Estimating Relative Change in Ventricular Stroke Work from Aortic Pressure Alone: Proof of Concept Study

[en] Continuous Ventricular Stroke Work (VSW) estimation requires accurate estimate of both stroke volume and aortic pressure. However, accurate beat-to-beat stroke volume measurement is highly invasive and thus typically unavailable in clinical practice. This study analyses the accuracy of a model-based method estimating relative change in VSW using only aortic pressure measurements. Using data from porcine experiment, the correlation coefficient was determined between the relative change of VSW from directly measured data and the model-based estimate of VSW. The result showed good agreement with, R=0.71. The model accurately captured the trend of VSW using only aortic pressure measurements and thus offers significant clinical value in early diagnosis and improving care for cardiovascular dysfunction.

Disciplines :

Cardiovascular & respiratory systems
Engineering, computing & technology: Multidisciplinary, general & others

Author, co-author :

Kamoi, Shun

Pretty, Christopher

Chiew, Yeong Shiong

Pironet, Antoine ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles

Desaive, Thomas ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles

Shaw, Geoffrey

Chase, J. Geoffrey

Language :

English

Title :

Estimating Relative Change in Ventricular Stroke Work from Aortic Pressure Alone: Proof of Concept Study

Publication date :

2014

Event name :

48th DGBMT Biomedizinische Technik Conference (BMT 2014)

Event place :

Hannover, Germany

Event date :

du 8 au 10 octobre 2014

Audience :

International

Journal title :

Biomedizinische Technik. Biomedical Engineering

ISSN :

0013-5585

eISSN :

1862-278X

Publisher :

Walter de Gruyter, Berlin, Germany

Pages :

S960-S963

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 12 February 2015

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