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Table 1 In vivo CMR thermometry results on 3 sheep. Parameters of 12 RFA are reported in this Table: the power, the duration and the energy of the RF delivery, the maximal temperature reached in the LV and the 2D dimensions of each lesion created

From: Feasibility of real-time MR thermal dose mapping for predicting radiofrequency ablation outcome in the myocardium in vivo

Lesion sizes in 2D
Sheep # RFA # Power (W) Dur. (s) Energy (J) Temp max (°C) TD map (mm2) T1-w (mm2)
1 1 60 60 3600 30 °C 9×4 9×5
2 60 90 5400 55 °C 6.5×4 7×4
3 70 100 7000 30 °C 8×3 9×3
4 70 90 6300 40 °C 7.5×5 6.5×4
2 1 60 60 3600 40 °C 11×4 11×5
2 60 60 3600 45 °C 12.5×6 11×5.5
3 50 90 4500 35 °C 5×8 6×6
4 60 60 3600 45 °C 10×6 9×5
3 1 50 90 4500 55 °C 12×10 10×7
2 50 60 3000 30 °C 8×8 8×6
3 50 70 3500 55 °C 10.5×7 10×7
4 70 40 2800 75 °C 10×7 10×7
  1. Lesion extent maximal dimensions were measured in 2D on the cumulative TD maps and on the equivalent slice of the 3D T1-w volume
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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