Abstract:
:Based on a single-chip DSP (TMS320C25, Texas Instruments) a programmable battery-operated sound processor with a digital encoder interface for the Nucleus-22 cochlear implant (CI) was built. The number of quasi-simultaneously addressed electrodes is only limited by the selected pulse width and the maximum rate of stimulation and can be as high as 10 electrodes at 300 Hz repetition rate. Implementation of various processing strategies (formant or channel vocoder, filterbank, zero crossings, etc.) is possible as well as sophisticated adaptive noise reduction. Programs and stimulation parameters are stored in electrically erasable memory and may be updated via a host computer. The built-in analog output may be used for single-channel stimulation or acoustic verifications of the sound processing algorithms. The power consumption with current 16K word data memory and at maximum stimulation rate is about 1 Watt, which necessitates recharging of batteries after 11 h.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Dillier N,Senn C,Schlatter T,Stöckli M,Utzinger Udoi
10.1080/00016489.1990.12088418subject
Has Abstractpub_date
1990-01-01 00:00:00pages
120-127issue
sup469eissn
0001-6489issn
1651-2251journal_volume
109pub_type
杂志文章abstract::The electromagnetic interference of the recently introduced bone-anchored hearing aid (BAHA) model "BAHA Compact" by digital cellular phones is investigated and compared with that of the older "BAHA Classic 300" model. Measurements with two different digital cellular phones in a laboratory setting indicated that the n...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480260092318
更新日期:2002-07-01 00:00:00
abstract:CONCLUSION:Partial deafness cochlear implantation (PDCI) is a feasible means of treating individuals who have good low frequency hearing, but a severe to profound hearing loss in the mid to high frequencies. The individuals have benefit in noise and show significant benefit in a number of difficult listening conditions...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480600606632
更新日期:2006-09-01 00:00:00
abstract::The inner ear responds immunologically to foreign proteins and pathogens introduced into the cochlea. The route of entry of the cells participating in the inner ear inflammatory process is the spiral modiolar vein with its collecting venules. Since this vein is located adjacent to the scala tympani, the end result of ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章,评审
doi:10.3109/00016489009107455
更新日期:1990-11-01 00:00:00
abstract::Surgery and radiotherapy are still the best local and regional treatments for the majority of head and neck cancer patients, each alone having an impressive cure rate. However, it appears that surgery and radiotherapy have reached their upper limits. To improve the results obtained by surgery and radiotherapy, combine...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章,评审
doi:10.3109/00016488909127520
更新日期:1989-05-01 00:00:00
abstract::The aim of the present study is to construct a reference model with the indication for the attitude, the requirements and the resources needed in order to be able to deal with deafness in the presence of disabilities or associated problems. The study group consisted of 13 adults and 18 children affected by profound de...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/03655230410017193
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVES:To assess the relationships between CD163 expression, localization of CD163+ macrophages, clinicopathological features and prognosis of NPC. METHODS:A total of 110 cases of NPC specimens and 80 cases of nasopharyngitis specimens were analysed for CD163 expression by immunohistochemistry and EBERs expression...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2017.1296585
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:Temperature-controlled radiofrequency volumetric tissue reduction (RFVTR) is a minimally invasive technique used in the treatment of the tongue base, soft palate and turbinates. Complications seem to be rare, but the scope of previous studies was often limited by the small number of patients included. The aim...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480310001385
更新日期:2003-05-01 00:00:00
abstract::Ultrastructural changes of the extrasensory epithelium in the scala media of guinea pig cochleae were observed from 3 to 137 days after perilymphatic perfusion with 20% streptomycin. The degeneration started in the organ of Corti, progressed to the interdental cells and roots of the outer sulcus cells and finally invo...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809107516
更新日期:1978-11-01 00:00:00
abstract::Formation of carotid artery pseudoaneurysm is uncommon after intensive treatment for head and neck cancer. We encountered a case of postoperative formation of pseudoaneurysm at the left carotid bifurcation in a diabetic man. The risk factors for carotid artery pseudoaneurysm in the patient included diabetes mellitus, ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480500437401
更新日期:2006-05-01 00:00:00
abstract:CONCLUSION:Endolymphatic hydrops could be a reversible inner ear pathological condition. After sac surgery, hydrops was reduced and symptoms went into remission in some cases, although vertigo suppression was not always a result of the reduced hydrops. OBJECTIVE:To examine the changes in endolymphatic hydrops detected...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2013.795290
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Intratympanic corticosteroid (IC), intravenous batroxobin (IB) as the treatment for sudden sensorineural hearing loss (SSNHL) has been reported. However, the data on combination therapy (CT) was scarce. OBJECTIVE:The aim of this retrospective study was to compare the efficacy of IC, IB, and CT in the treatm...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1592221
更新日期:2019-06-01 00:00:00
abstract::On-line measurement of ME gas composition in normal middle ears of 5 anesthetized guinea pigs at an established steady state was performed by mass spectrometry. The mean values for the gas composition of the middle ear were found to be: PN2: 82.4%, PO2: 7.6% and PCO2: 10.0%. This composition is very different from tha...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135824
更新日期:1993-05-01 00:00:00
abstract::Gamma-aminobutyric acid (GABA) is presumed to be a neurotransmitter candidate in the vestibular periphery of mammals. However, experimental reports about the localization of GABA in afferents or efferents of the vestibular systems are contradictory. It is an open question whether there are species differences in the a...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850155198
更新日期:1998-01-01 00:00:00
