| 摘要 |
For repeat localization and immobilization of the head, neck and/or torso of a patient's body, immobilizing structures are used to secure the head and the neck and torso in a relative orientation in the position and relative orientation. A reference structure determines the relative position of the head and neck or torso so that the same configuration of these portions of the body can be achieved on a scanner couch or treatment machine couch repeatedly. Several forms of head and neck or torso immobilizers accommodate specific objectives and several forms of reference structures accomplish repositioning and patient position orientation.
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