PMC5228703_01
PMC5228703_02
PMC5228703_03
Planning to set up the lesion coordinates of the target and the angles of electrode penetration in the anterior limb of the capsule and amygdala.
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F1
We then used SurgiPlan workstation (Elekta Instrument AB, Stockholm, Sweden) and Leksell stereotactic operation system (Elekta Instruments AB) to calculate the targets (Fig. 1) and inserted the lesion electrodes into the targets.
(A) T2-weighted MRI 10 days after the first surgery. (B) T2-weighted MRI 12 months after the first surgery. Black arrows indicate lesions produced by the first surgery.
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F2
The length of the lesions was 12 to 15 mm in the anterior limb of the internal capsule and 4 to 8 mm in the amygdala (Fig. 2).
PMC5228703_04
(A) T2-weighted MRI 6 months after the second surgery. (B) T1-weighted MRI 6 months after the second surgery. Black arrows indicate lesions produced by the first surgery. White arrows indicate lesions produced by the second surgery.
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F3
We then considered another bilateral amygdalotomy to produce larger lesions in the amygdala than during the first surgery (Fig. 3).