US 2026/0199706 A1 · RADIATION DOSIMETRY APPARATUS AND RELATED METHODS

Abstract

A radiation dosimetry apparatus comprises a body that supports scintillator elements that emit light when exposed to radiation. The body may be shaped to conform to contours of a portion of a patient's anatomy. Radiation intensity and dose may be determined by processing images obtained by one or more cameras to measure intensity of light emitted by different ones of the scintillator elements. The scintillator elements may be distributed non-uniformly based on a patient-specific radiation treatment plan. Scintillator elements may be arranged to provide increased spatial resolution and/or dose resolution in higher dose regions and/or regions corresponding to organs at risk. Radiation dosimeter apparatuses may be fabricated by additive manufacturing. Design and fabrication of the radiation dosimetry apparatuses may be integrated into workflows in clinical radiation treatment settings. Methods and systems for fabricating, calibrating, and using the radiation dosimetry apparatuses are described.

Claims33

Dependent claims

Radiation dosimetry apparatus comprising:

a body having a first surface formed to conform with contours of a portion of a patient's anatomy to which radiation is to be delivered according to a patient-specific radiation treatment plan, the radiation treatment plan specifying radiation dose as a function of location on the portion of the patient's anatomy;
a plurality of scintillator elements in the body and visible on a second surface of the body opposed to the first surface, the scintillator elements comprising a material that emits scintillation light in response to the radiation specified by the radiation treatment plan.

A system for radiation treatment, the system comprising the radiation dosimetry apparatus according to any of the preceding claims combined with a radiation delivery system, at least one camera arranged to image the radiation dosimetry apparatus and a control apparatus connected to receive images from the at least one camera;

wherein the control apparatus is configured to:
process the images to obtain measures of the scintillation light emitted by the scintillator elements of the radiation dosimetry apparatus;
determine corresponding measured radiation intensities of radiation from the radiation delivery system at the scintillation elements;
compare the measured radiation intensities to planned radiation intensities provided by the radiation treatment plan;
and
take an action if the measured radiation intensities deviate significantly from the planned radiation intensities.

3 more elements

Dependencies are inferred from the claim text.

Radiation dosimetry apparatus and related methods

Life of this patent

Radiation dosimetry apparatus and related methods

Life of this patent

Abstract

Claims33