I-Image-guided radiation therapy (IGRT) yindlela yokwelapha ngemisebe ehlanganisa amasu e-imaging okwelashwa ngemisebe.Phakathi nenqubo yokwelashwa kweziguli, izimila kanye nezitho ezivamile zingabhekwa ngesikhathi sangempela, futhi uhla lwe-irradiation lungalungiswa ngesikhathi.Izinto eziningi, njengokunyakaza kokuphefumula komuntu, ukuhamba kwesisu, iphutha lokuma kwe-radiotherapy ngayinye, kanye nokuncipha kwendawo okuqondiswe kuyo isimila, kungabangela ukusatshalaliswa kwemithamo ye-radiotherapy yangempela kuhluke kakhulu kuleyo esekwenziweni kwezinhlelo ze-radiotherapy.I-IGRT ingakwazi ukulawula ngokunembile ukunyakaza kwezicubu ze-anatomical ngesikhathi sokwelashwa kanye nephutha lokufuduka phakathi kokwelashwa okuyingxenye, futhi ingalungisa izimo zokwelashwa ngokuvumelana ngokuvumelana nezinguquko endaweni yesitho sesiguli, ukuze insimu yokukhipha imisebe ingakwazi "ukulandela" eduze indawo ehlosiwe.
Ubuchwepheshe be-imaging ye-Cone-beam computed tomography (CBCT) njengamanje buwubuchwepheshe obusetshenziswa kakhulu be-radiotherapy obuqondiswa yisithombe.Isebenzisa umtshina we-amorphous silicon yedijithali ye-X-ray flat-panel yendawo enkulu, futhi ingathola futhi yakhe kabusha izithombe ze-CT ngaphakathi kwevolumu ethile ngokuzungezisa okukodwa kwe-gantry.Imodeli yesithombe esakhiwe kabusha se-3D yesithombe se-CT kulo mqulu singafaniswa futhi siqhathaniswe nemodeli yesiguli yesistimu yokuhlela ukwelashwa (TPS), futhi amapharamitha adinga ukulungiswa ngombhede wokwelapha abalwa ngokuzenzakalelayo.
Uchungechunge lwe-Whale4343/3030 lwe-amorphous silicon X-ray flat panel detectors ezithuthukiswe ngokuzimela futhi zaklanywa i-Haobo, ezinesilinganiso sohlaka olumaphakathi nokusebenza okuguquguqukayo, ukuvikela uthuli nokungangeni kwamanzi, izinga lokuvikela i-16MV high-energy ray, zinokunemba okuphezulu, isithombe esicacile kanye nokulungiswa kwesithombe okuphezulu. Iphezulu, ifanele izimo zohlelo lokusebenza lwe-accelerator njengokwenziwa kwasendaweni kwesimila kanye ne-radiotherapy.
Izincomo zomkhiqizo wehadiwe
Isikhathi sokuthumela: Jul-14-2022