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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Int J Hyperthermia. 2016 Jul 21;32(7):786–794. doi: 10.1080/02656736.2016.1197972

Figure 4.

Figure 4

Follow-up contrast-enhanced cropped MR and CT images from subacute experiment 1, showing the changes in contrast uptake from ablation of the vertebral level target at L4 using 9 sonications. Location of the axial slice (A) is shown with white dashed line on the oblique coronal image (C), and the axial slice shown in (B) is positioned adjacent and caudal to slice in A. Thermal lesions appear as non-enhancing areas (white arrows) due to the lack of perfusion resulting from thermal damage. The dashed double-sided arrow in D shows the measurement of the extent of the lesion along the hypotenuse between the transverse and articular processes as reported in Table 1. The solid double-sided arrow shows the measurement of the thickness of the pedicle bone. Scale bar is 2 cm.