Positioning device for MRI system and this comprehensive MRI system

The invention relates to a positioning device (1) for an MRI system for generating magnetresonanztomographischer shots in the area of ​​a head and this comprehensive MRI system (17), wherein the positioning device is at least partially positionable in or on an ear canal and at least one orientation or comprises measuring aids, wherein at least one of orientation and / or measurement tool is an active, semi-active or passive markers (14) and / or a RF transmitter and / or receiver coil arrangement (2).