Table 1 Patient characteristics (n = 14)
From: CT-guided iodine-125 seed permanent implantation for recurrent head and neck cancers
| Â | No. of patients | Percentage (%) |
|---|---|---|
Median age | 40(range,19-74) | Â |
Gender | Â | Â |
   Male | 9 | 64 |
   Female | 5 | 36 |
KPS | Â | Â |
   60 | 1 | 7 |
   70 | 4 | 29 |
   80 | 6 | 43 |
   90 | 2 | 14 |
   100 | 1 | 7 |
Primary tumor stage | Â | Â |
   Stage I | 1 | 7 |
   Stage II | 3 | 21 |
   Stage III | 4 | 29 |
   Stage IV | 5 | 36 |
   Unclear | 1 | 7 |
Primary tumor | Â | Â |
   Sinus paranasal | 5 | 36 |
   Nasopharynx carcinoma | 3 | 21 |
   Larynx | 2 | 14.3 |
   Hypopharyngeal carcinoma | 1 | 7 |
   Nasal cavity | 1 | 7 |
   Mandible | 1 | 7 |
   Infratemporal fossa | 1 | 7 |
Previous surgery | 8 | 57 |
Previous chemotherapy | 6 | 43 |
Previous radiotherapy | 12 | 86 |
   One | 7 | 50 |
   Two | 4 | 29 |
   Four | 1 | 7 |
Previous cumulative dose(Gy) | Â | Â |
   ≤50 Gy | 2 | 14 |
   50 ~ 100 Gy | 5 | 36 |
   >100 Gy | 5 | 36 |
   Median dose(Gy) | 70(range,50-250) |  |