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Table 1 Patient and tumor characteristics

From: A comparative study based on deformable image registration of the target volumes for external-beam partial breast irradiation defined using preoperative prone magnetic resonance imaging and postoperative prone computed tomography imaging

Variables Values
Age, years
 Median 43
 Range 39–69
Tumor size
 ≥ 10 mm < 20 mm 10
 ≥ 20 mm < 30 mm 8
Breast side
 Left 7
 Right 11
Localization of tumor bed
 UOQ 11
 LOQ 1
 Central portion of breast 0
 UIQ 2
 LIQ 4
Tumor characteristics
 Ductal carcinoma in situ 1
 Invasive ductal carcinoma 15
 Invasive lobular carcinoma 1
 Cribriform carcinoma 2
  1. Abbreviations: UOQ upper outer quadrant, LOQ lower outer quadrant, UIQ upper inner quadrant, LIQ lower inner quadrant