Review Article

Intraoperative Radiotherapy for Breast Cancer: The Lasting Effects of a Fleeting Treatment

Table 2

Selected series comparing the radiographic changes that follow breast intraoperative radiotherapy and whole breast external beam radiotherapy.

SeriesPatientsYearRT methodIORT techniqueImagingOutcome time point (months)Fat necrosis (%)Seroma (%)Fibrosis (%)Calcs. (%)Edema (%)

Veronesi et al. [7]6512013IORT aloneElectronsMMG and US 7015NRNRNRNR
EBRT7NRNRNRNR
Della Sala et al. [43]902006IORT aloneElectronsMMG and US6, 12, 24 11, 42, 4431, 42, 36NR2, 18, 2050, 7, 0
EBRT6, 12, 24 7, 4, 011, 4, 0NR2, 2, 725, 2, 0
Carvalho et al. [44]602011IORT aloneElectronsMMG12, 24 20, 33NR43, 47NR, 6037, 27
EBRT12, 24 7, 13NR37, 23NR, 4757, 40
Wasser et al. [45]542007IORT + EBRTkV photonsMMG and US245233932289
EBRT2415493796
Sautter-Bihl et al. [26]532010IORT + EBRTElectronsMMGNR50NR95NR75
EBRTNR18NR88NR91
Engel et al. [46]482013IORT ± EBRTkV photonsMMG5256198563NR
EBRT522409519NR

RT: radiotherapy; IORT: intraoperative radiotherapy; calcs.: calcifications; EBRT: external beam radiotherapy; MMG: mammogram; US: ultrasound; NR: not reported; kV: kilovoltage.