case_images: PMC10798164_01
case_images: Pre- and postoperative imaging and clinical course. Fast gray matter acquisition T1 inversion recovery magnetic resonance imaging sequences (oblique coronal and axial) to plan lead positioning preoperatively and computed tomography scans (coronal and axial) to evaluate lead placement postoperatively in the (A) left posteroventral globus pallidus interna (pvlGPI) and (B) right pvlGPI. (C) Change in blepharospasm-like tic frequency from before surgery to 6-months after bilateral pvlGP deep brain stimulation.
case_images: tohm-14-1-837-g1.jpg
case_images: PMC10798164_01_tohm-14-1-837-g1.jpg
case_images: F1
case_images: The target coordinates of the left pvlGPi were X = 20.5 mm to the left, Y = 4.0 mm anterior, Z = 7.0 mm inferior, AC-PC angle = 60.3 , and center line angle = 10.1  to the left; those of the right pvlGPi were X = 21.0 mm to the right, Y = 4.0 mm anterior, Z = 5.5 mm inferior, AC-PC angle = 60.5 , and center line angle = 11.1  to the right (Table 1, Figure 1). Lead placement was confirmed on postoperative computed tomography (Figure 1). The blink frequency was determined (times/min) from video recordings of the patient made at baseline, on postoperative day (POD) 1 and POD 7, and at 6 months after the surgery (Figure 1).