TY - GEN
T1 - A technique for visualising three-dimensional left atrial cardiac activation data in two dimensions with minimal distance distortion
AU - Roney, Caroline H.
AU - Tzortzis, Konstantinos N.
AU - Cantwell, Chris D.
AU - Qureshi, Norman A.
AU - Ali, Rheeda L.
AU - Lim, Phang Boon
AU - Siggers, Jennifer H.
AU - Ng, Fu Siong
AU - Peters, Nicholas S.
PY - 2015/11/4
Y1 - 2015/11/4
N2 - Electro-anatomic mapping and medical imaging systems, used during clinical procedures for treatment of atrial arrhythmias, frequently record and display measurements on an anatomical surface of the left atrium. As such, obtaining a complete picture of activation necessitates simultaneous views from multiple angles. In addition, post-processing of three-dimensional surface data is challenging, since algorithms are typically applicable to planar or volumetric data. We applied a surface flattening methodology to medical imaging data and electro-anatomic mapping data to generate a two-dimensional representation that best preserves distances, since the calculation of many clinically relevant metrics, including conduction velocity and rotor trajectory identification require an accurate representation of distance. Distance distortions were small and improved upon exclusion of the pulmonary veins. The technique is demonstrated using maps of local activation time, based on clinical data, and plotting rotor-core trajectories, using simulated data.
AB - Electro-anatomic mapping and medical imaging systems, used during clinical procedures for treatment of atrial arrhythmias, frequently record and display measurements on an anatomical surface of the left atrium. As such, obtaining a complete picture of activation necessitates simultaneous views from multiple angles. In addition, post-processing of three-dimensional surface data is challenging, since algorithms are typically applicable to planar or volumetric data. We applied a surface flattening methodology to medical imaging data and electro-anatomic mapping data to generate a two-dimensional representation that best preserves distances, since the calculation of many clinically relevant metrics, including conduction velocity and rotor trajectory identification require an accurate representation of distance. Distance distortions were small and improved upon exclusion of the pulmonary veins. The technique is demonstrated using maps of local activation time, based on clinical data, and plotting rotor-core trajectories, using simulated data.
UR - http://www.scopus.com/inward/record.url?scp=84953209594&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2015.7320076
DO - 10.1109/EMBC.2015.7320076
M3 - Chapter in a published conference proceeding
C2 - 26737976
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 7296
EP - 7299
BT - 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015
PB - IEEE
CY - U. S. A.
T2 - 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015
Y2 - 25 August 2015 through 29 August 2015
ER -