Uploaded byAnees Muhammed
Image guided radiation therapy (IGRT)
The document discusses image-guided radiation therapy (IGRT), highlighting technologies such as 2D and 3D imaging, cone beam computed tomography (CBCT), and ultrasound systems used for precise tumor targeting. It explains the advantages of different imaging modalities and their role in treatment planning, including 4D computed tomography for managing respiratory motion. Furthermore, it mentions various tracking systems and the application of MRI-guided radiation therapy.
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Image guided radiation therapy (IGRT)
- 1. Image-Guided Radiation Therapy MUHAMMED ANEES.K MScRADIATION PHYSICS UNIVERSITYOF CALICUT 1
- 2. The process offrequent imaging (2D / 3D), before and during course of radiation treatment merit static & mobile targets 2
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- 11. 1- Portal &Radiographic Imagers (a) (b) 256 × 256 solid state detectors Two Imaging system 11
- 12. Electronic Portal ImagingDevice (EPID) 12
- 13. On-board imaging EPID Cone beam CT 256× 256 solid state detectors 13
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- 17. High-Resolution 3-D Patient Anatomy HelptoTarget Localization Dose Distribution 17
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- 19. 3 Cone BeamComputedTomography 19
- 20. Cone Beam Formation ConeBeam 20
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- 23. Advantages of Mv-CBCTover Kv-CBCT 23
- 24. Advantages of kV-CBCTover MV-CBCT 24
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- 29. Linac Ring Gantry Couch Multi Leaf Collimator ImagingDetector Beam Stop 29
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- 33. US 2-D or 3-Dultrasound imaging system integrated with Medical Linac BAT system 33
- 34. What Can wedo With the Images ? or 34
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- 37. Management of RespiratoryMotion 4D- ComputedTomography Real-TimeTumorTracking 37
- 38. 1, 4-D ComputedTomography 38
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- 42. 4-D CT DataAcquisition Prospective Gating Retrospective Gating 42
- 43. 43 images are collectedonly at one phase of the respiratory cycle Or Registration of the CT images After Data of Respiratory Phases the have been acquired 1, Prospective Gating scan data are acquired at all phases of respiration and the correlation
- 44. 2. Retrospective Gating 44 thebeam on only at the selected times of respiration Including both Inspiration and Expiration
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- 48. Fluoroscopy-BasedTracking Systems These systemsare discussed below as examples……., 48
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- 62. REFERENCE Treatment Planningin Radiation Oncology by F M Khan Physics of RadiationTherapy (4th Edition ) by F M Khan Overview of Image-Guided RadiationTherapy by Lei xing, Ph.D,BrianThorndyke, Ph.D ,University of Stanford IMRT, IGRT, SBRT – Advances in theTreatment Planning and Delivery of Radiotherapy by John L. Meyer 62
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