[Heart sounds in the polygraphic evaluation of the phases of the cardiac cycle. Critical review. I. The atrial sound].
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Atrial Function↗
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[Heart sounds in the polygraphic evaluation of the phases of the cardiac cycle. Critical review. II. The 1st sound].
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Cardiac Output↗
[Heart sounds in the polygraphic evaluation of the phases of the cardiac cycle. Critical review. 3. The 2d sound].
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Cardiac Output↗
[Heart sounds in the polygraphic evaluation of the phases of the cardiac cycle. Critical review. IV. The 3d sound].
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Cardiac Output↗
[Phonocardiography of mitral stenosis. Diastolic murmur. 3rd sound and initial jerk of the murmur. 2nd pulmonary sound. Apex systolic souffles].
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Humans↗
[Bone production of sound and bone sound conduction].
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Acoustics↗
[Occurrence of the 5th heart sound and its relations to left and right ventricular 3rd heart sound].
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Adolescent↗
[Experimental study on sound perception--accuracy of musical scale with sound loading among members of a chorus group].
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Female↗
[Dynocardiogram of heart sounds (end). Procedure for the continous bloodless registration of cardiodynamics or cardiac output by means of the heart sound].
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Biometry↗
[The relationship between residual masking and the duration of the masking sound in the presence of various intervals between sounds].
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Adult↗
[Relationship between the sound level of the first heart sound and intracardiac pressure curve in absolute arrhythmia].
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Adult↗
[Experimental studies of the accuracy of sound discrimination (accuracy of sound range discrimination)].
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Auditory Perception↗
[Atrial sound and accidental reinforcement of the first sound during complete atrioventricular block].
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Journal Article↗
[Dynocardiography of the heart sound. A procedure for continuous bloodless registration of heart dynamics or the stroke volume by means of the heart sound].
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Cardiac Output↗
[Normal cardiac sounds and their principal pathological changes. 3. The third heart sound].
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Heart Auscultation↗
[Glaucoma - its nature, significance, treatment. Slide show with sound (51 slides, sound track cassette)].
A slide show is presented on primary glaucoma made for the instruction of laymen. The slide show should provide information for patients, but first of all it is meant to be a help for preventive measures.
Audiovisual Aids↗
"A-sounds" or "s-sounds" for doppler ultrasonic evaluation of pelvic vein thrombosis.
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Doppler Effect↗
Development of an alarm sound database and simulator.
OBJECTIVES: The purpose of this study was to develop an interactive software package of alarm sounds to present, recognize and share problems about alarm sounds among medical staff and medical manufactures. METHODS: The alarm sounds were recorded in variable alarm conditions in a WAV file. The alarm conditions were arbitrarily induced by modifying attachments of various medical devices. The software package that integrated an alarm sound database and simulator was used to assess the ability to identify the monitor that sounded the alarm for the medical staff. RESULTS: Eighty alarm sound files (40MB in total) were recorded from 41 medical devices made by 28 companies. There were three pairs of similar alarm sounds that could not easily be distinguished, two alarm sounds which had a different priority, either low or high. The alarm sound database was created in an Excel file (ASDB.xls 170 kB, 40 MB with photos), and included a list of file names that were hyperlinked to alarm sound files. An alarm sound simulator (AlmSS) was constructed with two modules for simultaneously playing alarm sound files and for designing new alarm sounds. The AlmSS was used in the assessing procedure to determine whether 19 clinical engineers could identify 13 alarm sounds only by their distinctive sounds. They were asked to choose from a list of devices and to rate the priority of each alarm. The overall correct identification rate of the alarm sounds was 48%, and six characteristic alarm sounds were correctly recognized by beetween 63% to 100% of the subjects. The overall recognition rate of the alarm sound priority was only 27%. CONCLUSIONS: We have developed an interactive software package of alarm sounds by integrating the database and the alarm sound simulator (URL: http://info.ahs.kitasato-u.ac.jp/tkweb/alarm/asdb.html ). The AlmSS was useful for replaying multiple alarm sounds simultaneously and designing new alarm sounds interactively.
Biomedical Engineering↗