000 02355cam a2200349 a 4500
003 EG-GiCUC
005 20250223031100.0
008 141028s2014 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.12.04.Ph.D.2014.Ad.I
100 0 _aAdly Fawzy Abdelsalam Naga
245 1 0 _aInvestigation of cone-beam computed tomography (CBCT) in conventional & intense modulated radiotherapy (IMRT) /
_cAdly Fawzy Abdelsalam Naga ; Supervised Anwar Abdelazeim Elsayed , Ehab Marouf Attalah , Mohamed Lotayef,
246 1 5 _aبحث الاشعة المقطعية الالية ذات الشعاع المخروطى فى العلاج الاشعاعى التقليدى والمتغير الشدة
260 _aCairo :
_bAdly Fawzy Abdelsalam Naga ,
_c2014
300 _a94 Leaves :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Biophysics
520 _aPurpose: Needs to employ quality assurance (QA) programs that ensure that the system performance meets high expectations consistent with patient care requirements. And to improve target localization accuracy, so that PTV treatment margin can be adjusted or reduced. Materials and Methods: Recently installed an Elekta Synergy linear accelerator with energy 6MV (Elekta, Synergy S, XVI, Crawley, UK) system. Catphan 503 phantom to evaluate CBCT image quality. Ball-Bearing Phantom to evaluate the geometric accuracy of kV and MV isocenters. Quasar{u2122} Penta-Guide Phantom for daily quality assurance (QA). Results: In the present study over a period of 12 months showed that, MV and kV isocenters with mean value of 0.10±0.29mm, -0.07±0.37mm, 0.04±0.28mm and the maximal deviation were 0.45mm, -0.55mm and -0.47mm in x (lateral), y (longitudinal) and z (height) respectively
530 _aIssued also as CD
653 4 _aCone-beam computed tomography (CBCT)
653 4 _aIntense modulated radiotherapy (IMRT)4
653 4 _aQuality assurance (QA)
700 0 _aAnwar Abdelazeim Elsayed ,
_eSupervisor
700 0 _aEhab Marouf Attalah ,
_eSupervisor
700 0 _aMohamed Lotayef ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aAml
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c47999
_d47999