Usage of spline interpolation in catheter-based cardiac mapping

Bülent YILMAZ; Uğur CÜNEDİOĞLU; Engin BAYSOY

Makale detayları

Usage of spline interpolation in catheter-based cardiac mapping

Yazarlar:

Bülent YILMAZ | Uğur CÜNEDİOĞLU | Engin BAYSOY

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2010 Vol.18 Issue 6, pp.989-1002

Belge Tipi:

Makale

Yayın Tarihi:

5/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000743844

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

Due to their minimal invasiveness catheters are highly  preferred in cardiac mapping techniques used in the source  localization of rhythm disturbances in the heart.  In cardiac mapping,  standard steerable catheters and multielectrode basket catheters are  the two alternatives for the characterization of the underlying tissue  on the inner (endocardium) and outer (epicardium) surfaces of the  heart.  As with any discrete sampling technique, an important question  for catheter-based cardiac mapping is how to determine values at  locations from which direct measurements are not available.  Interpolation is the most common approach for providing values at  unmeasured sites using the available measurements.  In this study, the  usage of spline interpolation technique in catheter-based cardiac  mapping was introduced for the first time in the literature and  compared with the existing approaches such as the nearest-neighbor,  Laplacian, and Hardy's interpolation techniques.  For different  sampling resolutions on the endocardium and epicardium, we  reconstructed the activation-time values on unmeasured sites using  measured values.  To provide quantitative validation, we have applied  these methods to high resolution simulated activation-time values from  a realistic heart model using Aliev-Panfilov mathematical modeling  approach.  The results show that spline, Laplacian, and Hardy  interpolation methods performed successfully and also better than  nearest-neighbor method.  Among all interpolation schemes except for  the nearest-neighbor method the average correlation coefficient (CC)  values were greater than 0.985.

 

Due to their minimal invasiveness catheters are highly  preferred in cardiac mapping techniques used in the source  localization of rhythm disturbances in the heart.  In cardiac mapping,  standard steerable catheters and multielectrode basket catheters are  the two alternatives for the characterization of the underlying tissue  on the inner (endocardium) and outer (epicardium) surfaces of the  heart.  As with any discrete sampling technique, an important question  for catheter-based cardiac mapping is how to determine values at  locations from which direct measurements are not available.  Interpolation is the most common approach for providing values at  unmeasured sites using the available measurements.  In this study, the  usage of spline interpolation technique in catheter-based cardiac  mapping was introduced for the first time in the literature and  compared with the existing approaches such as the nearest-neighbor,  Laplacian, and Hardy's interpolation techniques.  For different  sampling resolutions on the endocardium and epicardium, we  reconstructed the activation-time values on unmeasured sites using  measured values.  To provide quantitative validation, we have applied  these methods to high resolution simulated activation-time values from  a realistic heart model using Aliev-Panfilov mathematical modeling  approach.  The results show that spline, Laplacian, and Hardy  interpolation methods performed successfully and also better than  nearest-neighbor method.  Among all interpolation schemes except for  the nearest-neighbor method the average correlation coefficient (CC)  values were greater than 0.985.

Makale detayları

Usage of spline interpolation in catheter-based cardiac mapping

Yazarlar: Bülent YILMAZ | Uğur CÜNEDİOĞLU | Engin BAYSOY

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2010 Vol.18 Issue 6, pp.989-1002

Belge Tipi: Makale

Yayın Tarihi: 5/2010

Belge Dili: Türkçe

Document ID (Org No.): 2000743844

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Bülent YILMAZ | Uğur CÜNEDİOĞLU | Engin BAYSOY

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2010 Vol.18 Issue 6, pp.989-1002

Belge Tipi:

Makale

Yayın Tarihi:

5/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000743844

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632