PMC5980955_01
PMC5980955_02
Illustration of the three-dimensional anatomical location of the electrodes (patient 1). (A) Frontal view of the electrodes (in yellow) with the different contacts (white) and three-dimensional view of STN (in blue), and SNr (in purple). This representation is superimposed on the coronal T2 preoperative MRI of patient 1 to illustrate the location of the STN and SNr. Each electrode had four contacts with the length of 1.5 mm separated by 0.5 mm intervals and numbered from 0 to 3 in the right hemisphere. Contact 0 is the deepest contact (green). (B) Frontal view of the right STN and SNr. (C) Anterolateral view of the right STN and SNr. (D) Superior view of right STN and SNr. In (B-D), the STN and SN were represented in transparency to show the location of the contacts and visualize the "laughter" contact 0 localized within the ventral and medial STN. LV, lateral ventricle; TH, thalamus; TL, temporal lobe.
fneur-09-00341-g001.jpg
PMC5980955_02_fneur-09-00341-g001.jpg
F1
After matching, the anatomical location was determined contact by contact in a three-dimensional anatomical environment for each patient (Figures 1 and 2). Analysis of the postsurgical images showed that contact 0 was ventrally and medially located electrode within the STN (Figure 1).
Illustration of the three-dimensional anatomical location of the electrodes (patient 2). (A) Frontal view of the electrodes (in yellow) with the different contacts (white) and three-dimensional view of the STN (in blue), and SNr (in purple). This representation is superimposed on the coronal T2 preoperative MRI of patient 2 to illustrate the location of the STN and SNr. Each electrode had four contacts with the length of 1.5 mm separated by 0.5 mm intervals and numbered from 0 to 3 in the left hemisphere. Contact 0 is the deepest contact (green). (B) Frontal view of the left STN and SNr. (C) Anterolateral view of the left STN and SNr. (D) Superior view of the left STN and SNr. In (B-D), the STN and SNr were represented in transparency to show the location of the contacts and visualize the "laughter" contact 0 localized within the SNr. LV, lateral ventricle; TH, thalamus; TL, temporal lobe.
fneur-09-00341-g002.jpg
PMC5980955_02_fneur-09-00341-g002.jpg
F2
After matching, the anatomical location was determined contact by contact in a three-dimensional anatomical environment for each patient (Figures 1 and 2). The anatomical localization of contact 0 was 11.64 mm lateral, but 1.61 mm posterior and 6.10 mm inferior to MCP at the level of the lateral SNr (Figure 2).