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1st Commandment

Explained

Metric for γ-analysis

o

“Overreliance on the insensitive metric is

counterproductive to quality improvement and

can lead to the sense of complacency among the clinical physicists.”

o

“IMRT and VMAT commissioning, along with product validation, would

benefit from the retirement of the 3%/3 mm passing rates as a primary

metric of performance, and

the adoption instead of tighter tolerances, more diligent

diagnostics, and more thorough analysis.”

Med Phys 2013 – Nelms et al

Warsaw 2017

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