Jolesz F A, Patz S
Department of Radiology, Harvard Medical School, Boston, MA.
Magn Reson Imaging. 1988 Jul-Aug;6(4):397-403. doi: 10.1016/0730-725x(88)90476-6.
A retrospective analysis of clinical imaging using 2DFT SSFP at 0.14 T is presented. The technique's potential for tissue characterization and its utility for clinical diagnosis were tested by both in vitro measurements of various tissues and in vivo clinical images. Different pulse angles not only influenced image contrast, but also helped characterize lesions, particularly those containing fat. In addition, the pulse angle changed the signal from venous flow perpendicular to the imaged slice. The slow flow sensitivity of the 2DFT SSFP technique was demonstrated in the detection of CSF motion. Rapid SSFP offers flow sensitivity and adequate lesion detecting ability, along with high patient throughput.
本文介绍了一项使用0.14 T的二维快速场回波序列（2DFT SSFP）对临床影像进行的回顾性分析。通过对各种组织的体外测量和体内临床影像，测试了该技术在组织特征描述方面的潜力及其对临床诊断的实用性。不同的脉冲角度不仅影响图像对比度，还有助于对病变进行特征描述，尤其是那些含有脂肪的病变。此外，脉冲角度改变了垂直于成像切片的静脉血流信号。二维快速场回波序列（2DFT SSFP）技术在检测脑脊液流动中显示出慢血流敏感性。快速场回波序列提供血流敏感性和足够的病变检测能力，同时具有高患者通量。
