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Published in: International Journal of Computer Assisted Radiology and Surgery 6/2018

Open Access 01-06-2018 | Original Article

LV function validation of computer-assisted interventional system for cardiac resyncronisation therapy

Authors: Maria Panayiotou, R. James Housden, Athanasius Ishak, Alexander Brost, Christopher A. Rinaldi, Benjamin Sieniewicz, Jonathan M. Behar, Tanja Kurzendorfer, Kawal S. Rhode

Published in: International Journal of Computer Assisted Radiology and Surgery | Issue 6/2018

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Abstract

Purpose

Cardiac resynchronisation therapy (CRT) is an established treatment for symptomatic patients with heart failure, a prolonged QRS duration, and impaired left ventricular (LV) function; however, non-response rates remain high. Recently proposed computer-assisted interventional platforms for CRT provide new routes to improving outcomes. Interventional systems must process information in an accurate, fast and highly automated way that is easy for the interventional cardiologists to use. In this paper, an interventional CRT platform is validated against two offline diagnostic tools to demonstrate that accurate information processing is possible in the time critical interventional setting.

Methods

The study consisted of 3 healthy volunteers and 16 patients with heart failure and conventional criteria for CRT. Data analysis included the calculation of end-diastolic volume, end-systolic volume, stroke volume and ejection fraction; computation of global volume over the cardiac cycle as well as time to maximal contraction expressed as a percentage of the total cardiac cycle.

Results

The results showed excellent correlation (\(R^{2}\) values of \(>\,0.99\) and Pearson correlation coefficient of \(>\,0.98\)) with comparable offline diagnostic tools.

Conclusion

Results confirm that our interventional system has good accuracy in everyday clinical practice and can be of clinical utility in identification of CRT responders and LV function assessment.
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Metadata
Title
LV function validation of computer-assisted interventional system for cardiac resyncronisation therapy
Authors
Maria Panayiotou
R. James Housden
Athanasius Ishak
Alexander Brost
Christopher A. Rinaldi
Benjamin Sieniewicz
Jonathan M. Behar
Tanja Kurzendorfer
Kawal S. Rhode
Publication date
01-06-2018
Publisher
Springer International Publishing
Published in
International Journal of Computer Assisted Radiology and Surgery / Issue 6/2018
Print ISSN: 1861-6410
Electronic ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-018-1748-0

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