Smith R C
Department of Diagnostic Imaging, Yale University School of Medicine, New Haven, Connecticut 06512.
Top Magn Reson Imaging. 1995 Winter;7(1):3-25.
To perform magnetic resonance imaging of the female pelvis, one must be familiar with the imaging appearance of normal structures as well as the disease entities that may be encountered. However, it is also important to be familiar with and understand the basic physical principles of the available imaging techniques to be able to optimize image quality and the detection of abnormalities. This discussion is intended to describe the available imaging techniques used in evaluation of the female pelvis. Following a discussion of conventional spin echo (CSE) techniques, the fast spin echo (FSE) technique will be described in detail. This will include how the FSE sequence generates images, the choice of imaging parameters, and the unique contrast characteristics and artifacts associated with the FSE technique. Pelvic multicoils will also be described in detail, including the choice of imaging parameters when using these coils and the unique artifacts that can be encountered. Chemical-selective imaging and motion artifact reduction techniques will additionally be described. At the end of the discussion, suggested imaging parameters are given for CSE and FSE sequences and for body coil and multicoil imaging.
要对女性骨盆进行磁共振成像，必须熟悉正常结构的成像表现以及可能遇到的疾病实体。然而，熟悉并理解现有成像技术的基本物理原理，以便优化图像质量和检测异常情况也很重要。本讨论旨在描述用于评估女性骨盆的现有成像技术。在讨论传统自旋回波（CSE）技术之后，将详细描述快速自旋回波（FSE）技术。这将包括FSE序列如何生成图像、成像参数的选择以及与FSE技术相关的独特对比特征和伪影。还将详细描述盆腔多线圈，包括使用这些线圈时成像参数的选择以及可能遇到的独特伪影。此外，还将描述化学选择性成像和运动伪影减少技术。在讨论结束时，给出了CSE和FSE序列以及体线圈和多线圈成像的建议成像参数。
