A Monte Carlo study on the performance evaluation of a parallel hole collimator for a HiReSPECT: A dedicated small-animal SPECT

Abbaspour, Samira; Tanha, Kaveh; Moeini, Babak; Assadi, Majid; Islamian, Jalil Pirayesh

doi:10.1016/j.apradiso.2018.04.021

Cited by 3 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They used a 99m Tc with 1 mCi (37 MBq) activity located at 5 cm from the collimator surface. We compared our GATE simulation results with SIMIND results reported by Abbaspour et al [18].…”

Section: Collimator Optimizationmentioning

confidence: 99%

A Monte Carlo Simulation Study of Optimization for Collimator in a Pixelated SPECT Camera

Telikani

Sadremomtaz

2019

Journal of Medical Imaging and Radiation Sciences

View full text Add to dashboard Cite

“…They used a 99m Tc with 1 mCi (37 MBq) activity located at 5 cm from the collimator surface. We compared our GATE simulation results with SIMIND results reported by Abbaspour et al [18].…”

Section: Collimator Optimizationmentioning

confidence: 99%

A Monte Carlo Simulation Study of Optimization for Collimator in a Pixelated SPECT Camera

Telikani

Sadremomtaz

2019

Journal of Medical Imaging and Radiation Sciences

View full text Add to dashboard Cite

“…At the end of their study, efficient and accurate multi-leaf collimator design in terms of rapid motion management was introduced. Abbaspour et al [7] carried out performance evaluation of a parallel hole collimator of the HiReSPECT imaging system in terms of image quality, resolution and sensitivity by utilizing Monte Carlo simulations. Weidlich et al [8] characterized a novel collimator design in terms of its radiation leakage.…”

Section: Introductionmentioning

confidence: 99%

Integration of the function generation synthesis into the design of a multi-leaf collimator

Gezgin

Yazici

2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

Throughout recent history, medical robots have gained a lot of popularity in robotic assisted radiotherapy. Integration of robot manipulators into the field of radiotherapy has improved the chances of patient recovery by increasing system precision, operation reliability and treatment efficiency. In order to prevent healthy tissues from radiation exposures during treatments, linear accelerators of radiotherapy robots have been enhanced by the implementation of active collimator designs. Addition of collimator mechanisms to these systems has also increased possibilities of treatments by allowing adjustable beam geometries on the targets. However, as the collimator leaves are additional obstacles on the path of the beam, beam scattering has become one of the most crucial issues waiting to be improved for these systems. In order to propose a solution for this problem, current paper tries to implement function generation synthesis into a multi-leaf active collimator design, where the individual collimator blocks are stacked vertically. This study demonstrates the proposed approach by utilizing two single degree of freedom planar systems positioned side by side for a point beam source. Throughout the study, kinematic synthesis approach was introduced to design these planar systems to adjust beam contour geometries on a single axis. At the end of the study, proposed procedure was verified by a numerical example and the results were used to design four degrees of freedom collimator that is able to adjust beam contour geometries on the plane. The prototype of the system was also modelled in order to ensure the realization of the collimator design for contour adjustments.

show abstract

Validation and optimization studies of small animal SPECT using GATE Monte Carlo simulation

Sadremomtaz

Telikani

2019

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

A Monte Carlo study on the performance evaluation of a parallel hole collimator for a HiReSPECT: A dedicated small-animal SPECT

Cited by 3 publications

References 25 publications

A Monte Carlo Simulation Study of Optimization for Collimator in a Pixelated SPECT Camera

A Monte Carlo Simulation Study of Optimization for Collimator in a Pixelated SPECT Camera

Integration of the function generation synthesis into the design of a multi-leaf collimator

Validation and optimization studies of small animal SPECT using GATE Monte Carlo simulation

Contact Info

Product

Resources

About