Dosimetric evaluation of patient setup errors via IG-IMRT / (Record no. 65408)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03770cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031942.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180312s2017 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.12.04.M.Sc.2017.Mo.D |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Abdelmajeed Ibrahim Khalil |
| 245 10 - TITLE STATEMENT | |
| Title | Dosimetric evaluation of patient setup errors via IG-IMRT / |
| Statement of responsibility, etc. | Mohamed Abdelmajeed Ibrahim Khalil ; Supervised Wael M. Elshemey , Ehab M. Attalla , Nashaat Ahmed Deiab |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تقييم قياس الجرعة لأخطاء ضبط المريض عن طريق العلاج الإشعاعي متغيير الشدة الموجة بالتصوير |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Mohamed Abdelmajeed Ibrahim Khalil , |
| Date of publication, distribution, etc. | 2017 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 94 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Biophysics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The goal of radiotherapy treatment is to deliver maximum dose to tumor and minimum dose elsewhere. During fractionated radiation therapy, setup errors are an inherent part of the radiation treatment process. Image Guided Radiation Therapy (IGRT) can used to increase the agreement between planned treatment and actual delivered dose to patient. In this work setup errors are detected using Kilo-voltage Cone Beam Computed Tomography (kV-CBCT). The specific patient (personalised/individual) setup errors are applied on Head and Neck (H&N) and prostate Intensity Modulated Radiation Therapy (IMRT) treatment plans using Simultaneous Integrated Boost (SIB) technique by varying the plan isocenter in order to evaluate the extent of the effect of setup errors and to investigate their impact on target volumes with the help of Dose-Volume Histogram (DVH) parameters and dosimetric indices. Results show that prostate systematic errors are 0.44, 0.54 and 0.73 mm while random errors are 3.16, 2.46 and 3.87 mm in LR, SI and AP directions, respectively. H&N systematic errors are 0.32, 0.28 and 0.23 mm while random errors are 2.22, 2.26 and 1.83 mm in LR, SI and AP directions, respectively. For 23 H&N patients, significant differences (p-value < 0.05) are reported between original and shifted Planning Target Volumes (PTVs) due to setup errors. After consideration of setup errors for the three investigated target volumes (target-70, target-60 and target-54), the mean dose delivered to 95% of target volume (D95%) is significantly reduced from 58.6 to 57.2 Gy for target-60, significant deteriorations in target dose homogeneity for target-70 and target-60 are measured using the Homogeneity Index (HI) while no significant change in dose conformity is detected using Conformity Index (CI). For 12 prostate patients, at individual level, the D95% is always higher for original isocenter compared to shifted isocenter for target-81 and target-56. The mean D95% value is significantly (p < 0.05) reduced from 78.6 to 73.9 Gy and from 54.4 to 52.8 Gy for target-81 and target-56, respectively. Significant reduction in the dose conformity is observed for target-81 as measured using CI parameter. Significant reduction in the homogeneity of target dose distribution (higher HI values) for shifted targets (50% and 69% for target-81 and target-56, respectively) is also reported compared to original plans |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | IMRT |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Integral dose |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Secondary Malignancies |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ehab M. Attalla , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nashaat Ahmed Deiab , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wael M. Elshemey , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.12.04.M.Sc.2017.Mo.D | 01010110074614000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.12.04.M.Sc.2017.Mo.D | 01020110074614000 | 22.09.2023 | CD - Rom | 74614.CD |