A novel endorectal RF coil for high resolution MRI and spectroscopy of the prostate

作     者：ZHANG Hongjie 1,2, SONG Xiaoyu1, WANG Xiaoying3, XU Pingfang1 and BAO Shanglian1*(1. Beijing Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China 2. Navy General Hospital, Beijing 100037, China 3. Peking University First Hospital, Beijing 100034, China) 

作者机构：Beijing Key Lab. of Med. Phys. and Eng. Peking Univ. Beijing 100871 China Navy General Hospital Beijing 100037 China Peking Univ. First Hospital Beijing 100034 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2005年第15卷第5期

页      面：472-476页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1002[医学-临床医学] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 10[医学] 

基　　金：Supported by National Natural Science Foundation of China (Grant No. 10175004) 

主　　题：MRI RF coil endorectal coil. 

摘      要：The diagnosis of prostate diseases by magnetic resonance imaging (MRI) in vivo is sometimes difficult for the lower signal to noise ratio (SNR). To increase the SNR of the prostate image, we designed a RF coil that can be inserted into rectum and was named endorectal coil. The properties of RF coil were evaluated using a network analyzer. Moreover the images and spectroscopy of a special phantom were acquired and the results were compared to those of the commercial TORSO coil (G.E. Medical Systems, USA). Our coil gave a significantly higher SNR at the region of interest (ROI). The achieved high local SNR and resulting high spatial resolution would add more anatomic and biochemical information to the diagnosis of prostate diseases.