Functional outcome of surgery for XXXX directly adjacent to pyramidal tract depicted by diffusion-tensor based fiber tracking.

@entity11 @entity1 @entity51 @entity5
AIM: To investigate the outcome of @entity11 resection surgery and changes of pyramidal tract (PT) for @entity1 where PT is immediately adjacent to the @entity5 , which were revealed by diffusion tensor imaging (DTI) based fiber tracking (FT) technique. MATERIAL AND METHODS: 40 @entity1 enrolled. Preoperative and intraoperative tractography of the PT was performed before and after @entity11 resection. Motor function was recorded before surgery and 1 week, three to six months after surgery. Distances (D) between intraoperative tractography of the PT and the resection cavity were measured. RESULTS: 14 @entity1 had transient aggravated or newly @entity51 1 week after surgery. After 3 to 6 months follow up, only 3 (7.5%) @entity1 had @entity51 . In 12 (30%) @entity1 , the intraoperative PT tractogram adjoined the resection cavity after @entity5 removal (D=0). They all had transient aggravated @entity51 after surgery and 3 were permanent. In 19 @entity1 with preoperative @entity51 , 11 (57.90%) had zero D value. In other 21 @entity1 , 1 (4.76%) had zero D value. There was significant difference between these two ratio (p < 0.01). CONCLUSION: DTI based FT is helpful in protection for the PT during @entity11 surgery, even if the PT is directly adjacent to the @entity11 . @entity1 with preoperative @entity51 faced more risk of persistent aggravated deficits after surgery.
