Geometrie analysis of cardiovascular dynamics during sleep and wakefulness

Mitsuyuki Nakao; Hiroshi Takagi; Satoshi Yokote; Yoshinari Mizutani; Mitsuaki Yamamoto; Masanori Munakata; Yutaka Imai; Keishi Abe

doi:10.1109/IEMBS.1992.5761065

Geometrie analysis of cardiovascular dynamics during sleep and wakefulness

Mitsuyuki Nakao, Hiroshi Takagi, Satoshi Yokote, Yoshinari Mizutani, Mitsuaki Yamamoto, Masanori Munakata, Yutaka Imai, Keishi Abe

Unprecedented-scale Data Analytics Center (UDAC)

Tohoku University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

We have investigated dynamics of cardiovascular variables during physiological states such as sleep and wakefulness. Their dynamics is modeled as a multidimensional autoregressive time series. Mutual geometric relations among state-dependent dynamics are obtained by means of the Kullback-Leibler divergence. The dynamics during sleep is markedly consistent compared to waking states within a subject. State-dependencies of cardiovascular dynamics and their mutual relations are suggested to uniquely characterize the autonomie regulation of cardiovascular system.

Original language	English
Title of host publication	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Editors	Robert Plonsey, Jean Louis Coatrieux, Swamy Laxminarayan, Jean Pierre Morucci
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	471-472
Number of pages	2
ISBN (Electronic)	0780307852
DOIs	https://doi.org/10.1109/IEMBS.1992.5761065
Publication status	Published - 1992
Event	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 - Paris, France Duration: 1992 Oct 29 → 1992 Nov 1

Publication series

Name	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Volume	2
ISSN (Print)	1557-170X

Conference

Conference	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Country/Territory	France
City	Paris
Period	92/10/29 → 92/11/1

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10.1109/IEMBS.1992.5761065

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Nakao, M., Takagi, H., Yokote, S., Mizutani, Y., Yamamoto, M., Munakata, M., Imai, Y., & Abe, K. (1992). Geometrie analysis of cardiovascular dynamics during sleep and wakefulness. In R. Plonsey, J. L. Coatrieux, S. Laxminarayan, & J. P. Morucci (Eds.), Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 (pp. 471-472). Article 5761065 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMBS.1992.5761065

Nakao, Mitsuyuki ; Takagi, Hiroshi ; Yokote, Satoshi et al. / Geometrie analysis of cardiovascular dynamics during sleep and wakefulness. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. editor / Robert Plonsey ; Jean Louis Coatrieux ; Swamy Laxminarayan ; Jean Pierre Morucci. Institute of Electrical and Electronics Engineers Inc., 1992. pp. 471-472 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS).

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abstract = "We have investigated dynamics of cardiovascular variables during physiological states such as sleep and wakefulness. Their dynamics is modeled as a multidimensional autoregressive time series. Mutual geometric relations among state-dependent dynamics are obtained by means of the Kullback-Leibler divergence. The dynamics during sleep is markedly consistent compared to waking states within a subject. State-dependencies of cardiovascular dynamics and their mutual relations are suggested to uniquely characterize the autonomie regulation of cardiovascular system.",

author = "Mitsuyuki Nakao and Hiroshi Takagi and Satoshi Yokote and Yoshinari Mizutani and Mitsuaki Yamamoto and Masanori Munakata and Yutaka Imai and Keishi Abe",

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year = "1992",

doi = "10.1109/IEMBS.1992.5761065",

language = "English",

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Nakao, M, Takagi, H, Yokote, S, Mizutani, Y, Yamamoto, M, Munakata, M, Imai, Y & Abe, K 1992, Geometrie analysis of cardiovascular dynamics during sleep and wakefulness. in R Plonsey, JL Coatrieux, S Laxminarayan & JP Morucci (eds), Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992., 5761065, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 471-472, 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992, Paris, France, 92/10/29. https://doi.org/10.1109/IEMBS.1992.5761065

Geometrie analysis of cardiovascular dynamics during sleep and wakefulness. / Nakao, Mitsuyuki; Takagi, Hiroshi; Yokote, Satoshi et al.
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. ed. / Robert Plonsey; Jean Louis Coatrieux; Swamy Laxminarayan; Jean Pierre Morucci. Institute of Electrical and Electronics Engineers Inc., 1992. p. 471-472 5761065 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Geometrie analysis of cardiovascular dynamics during sleep and wakefulness

AU - Nakao, Mitsuyuki

AU - Takagi, Hiroshi

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AU - Munakata, Masanori

AU - Imai, Yutaka

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AB - We have investigated dynamics of cardiovascular variables during physiological states such as sleep and wakefulness. Their dynamics is modeled as a multidimensional autoregressive time series. Mutual geometric relations among state-dependent dynamics are obtained by means of the Kullback-Leibler divergence. The dynamics during sleep is markedly consistent compared to waking states within a subject. State-dependencies of cardiovascular dynamics and their mutual relations are suggested to uniquely characterize the autonomie regulation of cardiovascular system.

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BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992

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Y2 - 29 October 1992 through 1 November 1992

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Nakao M, Takagi H, Yokote S, Mizutani Y, Yamamoto M, Munakata M et al. Geometrie analysis of cardiovascular dynamics during sleep and wakefulness. In Plonsey R, Coatrieux JL, Laxminarayan S, Morucci JP, editors, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. Institute of Electrical and Electronics Engineers Inc. 1992. p. 471-472. 5761065. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS). doi: 10.1109/IEMBS.1992.5761065

Geometrie analysis of cardiovascular dynamics during sleep and wakefulness

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