Fig. 5From: Evaluation of MRI protocols for the assessment of lumbar facet joints after MR-guided focused ultrasound treatmentAxial T2-weighted images. a Acquired before FUS. b After FUS treatment. The lesion is clearly visible as hyperintense signal, suggesting the presence of edema. The sonication energy used for the depicted joint was 800Â J. Smaller lesion sizes were generated with smaller sonication energiesBack to article page