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Related Flashcards
Cards In This Set
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WHAT IS THE MAIN DIFFERENCE BETWEEN CT AND GENERAL XRAY?
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CT IMAGES ARE CROSS-SECTIONAL OR AXIAL.
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WHAT IS THE PRIMARY DETERMINANT OF ABSORBTION OF RADIATION?
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PATIENT SIZE
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WHAT TRANSLATES THE INFO FROM THE TECH CONSOLE AND SENDS IT TO THE SCAN CONTROLLER?
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HOST COMPUTER
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SCAN CONTROLLER CONTROLS WHAT?
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TIMING AND OPERATION OF TABLE, GANTRY, AND HIGH VOLTAGE GENERATOR.
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SIGNALS FROM THE SCAN CONTROLLER MUST BE CONVERTED FROM ANALOG WAVE FORM BY THE _________
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ADC
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WHAT IS RESPONSIBLE FOR THE HIGH POTENTIAL BETWEEN THE CATHODE AND ANODE?
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HIGH VOLTAGE GENERATOR
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RAW DATA IS AQUIRED HOW?
STEP-STEP..
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XRAYS ATTENTUATED-DETECTOR-AMPLIFIER-SAMPLE HOLD COMPONENT-ADC CONVERTER-HOST COMPUTER
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1ST GENERATION CT SCANNER SCANNED WHAT BODY PART ONLY?
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HEAD
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2ND GENERATION CT SCANNERS WERE THE FIRST TO HAVE THIS TYPE OF BEAM AND TYPE OF DETECTORS..
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FAN BEAM AND DETECTOR ARRAY(APPROX. 30 DECTECTORS)
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3RD GENERATION SCANNERS INTRODUCED WHAT?
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BOTH THE TUBE AND THE DETECTORS ROTATE AROUND THE PT CONTINUOUSLY.
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4TH GENERATION DETECTORS ARE USED MOST COMMONLY OR HARDLY EVER?
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HARDLY EVER, 3RD IS MOST COMMON.
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CONTINUOUS SCANNING IS MADE POSSIBLE BY THIS TYPE OF TECHNOLOGY(SINGLE PART.)
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SLIP RING TECHNOLOGY
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SLIP RING TECHNOLOGY WAS MADE TO HELP ELIMINATE THE WINDING OF THIS PART?
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TENSION COIL ATTACHED FROM THE HIGH VOLTAGE GENERATOR
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WHAT CONVEYS OPERATING INSTRUCTIONS FROM THE HOST COMPUTER TO THE GANTRY?
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SLIP RINGS
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MULTI-ROW DETECTORS SCANNERS COLLECT ______ SLICES FROM THE USE OF _________ _________ __________?
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MULTIPLE, MULTIPLE PARALLEL DETECTOR ARRAYS
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