Dataset Information

PET/CT background noise and its effect on speech recognition.

ABSTRACT: Positron emission tomography (PET) has been successfully used to investigate central nervous processes, including the central auditory pathway. Unlike early water-cooled PET-scanners, novel PET/CT scanners employ air cooling and include a CT system, both of which result in higher background noise levels. In the present study, we describe the background noise generated by two state-of-the-art air-cooled PET/CT scanners. We measured speech recognition in background noise: recorded PET noise and a speech-shaped noise applied in clinical routine to subjects with normal hearing. Background noise produced by air-cooled PET/CT is considerable: 75.1 dB SPL (64.5 dB(A)) for the Philips Gemini TF64 and 76.9 dB SPL (68.4 dB(A)) for the Philips Vereos PET/CT (Philips Healthcare, The Netherlands). Subjects with normal hearing exhibited better speech recognition in recorded PET background noise compared with clinically applied speech-shaped noise. Speech recognition in both background noises correlated significantly. Background noise generated by PET/CT scanners should be considered when PET is used for the investigation of the central auditory pathway. Speech in PET noise is better than in speech-shaped noise because of the minor masking effect of the background noise of the PET/CT.

SUBMITTER: Speck I

PROVIDER: S-EPMC8585948 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature

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PET/CT background noise and its effect on speech recognition.

Speck Iva I Rottmayer Valentin V Wiebe Konstantin K Aschendorff Antje A Thurow Johannes J Frings Lars L Meyer Philipp T PT Wesarg Thomas T Arndt Susan S

Scientific reports 20211111 1

Positron emission tomography (PET) has been successfully used to investigate central nervous processes, including the central auditory pathway. Unlike early water-cooled PET-scanners, novel PET/CT scanners employ air cooling and include a CT system, both of which result in higher background noise levels. In the present study, we describe the background noise generated by two state-of-the-art air-cooled PET/CT scanners. We measured speech recognition in background noise: recorded PET noise and a ...[more]

PMID: 34764407

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PET/CT background noise and its effect on speech recognition.

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PET/CT background noise and its effect on speech recognition.

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