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Published byDiane Harrison Modified over 9 years ago
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CT SPECIAL APPLICATIONS
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CT ANGIOGRAPHY
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CT IMAGE OF THE BLOOD VESSEL OPACIFIED BY CONTRAST
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REQUIREMENTS FOR CTA PATIENT PREPARATION ACQUSITION PARAMETERS CONTRAST MEDIUM ADMINISTRATION POSTPROCESSING TECHNIQUES
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PATIENT PREP. BUN 7-20 mg/dl CREAT.- 0.6 –1.2 mg/dl IODINE ALLERGY- STEROID THERAPY HYPERVENTILATION BEFORE EXAM FOR BETTER BREATHOLD
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CONTRAST ADMINISTERED WITH POWER INJECTOR
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POWER INJECTOR PARAMETERS VOLUME OF CONTRAST-ml RATE ml/sec TIME OF INJECTION – sec SCAN DELAY TIME - sec
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CONTRAST WARMER WHY???
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CARE BOLUS
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ACQUSITION PARAMETERS
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PE?
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Circle of Willis
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Circle of Willis?! 40 SEC
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ABDOMINAL CTA
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CTA - MPR PLANE?
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ABDOMINAL AND FEMORAL RUNOFF
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CARDIAC CT
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CARDIAC CT PROCEDURES CARDIAC ANGIOGRAM CALCIUM SCORING
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NO IV CONTRAST USED
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CALCIUM SCORING
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CARDIAC ANGIOGRAM PERFORMED WITH CONTRAST INJECTION 4-5 cc/sec 150 cc total volume
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CARDIAC ANGIOGRAM
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CINE CTA
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VIRTUAL ENDOSCOPY USE OF VIRTUAL REALITY CONCEPTS TO THE CREATION OF INNER VIEWS OF TUBULAR STRUCTURES
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VIRTUAL ENDOSCOPE GRAPHICS-BASED SOFTWARE USED FOR SIMULATING ENDOSCOPIC EXPLORATION INSIDE A 3-D IMAGE
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APPLICATION OF VIRTUAL ENDOSCOPY COLONOSCOPY BRONCHOSCOPY CHOLANGIOPANCREATOSCOPY SINUS ENDOSCOPY BLADDER SPINAL CANAL ENDOSCOPY VESSEL ENDOSCOPY- ANGIOSCOPY NEURONS UTERUS & FALLOPIAN TUBES
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COLONOSCOPY
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BRONCHOSCOPY
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VENTRICULOSCOPY
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CORONARY ENDOSCOPY
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HYSTERO-SALPINGOSCOPY
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SPINAL CANAL SCOPE
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DISADVANTAGE OF VIRTUAL ENDOSCOPY HIGH COST LACK OF QUANTITATIVE DATA INABILITY OF PERFORMANCE OF REAL INTERVENTIONAL PROCEDURE WITHOUT REAL ENDOSCOPE NO INFO ON MUCOSAL SURFACE IMAGE QUALITY LIMITED BY RESOLUTION OF SYSTEM.
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CT FLUORO
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CONVENTIONAL CT LIMITATION LACK OF REAL TIME IMAGE DISPLAY DATA COLLECTION IMAGE RECON LAG!!
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FUNDAMENTAL PRINCIPLES OF REAL TIME IMAGING FAST CONTINUOUS SCANNING FAST IMAGE RECONSTRUCTION CONTINUOUS IMAGE DISPLAY
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RADIATION TREATMENT
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The 65 cm variable field of view delivers 15 additional cm of visual coverage, allowing clinicians to see a patient’s entire anatomy, facilitating precise radiation therapy planning
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Quantitative CT MEASUREMENT OF MINERAL CONTENT OF TRABECULAR BONE IN OSTEOPOROSIS BMD
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QUANTITATIVE CT - STEPS SCOUTSLICE SELECTION AXIAL IMAGES AUTOMATIC CANTOUR TRACING ROI MEAN VALUE CALCULATION ROI VALUE CONVERTED TO BMD VALUE GRAPHIC OUTPUT, GRAPH BMD vs AGE, COMPARISON PERFORMED
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XENON CT INHALATION OF XENON GAS.
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XENON CT Z # 54
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XENON- IDEAL GAS FOR STUDYING BRAIN FUNCTION AND CEREBRAL BLOOD FLOW HIGH Z# - HIGH ATTENUATION HIGH FAT SOLUBILITY ABILITY TO CROSS BLOOD BRAIN BARRIER
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XENON CT USEFUL IN EVALUATING REGIONAL PERFUSION IN CEREBROVASCULAR DISEASE AND STUDYING BRAIN METABOLISM. CLINICAL ROLE IN STUDYING: DEMENTIA, SLEEP DISORDERS, MIGRANES, AND EPILEPSY
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