Research Article
Correlation Analysis between Retention of Gd-DTPA in the Cystic Area of Brain Metastasis and MRI Signs
Table 3
Comparison of classification variables for the BM cystic area between the two groups (n (%)).
| | Relevant factors | Experimental group (n = 54) | Control group (n = 69) | χ2 | P |
| | Primary lesion type | | | 3.832 | 0.147 | | Small cell lung cancer | 19 (35.2) | 31 (44.9) | | Nonsmall cell lung cancer | 31 (57.4) | 28 (40.6) | | Nonlung cancer | 4 (7.4) | 10 (14.5) |
| | Tumor size | | | 15.584 | <0.001 | | Grade I | 2 (3.7)a | 22 (31.9) | | Grade II | 34 (63.0)b | 33 (47.8) | | Grade III | 18 (33.3)b | 14 (20.3) |
| | Position | | | 0.067 | 0.796 | | Internal carotid artery blood supply area | 31 (57.4) | 38 (55.1) | | Vertebrobasilar artery blood supply area | 23 (42.6) | 31 (44.9) |
| | Capsule wall thicknesses | | | 6.071 | 0.014 | | Thin | 20 (37.0) | 41 (59.4) | | Thick | 34 (63.0) | 28 (40.6) |
| | Cystic wall morphology | | | 0.238 | 0.888 | | Smooth type | 16 (29.6) | 23 (33.3) | | Nonsmooth type | 14 (25.9) | 18 (26.1) | | Nodular type | 24 (44.5) | 28 (40.6) |
| | Degree of peritumoral edema | | | 3.922 | 0.252 | | No edema | 2 (3.7) | 0 (0) | | Mild | 16 (29.6) | 23 (33.3) | | Moderate | 20 (37.1) | 19 (27.6) | | Severe | 16 (29.6) | 27 (39.1) |
| | Renal function | | | 2.510 | 0.113 | | Normal | 41 (75.9) | 60 (86.9) | | Mild impairment | 13 (24.1) | 9 (13.1) |
|
|
Note. Compared to the control group, a, b; Fisher’s exact probability method. |
