000 03165cam a2200313 a 4500
003 EG-GiCUC
008 160306s2015 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.11.23.M.Sc.2015.Ma.D
100 0 _aMahmoud Mohamed Mahmoud Abdelwahed
245 1 0 _aDose to non-routinely delineated risk organs in left postconservative surgery conformal breast irradiation /
_cMahmoud Mohamed Mahmoud Abdelwahed ; Supervised Ezzat Safwat Saad , Mohamed Abdurrahman Hassan
246 1 5 _aالجرعة الاشعاعية الممتصة للأعضاء غير المقدرة روتينيا في العلاج الاشعاعي للثدي بعد الجراحة التحفظية للثدي الأيسر
260 _aCairo :
_bMahmoud Mohamed Mahmoud Abdelwahed ,
_c2015
300 _a121 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Oncology (Clinical)
520 _a25 patients previously treated at NEMROCK for post-operative loco-regional conformal irradiation after left BCS will be included in the study . Delineation of coronaries of the heart was done using the steps provided by University of Michigan Medical Center ,While the brachial plexus was delineated according to the RTOG & Thyroid gland was delineated manually by its gross appearance.Results: Mid beam cut separation ranged from 16.3 cm to 28.7 cm with mean value ± SD (20.5 ± 3.0) while Central lung distance ranged from 1.1cm to 4.0 cm with mean value ± SD (2.4 ± 0.7) . Maximum heart distance mean value ± SD was 2.9 cm ± 1.1 cm.Conformity index mean value was 1.71 with 0.12 SD. The mean value of breast V45 was 82.12 % with 21.3 % SD. While the mean value of the heart V30 was 3.44 % with 3.59 % SD. And the mean value of the heart Dmean was 3.92 Gy ± 2.02 Gy SD. The mean value of the CA Dmax was 41.9 Gy with 6.60 Gy SD. The mean value of the CA Dmean was 23.4 Gy with 10.9 Gy SD. The mean value of thyroid V40 was 32.7 % with 4.1 % SD while the mean value of thyroid Dmean was 20.6 Gy with 5.3 Gy SD. The brachial plexus Dmax was 46.7 Gy with 3.0 Gy SD while the mean value of the brachial plexus Dmean was 33.7 Gy with 6.4 Gy SD. The maximum heart distance when it was less than 3 cm, the mean of the Dmean of the anterior descending coronary artery was 18.5 Gy with SD 10.9 Gy while when more than 3 cm the mean of the Dmean of the anterior descending coronary artery was 27.9 Gy with SD 9.1 Gy with a P-value 0.030 which is statistically significant. The heart V30 when it was less than 2% the mean of the Dmean of the anterior descending coronary artery was 16.9 Gy with SD 10.5 Gy while when more than 2% it was 29.5 Gy with SD 7.3 Gy with a P-value 0.005 which is statistically significant
530 _aIssued also as CD
653 4 _aBreast cancer
653 4 _aCoronaries of the heart
653 4 _aRadiotherapy
700 0 _aEzzat Safwat Saad ,
_eSupervisor
700 0 _aMohamed Abdurrahman Hassan ,
_eSupervisor
905 _aEnas
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c55370
_d55370