Physics and Astronomy

Physics and Astronomy

Anas Abdulhamid Sedayo

Position

PhD Student - Medical Physics

Qualifications

BSc: Nuclear engineer, College of engineering, King Abdul-Aziz University(KSA)
MSc: Nuclear engineer, College of engineering, King Abdul-Aziz University (KSA)

Contact Details

Room: 807, Physics and Astronomy

Phone: +64 3 364-2987
Internal Phone: 7515

Email: anas.sedayo@pg.canterbury.ac.nz

Research

PhD Thesis

Understanding how to control fluorescence from x-ray scattering in clinical treatment of patients with radiotherapy and evaluating the benefits of spectroscopic imaging in discriminating fat and liver.
In collaboration with MARS project.

Supervision
Prof Phil Butler: phil.butler@canterbury.ac.nz
Assoc.Prof. Lou Reinisch:  lou.reinisch@att.net
Assoc.Prof. Samir Alzaidi: samiraalzaidi@hotmail.com

Fatty liver is one of the most common diseases of the digestive system. The condition is being detected more frequently with the increased use of CT. The condition can be improved with treatment and by diet; otherwise liver cirrhosis may be the final result. It is important to know the extent of fatty liver (the content of fat in liver tissues). Although CT is very useful for diagnosis of focal fatty infiltration of the liver, with diffuse fatty liver showing low attenuation, biopsy of liver tissue is the most effective modality. However, biopsy is invasive.
The aim of this project is to investigate the possibility to distinguish between fat and liver with spectral CT images from the MARS-CT scanner.

Experimental Hounsfield Unit

Theoretical Hounsfield Unit

 

Conclusions:
The results showed the ability of the Medipix2 detector to obtain spectral x-ray images. Hounsfield Units were obtained and compared with the theoretical ones, the comparison is not perfect, but clearly can distinguish fat and liver. The analysis still going onĀ  with expectation of getting better data.