John P. Mullins et al.,“Systematic offset of kV and MV localization systems as a function of
gantry angle,” Journal of Applied Clinical Medical Physics, vol. 12, No. 1, Winter 2011, pp …

Stereotactic radiosurgery requires sub-millimetre accuracy in patient positioning and target
localization. Therefore, verification of the linear accelerator (linac) isocentre and the laser …

Purpose: With usually a millimeter-level PTV margin, stereotactic radiosurgery (SRS) and
stereotactic body radiation therapy (SBRT) pose a stringent requirement on the isocentricity …

The accurate measurement of the linear accelerator (linac) radiation isocenter is critical,
especially for stereotactic treatment. Traditional quality assurance (QA) procedure focuses …

Purpose To perform a three‐dimensional (3D) concurrent isocentricity measurement of a
clinical linear accelerator's (linac) using a single 3D dosimeter, PRESAGE. Methods A 3D …

Purpose To compare x-ray and optical imaging methods for measuring the relative position
of radiation isocenter and couch rotation center. To show the impact of radiation isocenter …

Purpose A two‐layer cylinder (TLC) phantom was developed for simplifying film‐based
isocenter verification of linear accelerators in radiotherapy. Methods and materials The …

Short and semi-automated quality assurance (QA) programs are becoming one of the most
popular and highly demanding tasks in radiotherapy. The current research investigates the …

The aim of this study is to develop a new method to align the patient setup lasers in a
radiation therapy treatment room and examine its validity and efficiency. The new laser …

US10507339B2 - Imaging based calibration systems, devices, and methods - Google
Patents US10507339B2 - Imaging based calibration systems, devices, and methods …