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CT SPECIAL APPLICATIONS

CT SPECIAL APPLICATIONS. CT ANGIOGRAPHY. CT IMAGE OF THE BLOOD VESSEL OPACIFIED BY CONTRAST. REQUIREMENTS FOR CTA. PATIENT PREPARATION ACQUSITION PARAMETERS CONTRAST MEDIUM ADMINISTRATION POSTPROCESSING TECHNIQUES. PATIENT PREP. BUN 7-20 mg/dl CREAT.- 0.6 –1.2 mg/dl

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CT SPECIAL APPLICATIONS

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  1. CT SPECIAL APPLICATIONS

  2. CT ANGIOGRAPHY

  3. CT IMAGE OF THE BLOOD VESSEL OPACIFIED BY CONTRAST

  4. REQUIREMENTS FOR CTA • PATIENT PREPARATION • ACQUSITION PARAMETERS • CONTRAST MEDIUM ADMINISTRATION • POSTPROCESSING TECHNIQUES

  5. PATIENT PREP. • BUN 7-20 mg/dl • CREAT.- 0.6 –1.2 mg/dl • IODINE ALLERGY- STEROID THERAPY • HYPERVENTILATION BEFORE EXAM FOR BETTER BREATHOLD

  6. CONTRAST ADMINISTERED WITH POWER INJECTOR

  7. POWER INJECTOR PARAMETERS VOLUME OF CONTRAST-ml RATE ml/sec TIME OF INJECTION – sec SCAN DELAY TIME - sec

  8. CONTRAST WARMER WHY???

  9. CARE BOLUS

  10. ACQUSITION PARAMETERS

  11. PE?

  12. Circle of Willis

  13. Circle of Willis?! 40 SEC

  14. ABDOMINAL CTA

  15. CTA - MPR PLANE?

  16. ABDOMINAL AND FEMORAL RUNOFF

  17. CARDIAC CT

  18. CARDIAC CT PROCEDURES • CARDIAC ANGIOGRAM • CALCIUM SCORING

  19. CALCIUM SCORING NO IV CONTRAST USED

  20. CALCIUM SCORING

  21. CARDIAC ANGIOGRAM PERFORMED WITH CONTRAST INJECTION 4-5 cc/sec 150 cc total volume

  22. CARDIAC ANGIOGRAM

  23. CINE CTA

  24. VIRTUAL ENDOSCOPY • USE OF VIRTUAL REALITY CONCEPTS TO THE CREATION OF INNER VIEWS OF TUBULAR STRUCTURES

  25. VIRTUAL ENDOSCOPE GRAPHICS-BASED SOFTWARE USED FOR SIMULATING ENDOSCOPIC EXPLORATION INSIDE A 3-D IMAGE

  26. APPLICATION OF VIRTUAL ENDOSCOPY • COLONOSCOPY • BRONCHOSCOPY • CHOLANGIOPANCREATOSCOPY • SINUS ENDOSCOPY • BLADDER • SPINAL CANAL ENDOSCOPY • VESSEL ENDOSCOPY- ANGIOSCOPY • NEURONS • UTERUS & FALLOPIAN TUBES

  27. COLONOSCOPY

  28. BRONCHOSCOPY

  29. VENTRICULOSCOPY

  30. CORONARY ENDOSCOPY

  31. HYSTERO-SALPINGOSCOPY

  32. SPINAL CANAL SCOPE

  33. 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.

  34. CT FLUORO

  35. CONVENTIONAL CT LIMITATION • LACK OF REAL TIME IMAGE DISPLAY DATA COLLECTION IMAGE RECON LAG!!

  36. FUNDAMENTAL PRINCIPLES OF REAL TIME IMAGING • FAST CONTINUOUS SCANNING • FAST IMAGE RECONSTRUCTION • CONTINUOUS IMAGE DISPLAY

  37. RADIATION TREATMENT

  38. The 65 cm variable field of viewdelivers 15 additional cm of visualcoverage, allowing clinicians tosee a patient’s entire anatomy,facilitating precise radiation therapyplanning

  39. Quantitative CT • MEASUREMENT OF MINERAL CONTENT OF TRABECULAR BONE IN OSTEOPOROSIS BMD

  40. QUANTITATIVE CT - STEPS SCOUT SLICE SELECTION AXIAL IMAGES AUTOMATIC CANTOUR TRACING ROI ROI VALUE CONVERTED TO BMD VALUE MEAN VALUE CALCULATION GRAPHIC OUTPUT, GRAPH BMD vs AGE, COMPARISON PERFORMED

  41. XENON CT • INHALATION OF XENON GAS.

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