Abstract: A method for processing data relating to a radiological examination of a patient by way of a determining device, comprises the steps of acquiring doses (Ci, ti) measured at a plurality of times ti, storing these time-stamped measurements of radiation doses, and acquiring at least one DICOM digital file containing information on the examination, wherein the method comprises the following steps: acquiring and storing at least one DICOM digital file delivered by the tomograph during or after a tomography; acquiring and storing time-stamped measurements of the doses detected via a scintillating fiber placed on the table, and time-stamped movements of the table; interpolating the measurements (Ci, ti) with data of the image (DICOM) in a common interpolated space and constructing a table (Ck, DICOMk) in the interpolated space; and determining a table of the average dose levels Tz in each slice T depending on the data (DICOMk, Ck).
Type:
Grant
Filed:
March 31, 2021
Date of Patent:
April 15, 2025
Assignees:
Fibermetrix, Alara Expertise
Inventors:
Mélodie Munier, Fanny Carbillet, Pierre-Benoît Prudhomme, Nicolas Guillochon
Abstract: A method for measuring and representing the level of local irradiation doses, in at least two dimensions, comprises: a step of positioning N probes Si sensitive to irradiating radiation, each corresponding to a local zone Zi according to a known topology; a step of acquiring, by each of the probes, the level of radiation ISi detected and periodically recording numerical values ISi(t); and a step of converting the numerical values ISi(t) into values DSi(t) corresponding to the radiation dose applied to each of the Z zones associated with a probe Si, according to a calibration table. The method further comprises, during the measurement sequence, steps of spatial interpolation calculation of at least one estimated irradiation level value ISiv(t) of at least one virtual zone Ziv that is not associated with a probe. A measurement device for implementing this method is also described.
Abstract: A device for determining an ionizing radiation dose deposited by a medical imaging apparatus during a radiological examination of a patient includes at least one measurement probe comprising at least one optical probe defining two exit ends, the optical probe comprising at least one active section made from a scintillator and intended to emit photons under the effect of incident ionizing radiation and at least two transport sections that are placed on either side of the active section and configured to transport the photons emitted by the active section to the exit ends; at least one detection system comprising at least two photodetectors, each photodetector being connected to one respective exit end of the optical probe to receive and count the photons received from the exit end; and at least one processing module configured to determine the deposited dose on the basis of the measurements carried out by the photodetectors.
Type:
Grant
Filed:
July 6, 2017
Date of Patent:
November 17, 2020
Assignee:
Fibermetrix
Inventors:
Mèlodie Munier, Till Sohier, Fayçal Torche, Fanny Carbillet