PT - JOURNAL ARTICLE AU - K.M. Schwartz AU - J.I. Lane AU - B.D. Bolster, Jr AU - B.A. Neff TI - The Utility of Diffusion-Weighted Imaging for Cholesteatoma Evaluation AID - 10.3174/ajnr.A2129 DP - 2011 Mar 01 TA - American Journal of Neuroradiology PG - 430--436 VI - 32 IP - 3 4099 - http://www.ajnr.org/content/32/3/430.short 4100 - http://www.ajnr.org/content/32/3/430.full SO - Am. J. Neuroradiol.2011 Mar 01; 32 AB - SUMMARY: DWI is a useful technique for the evaluation of cholesteatomas. It can be used to detect them when the physical examination is difficult and CT findings are equivocal, and it is especially useful in the evaluation of recurrent cholesteatoma. Initial DWI techniques only detected larger cholesteatomas, >5 mm, due to limitations of section thickness and prominent skull base artifacts. Newer techniques allow detection of smaller lesions and may be sufficient to replace second-look surgery in patients with prior cholesteatoma resection. ASSETarray spatial sensitivity encoding techniqueDWIdiffusion-weighted imagingEPIecho-planar imagingHASTEhalf-Fourier acquired single-shot turbo spin-echoPROPELLERperiodically rotated overlapping parallel lines with enhanced reconstructionSNRsignal intensity–to-noise ratioSS TSEsingle-shot TSETSEturbo spin-echo