目的分析听障儿童在人工耳蜗调机前后听觉能力和言语清晰度的变化,强调精准调机的重要性,避免电流刺激量过高。方法患儿人工耳蜗术后开机1年4个月,康复效果欠佳,表现为声音察知好,精准听辨和言语清晰度差,听觉能力评估量表(CAP)为5级,...目的分析听障儿童在人工耳蜗调机前后听觉能力和言语清晰度的变化,强调精准调机的重要性,避免电流刺激量过高。方法患儿人工耳蜗术后开机1年4个月,康复效果欠佳,表现为声音察知好,精准听辨和言语清晰度差,听觉能力评估量表(CAP)为5级,言语可懂度分级量表(SIR)为1级。调机时发现,T值、C值均过高,尤其高频电极,给予精准调机,降低电流刺激量。结果电流刺激量降低后,患儿康复效果进步明显,助听听阈25~30 dB HL,听觉能力评估量表(CAP)达7级,言语可懂度分级量表(SIR)达5级。结论人工耳蜗术后精准及个性化调机至关重要,既要重视刺激量不足,也要避免刺激量过高。展开更多
Background and objective:The size of the cochlea varies a lot among the human population bringing the necessity for electrode arrays to be available in various lengths irrespective of the cochlear implant(CI)brand.Thi...Background and objective:The size of the cochlea varies a lot among the human population bringing the necessity for electrode arrays to be available in various lengths irrespective of the cochlear implant(CI)brand.This research software helps in the estimation of the patient’s cochlear duct length(CDL)which is then used for the simulation of the correct length electrode array matching the patient’s cochlear size and as well in getting the patient specific cochlear frequency map.Methods:Visual Studio Express 2012 for Windows Desktop is used in the architecture of this research software.The basal turn diameter of the cochlea("A"value)needs to be measured from the pre-operative computed tomography(CT)image of the patient’s temporal bone.This"A"will be taken as the input for the CDL equations proposed by Alexiades et al for estimating the CDL along the basilar membrane for various insertion depths.Greenwood’s equation is then used in combination with the CDL for the full length of the cochlea in getting the patient specific frequency map.Results:The research software with the help of the"A"value as input,with few button clicks,gives the patient specific CDL for various insertion depths and the Greenwood’s frequency map.The users have the choice to select any electrode array of their choice and place it under the frequency map to see how good it fits to that particular patient’s cochlea.Also,given the possibility to drag and move the electrode array picture to mimic the post-operative actual electrode insertion depth.Conclusions:This research software simplifies the overall process of CDL estimation and in getting the patient specific cochlear frequency map.The clinicians get the chance to simulate placing the various electrode array lengths in patient cochlea in identifying the best fit electrode.This could help in pushing the CI field into the concept of individualized CI electrode array solution that ultimately benefits the patients.展开更多
文摘目的分析听障儿童在人工耳蜗调机前后听觉能力和言语清晰度的变化,强调精准调机的重要性,避免电流刺激量过高。方法患儿人工耳蜗术后开机1年4个月,康复效果欠佳,表现为声音察知好,精准听辨和言语清晰度差,听觉能力评估量表(CAP)为5级,言语可懂度分级量表(SIR)为1级。调机时发现,T值、C值均过高,尤其高频电极,给予精准调机,降低电流刺激量。结果电流刺激量降低后,患儿康复效果进步明显,助听听阈25~30 dB HL,听觉能力评估量表(CAP)达7级,言语可懂度分级量表(SIR)达5级。结论人工耳蜗术后精准及个性化调机至关重要,既要重视刺激量不足,也要避免刺激量过高。
文摘Background and objective:The size of the cochlea varies a lot among the human population bringing the necessity for electrode arrays to be available in various lengths irrespective of the cochlear implant(CI)brand.This research software helps in the estimation of the patient’s cochlear duct length(CDL)which is then used for the simulation of the correct length electrode array matching the patient’s cochlear size and as well in getting the patient specific cochlear frequency map.Methods:Visual Studio Express 2012 for Windows Desktop is used in the architecture of this research software.The basal turn diameter of the cochlea("A"value)needs to be measured from the pre-operative computed tomography(CT)image of the patient’s temporal bone.This"A"will be taken as the input for the CDL equations proposed by Alexiades et al for estimating the CDL along the basilar membrane for various insertion depths.Greenwood’s equation is then used in combination with the CDL for the full length of the cochlea in getting the patient specific frequency map.Results:The research software with the help of the"A"value as input,with few button clicks,gives the patient specific CDL for various insertion depths and the Greenwood’s frequency map.The users have the choice to select any electrode array of their choice and place it under the frequency map to see how good it fits to that particular patient’s cochlea.Also,given the possibility to drag and move the electrode array picture to mimic the post-operative actual electrode insertion depth.Conclusions:This research software simplifies the overall process of CDL estimation and in getting the patient specific cochlear frequency map.The clinicians get the chance to simulate placing the various electrode array lengths in patient cochlea in identifying the best fit electrode.This could help in pushing the CI field into the concept of individualized CI electrode array solution that ultimately benefits the patients.
