Article Figures & Data
Figures
- Fig 1.
Algorithm for patient selection.
- Fig 2.
Graph showing the relationship between the ratio of nonenhanced lesions on postembolization MR imaging scans the degree of devascularization of external carotid artery feeders. The regression line obtained by applying simple regression is shown (y = 0.1437x + 29.994; R2 = .0162).
- Fig 3.
A, Pre-embolization Gd-DTPA-enhanced T1-weighted MR imaging scan showing a well-enhanced lesion in the right medial frontal area.
B, Three days after embolization, the enhanced MR imaging scan shows a heterogeneous nonenhanced lesion in the tumor.
C, Seven days postembolization, the nonenhanced lesion in the tumor was not remarkably changed.
- Fig 4.
Bar graph showing the relationship between the ratio of supply from the external carotid artery and tumor consistency at surgery.
- Fig 5.
Bar graph showing the relationship between the ratio of nonenhanced lesions on postembolization MR imaging and tumor consistency at surgery. *P < .01.
Tables
Summary of 203 meningioma patients who underwent preoperative embolization
Group 1 Group 2 (N = 75) (N = 128) Interval between embolization and surgery (mean) 1–7 days (2.1 days) 8–26 days (9.9 days) Total blood loss (mL) 897 987 NS During removal of tumor (mL) 534 424 NS Blood transfusion (U) 1.0–9.0 1.0–6.0 Mean (U) 2.9 2.1 NS Tumor consistency at surgery Hard 50 31 }P < .01 Moderately hard 20 75 Soft 5 22 Simpson grade 2.60 1.91 P < .01 Note:— NS indicates not significant
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