Hanvey S, Glegg M, Foster J
Department of Clinical Physics and Bioengineering, Beatson West of Scotland Cancer Centre, 1053 Great Western Road, Glasgow G12 0YN, UK.
Phys Med Biol. 2009 Sep 21;54(18):5381-94. doi: 10.1088/0031-9155/54/18/002. Epub 2009 Aug 18.
This study investigated the compatibility of a head and neck immobilization device with magnetic resonance imaging (MRI). The immobilization device is used to position a patient in the same way as when receiving a computed tomography (CT) scan for radiotherapy planning and radiation treatment. The advantage of using immobilization in MR is improved accuracy in CT/MR image registration enabling greater confidence in the delineation of structures. The main practical difficulty in using an immobilization device in MRI is that physical constraints make their use incompatible with head imaging coils. Within this paper we describe a method for MR imaging of the brain which allows the use of head and neck immobilization devices. By a series of image quality tests we obtained the same or better image quality as a multi-channel head coil.
本研究调查了一种头颈固定装置与磁共振成像（MRI）的兼容性。该固定装置用于将患者定位，方式与接受用于放射治疗计划和放射治疗的计算机断层扫描（CT）时相同。在磁共振成像中使用固定装置的优势在于CT/MR图像配准的准确性提高，从而在结构勾画方面更具信心。在MRI中使用固定装置的主要实际困难在于物理限制使其与头部成像线圈不兼容。在本文中，我们描述了一种用于脑部磁共振成像的方法，该方法允许使用头颈固定装置。通过一系列图像质量测试，我们获得了与多通道头部线圈相同或更好的图像质量。
