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

作　　者：ZHANGHongjie SONGXiaoyu WANGXiaoying XUPingfang BAOShanglian 

机构地区：[1]BeijingKeyLaboratoryofMedicalPhysics＆Engineering,PekingUniversity,Beijing100871,China／／NavyGeneralHospital,Beijing100037,China [2]BeijingKeyLaboratoryofMedicalPhysics＆Engineering,PekingUniversity,Beijing100871,China [3]PekingUniversityFirstHospital,Beijing100034,China

出　　处：《Progress in Natural Science:Materials International》2005年第5期472-476,共5页自然科学进展·国际材料（英文版）

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

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.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.

关 键 词：MRI RF coil endorectal coil 

分 类 号：R697.3[医药卫生—泌尿科学] R81[医药卫生—外科学]