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The Imaging Method and Application of MR Proset<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
宦怡 李春梅 赵海涛
第四军医大学西京医院放射科，陕西西安 710032
Yi Huan，Chun-mei LI，Hai-tao ZHAO
Department of Radiology，XiJing Hospital，Fourth Military Medical University，Xi’an，710032，China
Abstract
Objective：To investigate the application value and the principle of PROSET.
Materials and Methods：PROSET images were acquired with 3D FFE in 45 healthy volunteers，including 15 lumbosacral nerve roots，5 carotid arteries，15 knees and 10 temporomandibular joints.
Results：Nerve roots and ganglions, carotid arteries articular cartilages, ligaments and articular plates were visible clearly.
Conclusion：MR PROSET is useful in the visualization of nerve roots,and have the advantage of 3D fast imaging in joints and blood vessels.
随着磁共振成像软、硬件的快速发展，各种成像技术被不断开发出，PROSET序列(PRinciple Of Selective Excitation Technique)的出现为磁共振三维快速成像注入了新的活力。PROSET是一种选择性激励技术，将频率及空间选择性(spatial-spectral selective)激励脉冲应用于三维快速梯度回波(3D FFE)序列，选择性地激励水或脂肪，得到水或脂肪激励成像，主要应用于神经根、关节、血管成像中[1-5]。本文旨在正常腰骶部脊神经根、膝关节、颞颌关节及颈动脉血管PROSET成像研究的基础上，加深对此序列原理的理解，探讨PROSET序列的应用价值。 | 
