Table 3 Association between tumor grade and each of surgical excision and outcome (total n = 20)
From: Surgical planning in patients with brain glioma using diffusion tensor MR imaging and tractography
Parameter | High | Low | Total | pa | |||
|---|---|---|---|---|---|---|---|
No | % | No | % | No | % | ||
Surgical excision | |||||||
 Subtotal | 11 | 78.6 | 1 | 16.7 | 12 | 60.0 | 0.018* |
 Total | 3 | 21.4 | 5 | 83.3 | 8 | 40.0 |  |
Postoperative outcome | |||||||
 Deteriorated cerebral function | 3 | 21.4 | 0 | 0.0 | 3 | 15.0 | 0.521 |
 Deteriorated motor power | 2 | 14.3 | 0 | 0.0 | 2 | 10.0 | 1.000 |
 Deteriorated visual complaint | 1 | 7.1 | 0 | 0.0 | 1 | 5.0 | 1.000 |
 Headache | 2 | 14.3 | 1 | 16.7 | 3 | 15.0 | 1.000 |
 Improved motor power | 5 | 35.7 | 2 | 33.3 | 7 | 35.0 | 1.000 |
Pre- and postoperative imaging | |||||||
 Preoperative pattern I (not affected) | 0 | 0.0 | 2 | 33.3 | 2 | 10.0 | 0.079 |
  Normalized position and anisotropy | 0 | 0.0 | 2 | 33.3 | 2 | 10.0 |  |
 Preoperative pattern II (displacement) | 10 | 71.4 | 5 | 83.3 | 15 | 75.0 | 1.000 |
 Postoperative |  |  |  |  |  |  |  |
  Normalized position and anisotropy | 7 | 70.0 | 5 | 100.0 | 12 | 80.0 | 0.505 |
  Normalized position and partial FA improvement | 3 | 30.0 | 0 | 0.0 | 3 | 20.0 |  |
 Preoperative pattern III (edematous) | 7 | 50.0 | 4 | 66.7 | 11 | 55.0 | 0.642 |
 Postoperative |  |  |  |  |  |  |  |
  Normalized position and anisotropy | 4 | 57.1 | 3 | 75.0 | 7 | 63.6 | 1.000 |
  Normalized position and partial FA improvement | 2 | 28.6 | 1 | 25.0 | 3 | 27.3 |  |
  No fibers position or FA improvement | 1 | 14.3 | 0 | 0.0 | 1 | 0.8 |  |
 Preoperative pattern IV (infiltration) | 11 | 78.6 | 1 | 16.7 | 12 | 60.0 | 0.018* |
 Postoperative |  |  |  |  |  |  |  |
  Normalized position and anisotropy | 5 | 45.5 | 1 | 100.0 | 6 | 50.0 | 1.000 |
  Normalized position and partial FA improvement | 4 | 36.4 | 0 | 0.0 | 4 | 33.3 |  |
  No fibers position or FA improvement | 2 | 18.1 | 0 | 0.0 | 2 | 16.7 |  |
 Preoperative pattern V (destruction) | 4 | 28.6 | 0 | 0.0 | 4 | 20.0 | 0.267 |
  No identifiable fiber tracts on FA or directional color maps | 4 | 100.0 | 0 | 0.0 | 4 | 100.0 |  |