abstract::Nine subjects with long-term (8-30 years) occupational exposure to industrial solvents and a confirmed diagnosis of psycho-organic syndrome (POS) have been studied with audiological and otoneurological test batteries. The results were compared to a matched control group of nine industrial workers not exposed to solven...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488909127473
更新日期:1989-01-01 00:00:00
abstract::The effect of the extracellular calcium concentration on serially cultured rat middle ear epithelium was investigated with phase contrast microscopy, scanning electron microscopy, and transmission electron microscopy, as well as by a method to induce cornified envelope formation with a calcium ionophore. The results s...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009107420
更新日期:1990-01-01 00:00:00
abstract::This work describes the different patterns of expression of integrins and extracellular matrix proteins in normal and transformed mucosa in laryngeal and oropharyngeal carcinomas. Samples from each tumor group were sectioned and examined by immunohistochemistry using monoclonal antibodies raised against integrin chain...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480252814298
更新日期:2002-03-01 00:00:00
abstract::In order to develop the method of laterofixation of the vocal cord (Ejnell's method) in cases of bilateral vocal cord paralysis, six autopsy specimens of normal larynx were obtained. We inserted traction sutures under conditions of direct visualization and studied the relationship between the direction of the traction...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480260000120
更新日期:2002-06-01 00:00:00
abstract::Patients with Bell's palsy were investigated with regard to the cellular immune response during the acute and convalescent stages with the purpose of acquiring information concerning the etiology of the condition. In order to ascertain whether there was activation of the immune system, the proportion of activated T ce...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809119452
更新日期:1988-01-01 00:00:00
abstract::Beclomethasone dipropionate is a potent corticosteroid, which when applied by a pressurized metered dose aerosol in the airways has pronounced anti-allergic effects with no risk of systemic steroid side effects at the recommended dosage. An impressive effect in hay fever and perennial rhinitis has been demonstrated. A...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章
doi:10.3109/00016487609120897
更新日期:1976-09-01 00:00:00
abstract::The effects of transdermally administered scopolamine (TTS-scopolamine) (release rate 5 micrograms/h, one and two patches) and dimenhydrinate (100 mg) on caloric, angular acceleration induced and optokinetic nystagmus were examined in 16 volunteers in a randomized double-blind study. All drugs induced a statistically ...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016488509182266
更新日期:1985-05-01 00:00:00
abstract:CONCLUSION:Although this study did not show higher risk of oropharyngeal malignancy in HIV patients overall, they still had much higher prevalence of NHL as well as HL than HIV negative patients. Presence of cervical lymphadenopathy is unreliable in differentiating malignant oropharyngeal tumours from benign lymphoid h...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2016.1170878
更新日期:2016-09-01 00:00:00
abstract:CONCLUSION:Continuous positive airway pressure (CPAP) therapy improved not only apnea-hypopnea during sleep and sleep structure but also sleep-related deglutition, especially respiratory phase patterns associated with deglutition. OBJECTIVES:Sleep-related deglutition and related respiratory phase patterns in patients ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2010.520166
更新日期:2011-02-01 00:00:00
abstract::The biocompatibility of commercially available polyimides was examined in relation to the sensory and neural structures of the cochlea. Thin films of four different polyimides were prepared as substrates for photolithographically produced scala tympani electrode arrays and implanted in 32 cat cochleae. Following at le...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488909127474
更新日期:1989-01-01 00:00:00
abstract:CONCLUSION:The midline electroneurography (ENoG) method might reflect total facial nerve degeneration. OBJECTIVE:We compared ENoG values in patients with facial palsy using two different methods, the midline method and five electroneurogram recordings, to reveal whether the ENoG value obtained with the midline method ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.743680
更新日期:2013-03-01 00:00:00
abstract::Assessment of hearing handicap is frequently based on hearing loss in the frequency region from 0.5 to 2.0 kHz. The region above 2 kHz, however, is important for hearing, particularly when one considers speech perception in conditions with ambient noise. The present study, based on 200 individuals (400 ears) with nois...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.1990.12088407
更新日期:1990-01-01 00:00:00
abstract::Background: Betahistine is used worldwide to treat patients with Menière's disease. However, despite it being used for decades, diverging opinions on the effect of betahistine on Menière's symptomatology still exist.Aims: The objective of this systematic review was to provide an overview and rate the certainty of the ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1777326
更新日期:2020-10-01 00:00:00
abstract:CONCLUSIONS:Gentamicin ototoxicity presents with gait imbalance and oscillopsia, but only rarely with hearing loss and vertigo. Sinusoidal rotational stimuli with high accelerations such as the bedside head-thrust test or rotational step changes in velocity are useful to diagnose bilateral vestibulopathy. OBJECTIVE:To...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480600606673
更新日期:2006-10-01 00:00:00
abstract::Background: A set of Chinese Mandarin monosyllable test lists has been widely used in clinical diagnosis, while the performance of the Mandarin-speaking patients with auditory neuropathy (AN) in the monosyllable tests was still unknown.Objectives: To analyze the characteristics of monosyllable recognition in Mandarin-...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1726459
更新日期:2020-06-01 00:00:00
abstract::We studied the pathological changes in the temporal bone and brainstem, with particular attention to the autolysis of red blood cells in and around the blood vessels, in six cases of brainstem death determined by auditory brainstem responses (ABRs). Our findings showed that the cochlea, the visceral organs and the spi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489509139287
更新日期:1995-03-01 00:00:00
abstract::Audiogenic seizure risk can be induced in genetically seizure-resistant BALB/c mice by exposure to an intense noise. Results of this experiment showed that combined exposure to noise and sodium salicylate could produce a greater priming effect than exposure to the noise alone, and the greatest potentiation effect was ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488009131698
更新日期:1980-01-01 00:00:00