An apparatus and method for determining position and orientation (PnO) of an object within an environment and for automatically determining a hemisphere of the object relative to a source location using an electromagnetic tracking system and a non-magnetic tracking device. The method involves seeding two candidate PnO solutions, one in each hemisphere, based on initial data from the magnetic tracker. Then, as the sensor moves within the tracking volume, both the magnetic tracker and the non-magnetic tracking device are used to track changes in each of the candidate PnO solutions and to determine a correct one of the candidate PnO solutions.

An apparatus and method for determining position and orientation (PnO) of an object within an environment and for automatically determining a hemisphere of the object relative to a source location using an electromagnetic tracking system and a non-magnetic tracking device. The method involves seeding two candidate PnO solutions, one in each hemisphere, based on initial data from the magnetic tracker. Then, as the sensor moves within the tracking volume, both the magnetic tracker and the non-magnetic tracking device are used to track changes in each of the candidate PnO solutions and to determine a correct one of the candidate PnO solutions.

Aspects and embodiments provide an MRI scanner-compatible virtual reality system comprising: user equipment locatable within an MRI scanner bore, the user equipment being configured to provide a subject with an immersive virtual environment; the system further comprising: at least one sensor configured to track eye movement of the subject; wherein interaction of the subject with the immersive virtual environment is controlled by the tracked eye movement. Aspects and embodiments may be implemented in a manner which recognises that VR techniques, which typically rely upon dynamic movement of a VR subject, can be used to aid with maintenance of minimal motion of a subject to be placed within an MRI scanner bore. Implementations may be such that calmness of a subject can be increased and awareness of their physical surroundings diminished, thus allowing for successful MRI image acquisition whilst seeking to minimise distress, boredom and/or frustration experienced by the subject under study.

A monitoring system for use in combination with, in particular a ferromagnetic, detection system of the kind that generates a warning signal to indicate a detection event when the detection system detects movement of a door protecting an entrance to a protected area. The monitoring system may include a processor configured to present information to a user to alert the user when the warning signal indicates a detection event; and a user interface configured to accept a user input in response to the presentation of the detection event that generates a user generated signal indicative of whether the detection event was the result of an unintentional action or an intentional action. The processor may be configured to automatically store data relating to the detection event in a memory unit when the user generated signals indicates that the detection event was the result of an unintentional action.

Interventional localization guides and methods for MRI guided pelvic interventions are disclosed. The interventional localization guides can include a stereotactic perineum positioning device having integrated MR receive coil array and fiducial receive array. The interventional localization guide can also include a physical template for guiding a surgical device, such as a biopsy needle. In various instances, the MRI guided pelvic interventions including co-registering biopsy locations on third party MRI scans.

A device for NMR spectroscopy includes a magnet arrangement, configured to produce a magnetic probe field within a magnet field of view external to the magnet arrangement. In a embodiment, the device includes a coil arrangement, configured to generate an electromagnetic excitation field within a coil field of view and a controller, configured to control the coil arrangement. The device includes a magnet adjustment arrangement, configured and arranged to modify at least one parameter of the magnet arrangement to change a spatial position of the magnet field of view.

MRI system cabinet having a cabinet body with electronics and a water cooler with a water cooling loop. The water cooling loop divides the cabinet body into first and second cabinet spaces, and the electronics are along the first and second cabinet spaces. An air cooler is along the central axis of the water cooler and has a fan. A cooling cycle is formed where, on a first side, the fan generates a first air flow, which is sent to the first cabinet space through a first air path, and a second air flow, which is sent to the second cabinet space through a second air path. After flowing through the first and second cabinet spaces, the first and second air flows are guided into the water cooling loop for heat exchange under the suction action of the fan on a second side, and then directed into the air cooler.

A magnetic resonance apparatus with a safety structure for monitoring a safety-related function is provided. The safety structure includes a control path that is configured to control the safety-related function, and a first protect path and a second protect path. The first protect path and the second protect path are configured to acquire a safety-related parameter of the safety-related function. The first protect path is configured to identify a hazardous situation, independently of the control path and the second protect path, based on the safety-related parameter that the first protect path acquires. The second protect path is configured to identify a hazardous situation, independently of the control path and the first protect path, based on the safety-related parameter that the second protect path acquires. The first protect path and the second protect path are each configured to transfer the magnetic resonance apparatus into a safe state in a hazardous situation.

An implantable medical device (IMD) includes electronic circuitry, and one or more processors configured to switch operation of a first coil of the electronic circuitry between the first and second modes. When in the first mode, the one or more processors are configured to manage operation of the electronic circuitry and the first coil to at least one of sense biological signals, deliver treatment for a non-physiologic condition, or wirelessly communicate with at least one of an external device or second implanted device. When in the second mode, the one or more processors are configured to manage operation of the electronic circuitry and the first coil to detect the time varying MR generated gradient field along the first axis.

A power supply facility for supplying a magnetic resonance facility with electrical power includes a control facility, a network connection to a power network, and an electrical energy store, such as a battery. The network connection is configured for an installed power level that is lower than a maximum power level that may be demanded by the magnetic resonance facility. The control facility is configured, in the event that a power demand of the magnetic resonance facility exceeds the installed power, to provide the power from the network connection and the energy store.