Table 1.
Mean tumor vascularity scores (MTVS) among 49 cervical spinal tumors (in 47 patients) who underwent preoperative angiography at our institution (2002–2012).
| Low vascularity (MTVS < 1.0) |
Medium vascularity (MTVS, 1.0–1.9) |
High vascularity (MTVS ≥ 2.0) |
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|---|---|---|---|---|---|---|---|---|
| Mean tumor vascularity score | Histology | Number of tumors (N = 8) | Mean tumor vascularity score | Histology | Number of tumors (N = 17) | Mean tumor vascularity score | Histology | Number of tumors (N = 24) |
| 0.5 | Chondrosarcoma | 2 | 1.6 | Thyroid carcinoma | 7 | 3.0 | Giant cell tumor | 1 |
| 0.5 | Leiomyosarcoma | 2 | 1.3 | Meningioma | 3 | 3.0 | Plasmacytoma | 1 |
| 0.0 | Aneurysmal bone cyst | 1 | 1.0 | Adrenal carcinoma | 1 | 2.7 | Hemangiopericytoma | 3 |
| 0.0 | Fibrous dysplasia | 1 | 1.0 | Embryonal rhabdomyosarcoma | 1 | 2.1 | Renal cell carcinoma | 16 |
| 0.0 | Schwannoma | 1 | 1.0 | Hepatocellular carcinoma | 1 | 2.0 | Chordoma | 1 |
| 0.0 | Squamous cell carcinoma | 1 | 1.0 | Laryngeal spindle cell carcinoma | 1 | 2.0 | Hemangioma | 1 |
| 1.0 | Lung carcinoma (mixed small-cell/ non-small-cell) | 1 | 2.0 | Synovial sarcoma | 1 | |||
| 1.0 | Neurofibroma | 1 | ||||||
| 1.0 | Osteochondroma | 1 | ||||||
Mean tumor vascularity scores (MTVS) were calculated by averaging the individual vascularity scores of each tumor. Individual tumor vascularity scores were calculated as the following: 0 = tumor blush (vascularity) equal to the normal adjacent vertebral body; 1 = tumor blush slightly more prominent than the normal vertebral body blush; 2 = considerable tumor blush without arteriovenous shunting; and 3 = intense tumor blush with arteriovenous shunting.