Abstract: A medical imaging apparatus and a device to detect the position of a moving part of the body of a patient. The detection device includes a management module including electronic and electric components including a differential pressure sensor linked to a measuring device that generates a differential pressure representative of the respiration flow rate of the patient, the management module being organized so as to perform at least: one acquisition and processing of the data produced by the differential pressure sensor for the generation of data representative of the respiratory volume and for the generation of an outgoing digital synchronization signal; the reception of an incoming digital synchronization signal; the generation of an outgoing digital signal of data representative of the respiratory volume in line with one of the two synchronization signals.

Abstract: The invention relates to a measuring device to generate a differential pressure representative of the flow rate of gaseous flow for medical imaging, including: a central body provided with longitudinal channels communicating with an inlet and outlet for the gaseous flow, a casing surrounding the central body, and seals delimiting a first space for measuring an upstream pressure and a second space for measuring a downstream pressure, each of which communicates with at least one of the longitudinal channels, and a third space for warming the central body. The invention also relates to a device to detect the position of a moving area, analysed by medical imaging, of the body of a patient, as well as medical imaging apparatus incorporating such a detection device.