Question
Regarding saccade testing during ENG/VNG, can you define what is a "crisp waveform"? I have heard of this term used to describe abnormality in saccades, but what does it mean and how do you measure it? Can you have an "uncrisp" waveform but normal latency, velocity, and accuracy?
Answer
I have not heard that term recently. It probably applies to non-computerized ENG where the analysis of saccades was limited to the visual inspection of the tracings. Therefore, a "crisp waveform" refers to saccades that are sufficiently accurate and fast. Saccade waveforms that are not "crisp" cannot be normal because in non-computerized systems, only grossly abnormal saccade velocity or saccade accuracy can be detected. On the other hand, "crisp" saccades are not necessarily normal because non-computerized systems typically do not measure saccade latencies.
Kamran Barin, Ph.D. is the Director of Balance Disorders Clinic at the Ohio State University Medical Center and Assistant Professor, Department of Otolaryngology, Department of Speech and Hearing Sciences, and Biomedical Engineering Program. He received his Master's and Doctorate degrees in Electrical/Biomedical Engineering from The Ohio State University. He has taught national and international courses and seminars in different areas of vestibular assessment and rehabilitation. He has served on NIH and NASA panels and was an appointed member of the Equilibrium Subcommittee of the American Neurotology Society. He works as a consultant to GN Otometrics and provides courses and other educational material to the company.
Kamran Barin, PhD
Director of Balance Disorders Clinic at the Ohio State University Medical Center and Assistant Professor, Department of Otolaryngology-Head and Neck Surgery, Department of Speech and Hearing Science, and Biomedical Engineering Program
Kamran Barin, Ph.D. is the Director of Balance Disorders Clinic at the Ohio State University Medical Center and Assistant Professor, Department of Otolaryngology-Head and Neck Surgery, Department of Speech and Hearing Science, and Biomedical Engineering Program. He received his Master’s and Doctorate degrees in Electrical/Biomedical Engineering from the Ohio State University. He has taught national and international courses and seminars in different areas of vestibular assessment and rehabilitation. Kamran Barin is a consultant to Otometrics and provides courses and other educational material to the company
Related Courses
1https://www.audiologyonline.com/audiology-ceus/course/guide-to-bithermal-caloric-testing-815A Guide to Bithermal Caloric TestingThe purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.auditory, textual, visual129USDSubscriptionUnlimited COURSE Access for $129/yearOnlineOnlyAudiologyOnlinewww.audiologyonline.comA Guide to Bithermal Caloric TestingThe purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.815OnlinePT60M
The purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.
2https://www.audiologyonline.com/audiology-ceus/course/guide-to-bithermal-caloric-testing-36752A Guide to Bithermal Caloric TestingThe purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.auditory, textual, visual129USDSubscriptionUnlimited COURSE Access for $129/yearOnlineOnlyAudiologyOnlinewww.audiologyonline.comA Guide to Bithermal Caloric TestingThe purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.36752OnlinePT60M
The purpose of this course is to provide an in-depth discussion of the caloric testing portion of the VNG/ENG test battery. Content will include descriptions of testing procedures, analysis and interpretation of results.
3https://www.audiologyonline.com/audiology-ceus/course/utilization-ics-impulse-for-oculomotor-33756Utilization of the ICS Impulse for Oculomotor Assessment in VideonystagmographyThis presentation describes the use of the ICS Impulse for the assessment of the oculomotor pathway in patients with vestibular pathology. Specific attention will be given regarding which tests analyze similar neurological pathways. The use of a different protocol using the ICS goggles compared to using the traditional VNG protocol will be explored.auditory, textual, visual129USDSubscriptionUnlimited COURSE Access for $129/yearOnlineOnlyAudiologyOnlinewww.audiologyonline.comUtilization of the ICS Impulse for Oculomotor Assessment in VideonystagmographyThis presentation describes the use of the ICS Impulse for the assessment of the oculomotor pathway in patients with vestibular pathology. Specific attention will be given regarding which tests analyze similar neurological pathways. The use of a different protocol using the ICS goggles compared to using the traditional VNG protocol will be explored.33756OnlinePT60M
This presentation describes the use of the ICS Impulse for the assessment of the oculomotor pathway in patients with vestibular pathology. Specific attention will be given regarding which tests analyze similar neurological pathways. The use of a different protocol using the ICS goggles compared to using the traditional VNG protocol will be explored.
