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Updated: May 25, 2026

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
Published on: November 7, 2019
Ballistocardiography--a method worth revisiting
Laurent Giovangrandi1, Omer T Inan, Richard M Wiard
1Electrical Engineering Department, Stanford University, Stanford, CA 94305, USA. giovan@stanford.edu
Ballistocardiography (BCG) is experiencing a revival with new technologies. Modern unobtrusive BCG methods offer improved chances for widespread clinical use in monitoring heart conditions.
Area of Science:
- Biomedical Engineering
- Cardiovascular Physiology
- Medical Signal Processing
Background:
- Ballistocardiography (BCG) research has seen a significant resurgence after a period of decline.
- Novel technologies and advanced signal processing methods are driving this revival.
- Past limitations hindered BCG's adoption as a widespread clinical tool.
Purpose of the Study:
- To compare and contrast the current wave of BCG research with historical approaches.
- To evaluate the potential of new BCG methods for clinical applications.
- To highlight key differences that may enable broader adoption.
Main Methods:
- Review and comparison of recent advancements in BCG technology and signal processing.
- Analysis of novel approaches in the context of authors' own work.
- Focus on unobtrusive, frequent, and remote measurement capabilities.
Main Results:
- New BCG technologies and signal processing methods differ significantly from past embodiments.
- Unobtrusive and frequent measurement capabilities are key advancements.
- The technique is well-positioned for applications like cardiac resynchronization therapy optimization and heart failure monitoring.
Conclusions:
- The current resurgence of ballistocardiography holds significant promise for clinical integration.
- Technological advances enable unobtrusive and frequent measurements, addressing previous limitations.
- BCG is poised to become a valuable tool for monitoring and trending cardiovascular conditions.
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