Summary of demographic data of patients with AVM, posttherapeutic follow-up period, and adverse effects
| Case No./Age/Sex | Clinical Manifestation of AVM | Time Interval* | Location | Grade† | Type of Perfusion Disturbance | Follow-up (mo)/Result of Radiosurgery/Degree of RIE (duration in mo) | |
|---|---|---|---|---|---|---|---|
| rCBV | rCBF | ||||||
| 1/49/M | H | 21 mo | Right P | II | 1 | 1 | 7, 16, 25/SR/mild (16) |
| 2/31/F | H, S | 15 y | Left FP | IV | 1, 2 | 1, 3 | 7, 13, 18, 25/NN/severe (12–24) |
| 3/40/M | Proptosis | 3 mo | Left FP | II | 2 | 2 | 6, 12, 19, 24/NN/moderate (12–24) |
| 4/33/M | Proptosis | 3 mo | Left T | III | 1, 2 | 1, 2 | 7, 14/PR/mild (14) |
| 5/35/M | Headache | 10 y | Right PO | III | 1 | 1 | 6, 12, 21/PR/none |
| 6/20/F | S | 2 mo | Left F | II | 1 | 1 | 6/PR/mild (6) |
| 7/17/M | H | 5 mo | Left T | IV | 1 | 1, 2 | 6, 12, 18/PR/mild (12–18) |
| 8/29/F | S | 2 mo | Left FP | III | 1, 3 | 1, 3 | 5, 11, 18, 24/SR/moderate (11–24) |
| 9/29/M | S | 8 mo | Left T | III | 2 | 2 | 6, 12/PR/mild (12) |
| 10/46/M | H, S | 3 mo | Left P | III | 2 | 2 | 6, 13/PR/severe (13) |
| 11/18/M | S | 12 mo | Right FP | III | 1 | 1 | 6, 13, 19/SR/moderate (13) |
| 12/36/M | S | 3 mo | Right P | III | 2 | 2 | 6, 14/PR/moderate (14) |
| 13/37/F | S | 5 mo | Left F | II | 2 | 2 | 6, 14/SR/none |
| 14/37/F | S | 2 mo | Left FT | III | 2 | 2 | 6, 16/PR/none |
| 15/35/F | Headache | 10 y | Right PO | V | 1 | 1 | 7, 13/PR/mild (13) |
| 16/43/M | S | 4 mo | Right PO | V | 3 | 3 | 13/PR/moderate (13) |
| 17/21/F | Headache | 3 mo | Right FP | III | 2 | 2 | 6, 11/PR/mild (11) |
| 18/20/M | S | 3 mo | Left T | IV | 2 | 2 | 6/PR/mild (6) |
| 19/45/M | H, S | 4 mo | Left PO | III | 2 | 2 | 7/PR/none |
Note.—H indicates hemorrhage; S, seizures; P, parietal; T, temporal; F, frontal; O, occipital; RIE, radiation-induced edema; NN, no residual nidus seen on MR image; SR, small remnant of nidus with prominent draining veins; PR, partial regression (AVM becomes smaller than the initial size).
* Interval between presentation and treatment.
† Spetzler-Martin AVM grading system (11).