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Fig. 8 | Journal of Cardiovascular Magnetic Resonance

Fig. 8

From: Cardiovascular magnetic resonance guided ablation and intra-procedural visualization of evolving radiofrequency lesions in the left ventricle

Fig. 8

Histological sections of ablated tissue. Full extent of the lesion is shown in (a) stained with H&E, which highlights morphologic changes. e Full extent of the lesion stained with MT. b Magnified H&E section from the lesion core, showing cells exhibiting redistribution of extra/intracellular fluids due to thermal coagulation (resulting in the darker appearance of tissue). c Magnified H&E section from the lesion rim. Wide interstitium (black arrowheads) is evident relative to (d), healthy remote tissue. f-h Magnified MT sections from tissue zones corresponding to the H&E panels above. In the lesion rim, panels (c) and (g), extravasated red blood cells (RBCs) and vessels containing thrombosed RBCs (white arrowhead), blocking blood flow, are evident. All scale bars = 1 mm

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