Independent verification of the dose per monitor unit (MU) to deliver the prescribed dose to a
patient has been a mainstay of radiation oncology quality assurance (QA). We discuss the …

Accurate multileaf collimator (MLC) leaf positioning plays an essential role in the effective
implementation of intensity modulated radiation therapy (IMRT). This work evaluates the …

Discrepancies between planned and delivered movements of multi-leaf collimators (MLCs)
are an important source of errors in dose distributions during radiotherapy. In this work we …

We present a study to evaluate the monitor unit (MU), dosimetric, and leaf‐motion errors
found in the delivery of 91 step‐and‐shoot IMRT treatment plans performed at three nominal …

The use of a multileaf collimator (MLC) for intensity-modulated radiotherapy poses unique
dosimetric issues. The nature of intensity-modulated radiotherapy dosimetry, centered on …

Purposes Multileaf collimator (MLC) positional accuracy during dynamic intensity
modulation radiotherapy (IMRT) delivery is crucial for safe and accurate patient treatment …

Conventional IMRT dose verification using film and ion chamber measurements is useful but
limited with respect to the actual dose distribution received by the patient. The Monte Carlo …

Purpose: In advanced radiotherapy treatments such as intensity modulated radiation therapy
(IMRT) and volumetric modulated arc therapy (VMAT), verification of the performance of the …

Purpose: Previous measurements of the accuracy of image‐based real‐time dynamic
multileaf collimator (DMLC) tracking show that the major contributor to errors is latency, ie …

The most important radiotherapy modality used today, intensity modulated radiation therapy
(IMRT), is the most technologically advanced radiotherapy cancer treatment available …