Related Experiment Video
Updated: Feb 5, 2026

Visualization of Cortical Modules in Flattened Mammalian Cortices
Published on: January 22, 2018
[Dosimetric verification of flattening filter free model based on TrueBeam accelerator using ArcCheck system]
Yuxing Zhu1, Dongyong Shan1, Shizhen Bin1
1Department of Oncology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Objective:
To study the feasibility of ArcCheck verification system in dosimetric verification for stereotactic radiotherapy (SRT) the stereotactic radiotherapy (SRT) with flattening filter free (FFF) model. Methods: A total of 76 cases under SRT treatment plans were introduced into ArcCheck phantom and recalculated. Threshold criteria was set as (3%, 3 mm, 10%) or (2%, 2 mm, 10%). The calculated dose distribution and the measured dose distribution of ArcCheck phantom were compared by means of distance to agree (DTA) and Gamma analysis method respectively. Results: Based on the threshold criteria (3%, 3 mm, 10%), the relative and absolute mean pass rates of SRT treatment plans by DTA and Gamma analysis were greater than 95%. Based on the threshold criteria (2%, 2 mm, 10%), the relative and absolute mean pass rates of SRT treatment plan by DTA and Gamma analysis were about 90%. The dose pass rate of Gamma analysis method was slightly higher than that of DTA analysis method (P<0.001). Conclusion: The ArcCheck verification system is a rapid and accurate method for SRT dose verification, and discrepancies are found in different analysis methods.
Related Concept Videos
Self-Evaluation: Self-Enhancement and Self-Verification
Strategies of Self-Presentation II: Self-Verification
Passive Filters
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Active Filters
Accelerators
The effectiveness of calcium chloride can...
Average Acceleration

