Multi-modality dosimeter for use with arc-based radiotherapy quality assurance phantom
OwnerMark Ruschin, Alexander Lightstone +4inventors
InventorsMark Ruschin, Alexander Lightstone, Ian Parkinson, Harry Easton, David Beachey, Anthony Kim
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Abstract
A dosimeter that is configured to assist with patient-specific quality assurance (“QA”) in arc-based radiotherapy, such as stereotactic radiotherapy, is provided. The dosimeter facilitates acquiring multiple different dosimetric measurements simultaneously. For instance, the dosimeter can be configured to acquire dosimetric measurements from multiple different modalities, including gel dosimetry and film dosimetry, and is configured for simultaneous use with a diode-array QA phantom.
Claims17
A dosimeter, comprising:
- a film assembly comprising a plurality of film inserts arranged in a parallel stacked arrangement, each film insert being configured to receive a film;
- a film holder configured to receive the film assembly and having a cylindrical outer surface that is sized to be received by a bore of a cylindrical QA phantom.
A computer-implemented method for comparing dose measurements obtained with a multimodality dosimeter with a clinical treatment plan, the steps of the method comprising:
- (a) receiving dose measurement data in a computer system, the dose measurement data being obtained with a multimodality dosimeter;
- (b) generating a scaled calibration curve based on calibration data using the computer system;
- (c) generating scaled dose measurement data by scaling the received dose measurement data using the scaled calibration curve using the computer system;
- (d) co-registering the scaled dose measurement data, using the computer system, with a clinical treatment plan stored in a memory;
- (e) comparing the scaled dose measurement data with the clinical treatment plan using the computer system;
- and
- (f) generating a report based on comparing the scaled dose measurement data with the clinical treatment plan.
Dependencies are inferred from the claim text.