PT - JOURNAL ARTICLE AU - S Naganawa AU - T Itoh AU - H Fukatsu AU - T Ishigaki AU - T Nakashima AU - Y Kassai AU - M Miyazaki AU - H Takai TI - Three-dimensional fast spin-echo MR of the inner ear: ultra-long echo train length and half-Fourier technique. DP - 1998 Apr 01 TA - American Journal of Neuroradiology PG - 739--741 VI - 19 IP - 4 4099 - http://www.ajnr.org/content/19/4/739.short 4100 - http://www.ajnr.org/content/19/4/739.full SO - Am. J. Neuroradiol.1998 Apr 01; 19 AB - We compared the image quality of the newly developed ultra-long echo train length (ETL) 3-D fast spin-echo (FSE) and half-Fourier technique, which is performed in less than 3 minutes, with the conventional 3D-FSE imaging technique, which takes 15 minutes, in assessing MR examinations of the inner ear. The new method's images were almost comparable to the conventional 3D-FSE images in depicting anatomic details and pathologic findings. Implementation of the ultra-long ETL and half-Fourier 3D-FSE imaging technique enables acquisition of inner ear MR studies in a vastly reduced time and with high spatial resolution without significant penalty, opening the possibility for low-cost screening of acoustic tumors without contrast enhancement in less than 3 minutes.