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. 2014 Dec 9;9(12):e114577. doi: 10.1371/journal.pone.0114577

Table 1. Spatial rotor localization.

Coordinates Coordinates Euclidean
LAT method (mm) Inline graphic method (mm) distance (mm)
Rotor tip R1
Interval (s) x y z x y z d
0 to 1 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 0.91
1 to 2 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 0.00
2 to 3 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 1.66
3 to 4 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 1.44
Rotor tip R2
Interval (s) x y z x y z d
0 to 1 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 0.95
1 to 2 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 0.66
2 to 3 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 0
3 to 4 Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 1.32

Comparison between ApEn and the LAT method. Spatial location of Inline graphic over the 3D atria anatomical structure. The coordinates were found by two methods: the LAT method, as a reference, and the Inline graphic map method. Euclidean distance is used to compare the performance of the two methods for four time intervals 1 s in length.