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Related Experiment Video

Updated: Jul 15, 2026

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices

Published on: August 25, 2023

Aortic valve leaflet sizer: a new device for aortic valve sparing.

Michel R Labrosse¹, Carsten J Beller

¹University of Ottawa, Department of Mechanical Engineering, Ottawa, Ontario, Canada. labrosse@eng.uottawa.ca

The Journal of Heart Valve Disease

|May 9, 2007

Summary

A new sizer tool accurately measures aortic valve leaflet dimensions during valve-sparing surgery. This device aids surgeons in achieving better patient outcomes by ensuring valve competence.

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Published on: December 11, 2017

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Last Updated: Jul 15, 2026

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices

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Published on: August 25, 2023

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

Area of Science:

Cardiovascular Surgery
Biomedical Engineering
Anatomical Measurement

Background:

Aortic valve-sparing surgery aims to preserve the native valve, but requires precise dimension correction for full competence.
Accurate measurement of leaflet height and free edge length is crucial for successful aortic valve repair.

Purpose of the Study:

To design and evaluate a novel sizer for simultaneously measuring aortic leaflet height and free edge length.
To assess the usability and dependability of the sizer in guiding aortic valve-sparing procedures.

Main Methods:

Development of a prototype sizer specifically for aortic valve leaflet dimensions.
Testing the sizer prototype in porcine hearts of varying sizes to validate measurements.

Main Results:

The sizer prototype was successfully built and utilized in porcine heart models.
The sizer demonstrated ease of use and provided dependable measurements of aortic leaflet dimensions.

Conclusions:

The developed sizer is a valuable new resource for surgeons performing aortic valve-sparing surgery.
Accurate intraoperative measurement using this sizer can lead to improved outcomes in aortic valve repair.