transfer-MGD [Board]LCDLiquid Crystal DisplayLEDLight Emitting DiodeLOLocal OscillatorLPCALow Profile Carriage AssemblyMAGNETIC FIELD (H)The space around a magnet (or current carrying conductor) which can produce a magnetizing force on a body within itMAGNETIC RESONANCE (MR)The absorption or emission of electromagnetic energy by nuclei in a static magnetic field, after excitation by a suitable radio frequency field.MAGNETIC SHIELDINGUsing material (e.g. steel) to redistribute a magnetic field , usually to reduce fringe fields.MCMultiCoilMCDMultiCoil Driver [Board]MCQAMulti Coil Quality Assurance.  This is a tool that will check the coil SNR and be able to trend it for each coil over time.MGDMulti-Generational Data acquisition [Chassis]MPSManual prescan: Manual adjustment of data acquisition (scan) parameters整理为word格式MRSMagnetic Resonance SpectroscopyMUXMultiplexor [Board]NEXNumber of excitationsOMOxygen MonitorOWOperator WorkspacePACPhysiological Acquisition ControllerPCIPeripheral Component InterconnectPDUPower Distribution UnitPMCPCI Mezzanine ConnecterPPPenetration PanelPRESSPoint-resolved spect。