Saad Aldelaijan

Name: Saad Aldelaijan, MSc

Level at MPU: PhD

Email: saad.aldelaijan [at] mail.mcgill.ca

Supervisor(s): Dr. Slobodan Devic, Dr. Louis Collins, Dr. Ivan Buzurovic, Dr. Jan Seuntjens

Research interests: Radiochromic film dosimetry, brachytherapy quality assurance, Image-guided brachytherapy

 

Research summary

The introduction of three dimensional (3D) imaging modalities into brachytherapy (BT) has facilitated the transition from 2D BT to 3D image-guided brachytherapy (IGBT). This in turn allowed dose escalation to tumor volumes resulting in better clinical outcomes. Specific quality assurance (QA) procedures are well defined for the use of different anatomical imaging modalities (CT, MRI, US) in external beam radiotherapy (EBRT). Protocols and QA guidelines also exist for different kinds of BT treatments. However, the introduction of image-guidance into BT process should be associated with an update to current QA protocols taking into account different uncertainties that would affect clinical outcomes. Advanced QA methodologies are required for the use of different machines (imaging and BT) at different phases of the treatment process. Favorably, radiochromic film (RCF) dosimetry offers a high resolution 2D solution that can be applied at different stages in the BT process. The overall objective of this research is to develop a novel approach in quality assurance of image-guided brachytherapy using radiochromic film dosimetry. This includes QA of devices, sources, treatment plans and in-vivo dosimetry. 


Key publications

  1. 2017 S. Aldelaijan, H. Bekerat, I. Buzurovic, P. Devlin, F. DeBlois, J. Seuntjens, S. Devic “Dose comparison between TG-43 based calculations and radiochromic film measurements of the Freiburg flap applicator used for high-dose-rate brachytherapy treatments of skin lesions.” Brachytherapy 16 (5), 1065-1072
  2. 2017 S. Aldelaijan, S. Wadi-Ramahi, A. Nobah, B. Moftah, S. Devic, N. Jastaniyah. “Commissioning of applicator-guided SBRT boost with HDR Brachytherapy for Advanced Cervical Cancer.” 16(4), 893-902
  3. 2016 Devic, Slobodan, Huriyyah Mohammed, Nada Tomic, Saad Aldelaijan, François De Blois, Jan Seuntjens, Shirley Lehnert, and Sergio Faria. "FDG-PET Based Differential Uptake Volume Histograms: A Possible Approach Towards Definition of Biological Target Volumes." The British Journal of Radiology, 20150388
  4. 2015 Saad Aldelaijan, Faisal Alzorkany, Belal Moftah, Ivan Buzurovic, Jan Seuntjens, Nada Tomic, Slobodan Devic, “Use of a control film piece in radiochromic film dosimetry,” Physica Medica: European Journal of Medical Physics 32(1) 202-7
  5. 2015 S. Asgharizadeh, H. Bekerat, A. Syme, S. Aldelaijan, F. DeBlois, T. Vuong, M. Evans, J.Seuntjens, S. Devic, “Radiochromic film-based quality assurance for CT-based high-dose-rate brachytherapy,” Brachytherapy, 14(4) 578-85
  6. 2014 A. Nobah, S. Aldelaijan, S. Devic, N. Tomic, J. Seuntjens, M. Al-Shabanah, B. Moftah, “Radiochromic film based dosimetry of image-guidance procedures on different radiotherapy modalities,” Journal of Applied Clinical Medical Physics 15(6)
  7. 2014 N. Tomic, C. Quintero, B. R. Whiting, S. Aldelaijan, H. Bekerat, L. Liang, F. DeBlois, J. Seuntjens, and S. Devic. "Characterization of calibration curves and energy dependence GafChromicTM XR-QA2 model based radiochromic film dosimetry system," Med. Phys. 41(6) 062105
  8. 2013 Aldelaijan S, Nobah A, Alsbeih G, Moftah B, Aldahlawi I, Alzahrany A, Tomic N and Devic S “Dosimetry of biological irradiations using radiochromic films Phys. Med. Biol. 58, 3177-89
  9. 2012 S. Devic, N. Tomic, S. Aldelaijan, F. DeBlois, J. Seuntjens, M. Chan, D. Lewis, “Linearization of dose-response curve of the radiochromic film dosimetry system,” Med. Phys. 39 (8), 4850-4857
  10. 2011 S. Aldelaijan, H. Mohammed, N. Tomic, L. Liang, F. DeBlois, A. Sarfehnia, W. Abdel-Rahman, J. Seuntjens, S. Devic, “Radiochromic film dosimetry of HDR 192Ir source radiation fields,” Med. Phys. 38 , 6074-6083
  11. 2010 S. Aldelaijan, S. Devic, H. Mohammed, N. Tomic, L. Liang, F. DeBlois, J. Seuntjens “Evaluation of EBT-2 Model GAFCHROMICTM Film Performance in Water,” Med. Phys. 37, 3687-3693
  12. 2010 S. Devic, S. Aldelaijan, H. Mohammed, N. Tomic, L. Liang, F. DeBlois, J. Seuntjens, “Absorption spectra time evolution of EBT-2 model GAFCHROMICTM film,” Med. Phys. 37, 2207

 

Awards

Higher Education Scholarship (Ph.D.) from KFSH&RC - 2016

CREATE / Medical Physics Research Training Network Program (MPRTN) - 2016

Higher Education Scholarship (M.Sc.) from SFDA - 2008

 

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