Bruhn H, Gyngell M L, Hänicke W, Merboldt K D, Frahm J
Max-Planck Institute for Biophysical Chemistry, Göttingen, FRG.
Skeletal Radiol. 1991;20(4):259-65. doi: 10.1007/BF02341660.
Cross-sectional magnetic resonance (MR) images of the normal hand, wrist, and fingers with an inplane resolution of 0.2-0.4 mm and a slice thickness of 1-2 mm were obtained using a 40-cm bore, 2.35-T MRI system equipped with actively shielded 50 mT m-1 gradient coils. A detailed description of the normal anatomy is given. The T1-weighted, multi-slice, fast low-angle shot (FLASH) MR images presented show a substantial improvement in resolution as compared with earlier reports. Typical investigational times of about 15 min offer a fast scan protocol that is suitable for routine clinical applications. The study further demonstrates the potential of dedicated magnets to facilitate and refine diagnostic MR imaging of hand injuries and hand-related diseases.
使用配备有源屏蔽50 mT m⁻¹梯度线圈的40 cm孔径、2.35 T MRI系统，获得了正常手部、腕部和手指的横断面磁共振（MR）图像，其平面分辨率为0.2 - 0.4 mm，层厚为1 - 2 mm。文中给出了正常解剖结构的详细描述。所呈现的T1加权、多层、快速低角度激发（FLASH）MR图像显示，与早期报告相比，分辨率有了显著提高。约15分钟的典型检查时间提供了一种适用于常规临床应用的快速扫描方案。该研究进一步证明了专用磁体在促进和完善手部损伤及手部相关疾病的诊断性MR成像方面的潜力。