4https://www.audiologyonline.com/audiology-ceus/course/addressing-fall-risk-pt-ot-38144Addressing Fall Risk: PT, OT, and Audiology Assessment and Intervention, presented in partnership with Salus UniversityMultidisciplinary assessment and intervention of individuals at risk of falls is crucial in identifying functional and diagnostic factors as well as effective rehabilitation and prevention of future falls. This series identifies areas of collaboration and supportive information-sharing strategies between professions who commonly see individuals who fall and are likely to be injured due to a fall.auditory, textual, visual129USDSubscriptionUnlimited COURSE Access for $129/yearOnlineOnlyAudiologyOnlinewww.audiologyonline.comAddressing Fall Risk: PT, OT, and Audiology Assessment and Intervention, presented in partnership with Salus UniversityMultidisciplinary assessment and intervention of individuals at risk of falls is crucial in identifying functional and diagnostic factors as well as effective rehabilitation and prevention of future falls. This series identifies areas of collaboration and supportive information-sharing strategies between professions who commonly see individuals who fall and are likely to be injured due to a fall.38144OnlinePT180M
Multidisciplinary assessment and intervention of individuals at risk of falls is crucial in identifying functional and diagnostic factors as well as effective rehabilitation and prevention of future falls. This series identifies areas of collaboration and supportive information-sharing strategies between professions who commonly see individuals who fall and are likely to be injured due to a fall.
5https://www.audiologyonline.com/audiology-ceus/course/contemporary-concepts-in-pediatric-vestibular-35586Contemporary Concepts in Pediatric Vestibular Assessment and Management, presented in partnership with Seminars in HearingThis 5-part webinar series is focused on the growing evidence of the need for pediatric vestibular evaluation, as well as the availability of successful treatment options for children. Guest editors, Dr. Devin McCaslin and Dr. Jennifer Christy along with a team of leading experts will present on select articles from a recent issue of the journal Seminars in Hearing (Issue 03 · Volume 39 · 2018).auditory, textual, visual129USDSubscriptionUnlimited COURSE Access for $129/yearOnlineOnlyAudiologyOnlinewww.audiologyonline.comContemporary Concepts in Pediatric Vestibular Assessment and Management, presented in partnership with Seminars in HearingThis 5-part webinar series is focused on the growing evidence of the need for pediatric vestibular evaluation, as well as the availability of successful treatment options for children. Guest editors, Dr. Devin McCaslin and Dr. Jennifer Christy along with a team of leading experts will present on select articles from a recent issue of the journal Seminars in Hearing (Issue 03 · Volume 39 · 2018).35586OnlinePT300M
Presented by Sharon Cushing, MD, FRCSC, Katheryn Bachmann, PhD, Violette Lavender, AuD, Jennifer B. Christy, PhD, PT, Steven M. Doettl, AuD, PhD, Devin L. McCaslin, PhD, Kristen L. Janky, PhD, Amanda I. Rodriguez, PhD, AuD
AudiologyOnline
Presenters
Sharon Cushing, MD, FRCSCKatheryn Bachmann, PhDViolette Lavender, AuDJennifer B. Christy, PhD, PTSteven M. Doettl, AuD, PhDDevin L. McCaslin, PhDKristen L. Janky, PhDAmanda I. Rodriguez, PhD, AuD
This 5-part webinar series is focused on the growing evidence of the need for pediatric vestibular evaluation, as well as the availability of successful treatment options for children. Guest editors, Dr. Devin McCaslin and Dr. Jennifer Christy along with a team of leading experts will present on select articles from a recent issue of the journal Seminars in Hearing (Issue 03 · Volume 39 · 2018).
