Abstract：Objective To study Blade technology artifacts occurrence, improvement in image quality and orbital partitions artifacts degree on Blade image correction techniques through comparative analysis between conventional technology and Blade technology in image SNR, image improvement and image classification. Methods Patients who conducted MRI scans of eyes in Armed Police General Hospital MRI Department from July 2012 to June 2013 were recruited as objects. Routine orbital Tse T2WI sequence scan exhibited different degree of involuntary motion artifact. There were ultimately 136 patients admitted. Using the German Siemens Trio Tim 3.0T superconductive magnetic resonance imaging system, all patients were scaned by conventional MRI and Blade technology in the location. Based on the artifacts degree of conventional MRI, 136 patients were divided into mild, moderate and severe artifacts groups. Obtaining the signal to noise ratio, the image quality grade and technical-image improving efficiency of two scanning images were compared to evaluate the improvement of image quality. Results Artifacts mild eye area (t=4.159,P＜0.05)and periosteal groups outside the area (t=－4.306,P＜0.05)Blade technology SNR was significantly higher than conventional techniques; severe eye area artifact group(t=－4.917,P＜0.05), nerve sheath region(Z=－4.687,P＜0.05) and the outer region(Z=－3.431,P＜0.05) Blade technology periosteum SNR was significantly higher than that of conventional technology. Conclusions The Blade technology can significantly improve the SNR of the scanning image in eyes, and there are differences among different orbit partitions in the same degree of artifacts.
董玉茹,王宏,钟心,穆学涛,马毅,刘腾,刘勉. 眼眶磁共振扫描blade技术和常规技术对信噪比的影响[J]. , 2014, 25(6): 550-553.
DONG Yuru,WANG Hong,ZHONG Xin,MU Xuetao,MA Yi,LIU Teng,and LIU Mian. Blade and conventional technology of signal-to-noise ratio in orbital MRI scans of impact analysis. , 2014, 25(6): 550-553.
2014, Vol. 25 
