Clinical Study
Comprehensive Evaluation of Personal, Clinical, and Radiation Dosimetric Parameters for Acute Skin Reaction during Whole Breast Radiotherapy
Table 1
Patient characteristics.
| | Parameters | Median (range) or : |
| | Age (years) | 47 (28–70) | | Laterality (right : left) | 67 : 58 | | Body mass index (kg/m2) | 23.4 (17.8–37.9) | | T-stage (Tis, T0 : T2) | 91 : 34 | | N-stage (N0 : N1) | 106 : 19 | | Method of axillary dissection (no, SLND† : ALND‡) | 89 : 36 | | Chemotherapy (no : yes) | 47 : 78 | | Hormonal therapy (no : yes) | 32 : 93 | | Time interval from surgery to radiotherapy (days) | 111 (26–219) | | Period of whole breast irradiation (days) | 36 (33–46) | | Breast volume (mL) | | | Planning target volume | 499 (179–1444) | | | 351 (154–909) | | | 708 (310–1732) | | | 882 (401–2184) | | | 1050 (494–2547) | | | 1319 (653–2973) | | Breast height (cm) | 3.4 (1.6–6.5) | | Breast separation (cm) | 19.8 (15.1–26.7) | | Calculated dose/prescribed dose (%) | | | Axilla | 92.4 (71.2–99.3) | | Inferior fold | 95.8 (80.8–101.5) | | Inner half | 76.2 (51.9–89.1) | | -field size (cm) | 17.5 (15.5–20.5) | | Distance from distal humerus head to upper border (cm) | 1.3 (0–4.3) | | Ratio of lateral to medial separation on upper border | 1.62 (1.06–2.31) |
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SLND: sentinel lymph node dissection; ‡ALND: axillary lymph node dissection; : a covered volume by the % of prescribed dose.
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