Before Children Cochlear Implantation Related Imaging Measurement And Evaluation

Objective To analyze CT and MRI findings of temporal bone an to evaluatepreoperative diagnostic value for cochlear implantation.Methods Methods: to collect our hospital from January2013to December2013, heavy feeling tone deaf children (0-5)112CT and MRI examination at thesame time.Preoperative clinical diagnosis of112(224ears) were extremelysevere tone deaf.Respectively using computed tomography (CT), magneticresonance imaging (MRI) post-processing technology to the appropriate sectionof the facial nerve canal, facial nerve, surface fossae, taper uplift, the inner earanatomical numerical measurement of all statistics are measured three times,with the mean standard deviation (x±s) said.Results112cases of the children are able to to be examined from the inner earhigh resolution CT scan and MRI imaging of the inner ear water to obtain clearanatomical images in the inner ear.In112cases, the inner ear of high resolutionCT and MRI imaging respectively to observe water can be found all can welldisplay shape and structure of the inner ear, the cochlea, facial nerve,semicircular canal, facial canal the results of the measurement data of variabilityis small.All cases of measurement data can be absolute or relativecontraindications to surgery.Conclusion1, CI preoperative HRCT, clear surface fossae, tympanic cavity, after the fine anatomical locations of the scala tympani and measure of the warpbetween important anatomical structures, and help guide the surgeon to avoidinjury of facial nerve, conducive to the smooth implementation procedure.Toprovide the reference for surgery.2,CI preoperative MRI-the inner ear water imaging, can observe the inner eardevelopment situation, clear the cochlea bottom diameter and cochlear bottomweeks the width of the pipe diameter.For clinical on the choice of cochlearmodel, electrode quantity provide a reference basis.3, Facial nerve vertical section to the outer wall, mastoid lateral margin of thedistance between the men and women compared with statistical significance forclinical line to provide reference for cochlear implantation to avoid facial nerveinjury.