Abstract: A method for calibrating a piece of MRI tomography equipment involves constructing a pair of phantoms comprising a physical phantom and a digital twin phantom, determining the virtual image of the digital phantom on the basis of the characteristics of the piece of MRI equipment to be tested, carrying out an MRI sequence with the physical phantom, and verifying the virtual and real image, wherein the digital phantom is produced by solving Bloch equations applied to the characteristics of the physical phantom as a function of the characteristics of the reference sequence.

Abstract: A method for calibrating a piece of MRI tomography equipment involves constructing a pair of phantoms comprising a physical phantom and a digital twin phantom, determining the virtual image of the digital phantom on the basis of the characteristics of the piece of MRI equipment to be tested, carrying out an MRI sequence with the physical phantom, and verifying the virtual and real image, wherein the digital phantom is produced by solving Bloch equations applied to the characteristics of the physical phantom as a function of the characteristics of the reference sequence.

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 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 Z 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.