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Research Article

Stereotactic radiofrequency thermocoagulation application in the anterior limbs of patients’ internal capsules in treating intractable tic disorders

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Pages 332-337 | Received 05 Dec 2019, Accepted 20 Mar 2020, Published online: 07 Apr 2020

Figures & data

Figure 1. Measurement of the width and length of the anterior limb of the internal capsule on magnetic resonance imaging (MRI). (A&B) On the axial plane of MRI, the width of the anterior limb of the internal capsule was shown. On the axial plane, the width of the anterior limb of the internal capsule was 2.4 mm–2.8 mm In one patient (A) and 3.7 mm–3.8 mm in another patient (B). (C&D) On the coronal plane of MRI, the length of the anterior limb of the internal capsule was shown. The length of the anterior limb of the internal capsule was 14.3 mm–15.2 mm in one patient (C) and 17.2 mm–18.4 mm in another patient (D).

Figure 1. Measurement of the width and length of the anterior limb of the internal capsule on magnetic resonance imaging (MRI). (A&B) On the axial plane of MRI, the width of the anterior limb of the internal capsule was shown. On the axial plane, the width of the anterior limb of the internal capsule was 2.4 mm–2.8 mm In one patient (A) and 3.7 mm–3.8 mm in another patient (B). (C&D) On the coronal plane of MRI, the length of the anterior limb of the internal capsule was shown. The length of the anterior limb of the internal capsule was 14.3 mm–15.2 mm in one patient (C) and 17.2 mm–18.4 mm in another patient (D).

Figure 2. Radiofrequency thermocoagulation in the anterior limbs of internal capsule. (A) The angle of anterior limbs of the internal capsule was shown for location of thermocoagulation. (B) Radiofrequency thermocoagulation was performed in the anterior limbs of internal capsule. (C&D) Eight days after the thermocoagulation, the thermocoagulation lesions were shown in the anterior limbs of the internal capsules.

Figure 2. Radiofrequency thermocoagulation in the anterior limbs of internal capsule. (A) The angle of anterior limbs of the internal capsule was shown for location of thermocoagulation. (B) Radiofrequency thermocoagulation was performed in the anterior limbs of internal capsule. (C&D) Eight days after the thermocoagulation, the thermocoagulation lesions were shown in the anterior limbs of the internal capsules.

Table 1. YGTSS scores and effective rates before and after surgery (mean ± SD).

Table 2. SDA and serotonin before and after radiofrequency thermocoagulation (mean ± SD, ng/ml).