Gries P, Constantinesco A, Brunot B, Facello A
Laboratoire de Biomécanique, CHU Hautepierre, Strasbourg, France.
Magn Reson Imaging. 1991;9(6):949-53. doi: 10.1016/0730-725x(91)90541-s.
We describe the first results of a new magnetic resonance imaging (MRI) system specially developed for hand and wrist imaging. The system uses a small resistive water-cooled magnet with a vertical magnetic field of 0.1 T in an air gap of 15 cm. The console is based on a microcomputer with a vector signal processor and an image-processing board. There is actually no Faraday cage. For the whole hand, the in-plane spatial resolution is less than 1 mm in the 128 x 128-pixels format for typical slice thicknesses of 3 to 5 mm. Solenoidal volume coils for fingers were developed, giving, in the same matrix format, an in-plane high spatial resolution of 0.22 mm for a typical slice thickness of 3 mm.
我们描述了一种专门为手部和腕部成像而开发的新型磁共振成像（MRI）系统的首批结果。该系统采用小型电阻水冷磁体，在15厘米的气隙中产生0.1特斯拉的垂直磁场。控制台基于带有矢量信号处理器和图像处理板的微型计算机。实际上没有法拉第笼。对于整个手部，在128×128像素格式下，对于3至5毫米的典型切片厚度，平面内空间分辨率小于1毫米。已开发出用于手指的螺线管容积线圈，在相同矩阵格式下，对于3毫米的典型切片厚度，平面内高空间分辨率为0.22毫米。
