Monte Carlo simulation of the Compton camera for nuclear medical imaging
Date
2018-10Citation:
Uche, C. Z. (2018, October). Monte Carlo simulation of the Compton camera for nuclear medical imaging. Paper presented at the Engineering and Physical Sciences in Medicine Conference 2018, Adelaide, Australia.Permanent link to Research Bank record:
https://hdl.handle.net/10652/4503Abstract
Nuclear Medicine Imaging System –Gamma camera
Gamma camera head
Compton camera
Compton scattering (what you were taught)
Compton scattering (what really happens)
Doppler Broadening
How Doppler broadening affects the electron energy spectrum at 𝜽𝜽=90°
Image degradation (FWHM) due to Doppler broadening for the selected materials
Theoretical efficiencies with respect to Compton scattering for selected materials
Efficiency evaluation of the two detectors across experimental thickness at 140.5 keV
Preliminary findings
Pre-clinical evaluations
Diagram illustrating the imaging of two spherical 5mm diameter breast tumours in craniocaudalview with a dual-head Compton camera
Challenging imaging scenarios for breast lesions (5 mm) located close to the chest wall for 18F (511 keV)
Diagram illustrating the imaging of two spherical brain tumours of 5mm diameter filled with 113mIn and 18F radiotracers
The reconstructed images of the brain lesions (5 mm) filled with18F (left) and 113mIn (right) radiotracers
Conclusion