Method for determining a configuration setting of a source of ionizing radiation for which a radiation dose absorbed by a patient and at least one practitioner in a medical operating room is reduced during a procedure involving the use of the source, the configuration setting of the source enabling the production of an image of a target anatomical structure of the patient, the method comprising: prior to the procedure the steps of: /a/ obtaining a model of at least a portion of the medical operating room, wherein the model does not include the at least one practitioner; /b/ obtaining a database of maps of simulated propagation and scattering of ionizing radiation in the model of the at least one portion of the medical operating room for different configuration settings of the source; and during the procedure the steps of: /c/ identifying a current position of the at least one practitioner in the medical operating room; /d/ determining a set of configuration settings of the source enabling the production of the image of the target anatomical structure; for a configuration setting of the source among the set of determined configuration settings of the source the steps of: /e/ estimating a radiation dose absorbed by a model of at least one body part of the patient and a radiation dose absorbed by a model of at least one body part of the at least one practitioner using the maps from the database; /f/ determining a combined radiation dose absorbed by the model of the at least one body part of the patient and the model of the at least one body part of the at least one practitioner; and /g/ outputting a recommended configuration setting of the source among the set of configuration settings of the source, the recommended configuration setting being a configuration setting for which the determined combined radiation dose is reduced. prior to the procedure the steps of: /a/ obtaining a model of at least a portion of the medical operating room, wherein the model does not include the at least one practitioner; /b/ obtaining a database of maps of simulated propagation and scattering of ionizing radiation in the model of the at least one portion of the medical operating room for different configuration settings of the source; and /a/ obtaining a model of at least a portion of the medical operating room, wherein the model does not include the at least one practitioner; /b/ obtaining a database of maps of simulated propagation and scattering of ionizing radiation in the model of the at least one portion of the medical operating room for different configuration settings of the source; and during the procedure the steps of: /c/ identifying a current position of the at least one practitioner in the medical operating room; /d/ determining a set of configuration settings of the source enabling the production of the image of the target anatomical structure; /c/ identifying a current position of the at least one practitioner in the medical operating room; /d/ determining a set of configuration settings of the source enabling the production of the image of the target anatomical structure; for a configuration setting of the source among the set of determined configuration settings of the source the steps of: /e/ estimating a radiation dose absorbed by a model of at least one body part of the patient and a radiation dose absorbed by a model of at least one body part of the at least one practitioner using the maps from the database; /f/ determining a combined radiation dose absorbed by the model of the at least one body part of the patient and the model of the at least one body part of the at least one practitioner; and /g/ outputting a recommended configuration setting of the source among the set of configuration settings of the source, the recommended configuration setting being a configuration setting for which the determined combined radiation dose is reduced. /e/ estimating a radiation dose absorbed by a model of at least one body part of the patient and a radiation dose absorbed by a model of at least one body part of the at least one practitioner using the maps from the database; /f/ determining a combined radiation dose absorbed by the model of the at least one body part of the patient and the model of the at least one body part of the at least one practitioner; and /g/ outputting a recommended configuration setting of the source among the set of configuration settings of the source, the recommended configuration setting being a configuration setting for which the determined combined radiation dose is reduced.