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. 2016 May 31;6:26744. doi: 10.1038/srep26744

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Copyright © 2016, Macmillan Publishers Limited

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(A) Brightfield image of LV free wall showing placement of suction electrode and location of scar. Bar = 1 mm. (B) Activation map obtained during sinus rhythm. (C) Activation map obtained when the heart was paced with a suction electrode positioned within the scar (white circle). White arrow points to the site of earliest activation. Black arrows indicate the direction of propagation. Isochronal lines are drawn every 1 ms.