Distance-to-agreement (DTA) tests measure the distance between a point on the measured dose distribution and the nearest point on the calculated distribution with equal dose. Unlike dose …

2018年2月14日 · The performance of the dose difference/distance-to-agreement (DTA) and γ dose distribution comparison metrics are investigated. Measurement methods are reviewed …

2019年10月15日 · Gamma evaluation is the most commonly used technique for comparison of dose distributions for patient-specific pretreatment quality assurance in radiation therapy. …

The commissioning of a three-dimensional treatment planning system requires comparisons of measured and calculated dose distributions. Techniques have been developed to facilitate …

DTA tool is computed for each reference dose point and examines the evaluated dose distribution for the nearest lo-cation that has the same dose as the reference point. The DTA tool tends to …

2012年5月6日 · One of the most common techniques to compare dose distributions is the combined use of distance-to-agreement (DTA) and dose difference. In this post I will give an …

Gamma index analysis with global dose error normalization, such as distance to agreement (DTA), dose deviation (DD), and gamma passing rate, was carried out to compare the …

DTA即distance-to-agreement，这个方法是比较两个点的距离一致性，是比较在剂量相同的情况下两个点的距离。 在以上两个算法中，比较的方法各有特点，也各有其缺点，Gamma算法是将 …

2021年11月1日 · Profeel aims to support quality assurance, dosimetry and research in the field of radiotherapy by providing an environment to visualize, process and analyse measured and …

Techniques have been developed to facilitate quantita-tive comparisons, including superimposed isodoses, dose-difference, and distance-to-agreement ~DTA ! distributions. The criterion for …