ROBINSON KOJI TSUJI
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina
2 resultados
Resultados de Busca
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- Avaliação do Naída CI Q70 e estratégia UltraZoom para o reconhecimento de fala em situações reverberantes e com ruído competitivo(2020) SAMUEL, Paola Angelica; GOFFI-GOMEZ, Maria Valéria Schmidt; HOSHINO, Ana Cristina; AGRAWAL, Smita; RODRIGUEZ, Carina; TSUJI, Robinson Koji; BENTO, Ricardo FerreiraAbstract Purpose 1) To measure speech understanding in noise with the Naída Q70 in the omnidirectional microphone mode (T-Mic) and adaptive directional microphone mode (UltraZoom) in reverberating acoustics and noisy conditions. 2) To measure improvement in speech understanding with use of the Advanced Bionics (AB) Naída Q70 sound processor for existing Harmony users. Methods Seven adult unilateral cochlear implant (CI) recipients, who were experienced users of the Harmony sound processor, participated in the study. Sentence recognition was evaluated in quiet in a reverberating room, with Harmony and Naída CI Q70 processors. Effectiveness of Naída CI Q70’s UltraZoom directional microphone was evaluated in noise. Target stimuli were recorded Portuguese sentences presented from 0° azimuth. Twenty-talker babble was presented at +5dB SNR from ±90° azimuth. In addition to sentence recognition, the participants also rated the clarity of sound and difficulty of listening in the various test conditions. In order to evaluate the outcomes under more realistic acoustic conditions, tests were conducted in a non-sound treated reverberant room (RT60 of 553 ms and noise floor of 42.7 dBA (Leq). Results The average sentence recognition in quiet in the reverberant non-sound treated room was 38.5% with the Harmony and 66.5% with Naída CI Q70. The average sentence recognition score in noise was 40.5% with Naída CI Q70 without UltraZoom and 64.5% with UltraZoom. For subjective ratings of sound clarity and listening ease in noise no difference were identified between the test conditions. Conclusion For experienced users of the Harmony sound processor, speech understanding in quiet in a reverberating room was significantly improved with the Naída CI Q70. The use of an adaptive directional microphone technology (UltraZoom) enhanced speech perception in noise.
- Auditory and language skills in children with auditory brainstem implants(2020) FERNANDES, Nayara Freitas; GOMES, Marcos de Queiroz Teles; TSUJI, Robinson Koji; BENTO, Ricardo Ferreira; GOFFI-GOMEZ, Maria Valria SchimdtObjective: The aim of this study is to characterize the development of auditory and language skills in children during the first 3 years of auditory brainstem implant (ABI) use. Method: It is a retrospective longitudinal analysis of auditory and language skills in 12 children and pre-adolescents with pre-lingual deafness following ABI surgery (mean age at surgery: 4 years; age range: 2-11 years). Responses were analyzed aboutInfant Toddler Meaningful Auditory Integration Scale (IT-MAIS), MAIS, and Meaningful Use of Speech Scale (MUSS) at 1, 3, 6, 12, 18, 24, and 36 months after ABI activation. Results: Maximum IT-MAIS/MAIS and MUSS scores after 3 years of ABI use were 45.35% and 35.28%, respectively. Conclusion: Pediatric patients exhibit slow progressive development of auditory and language skills following ABI activation.