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Παρασκευή 17 Φεβρουαρίου 2017

Imaging performance in guiding response to neoadjuvant therapy according to breast cancer subtypes: A systematic literature review

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Publication date: Available online 17 February 2017
Source:Critical Reviews in Oncology/Hematology
Author(s): Melanie A. Lindenberg, Anna Miquel-Cases, Valesca P. Retèl, Gabe S. Sonke, Jelle Wesseling, Marcel P.M. Stokkel, Wim H. van Harten
Monitoring therapeutic response to neoadjuvant chemotherapy(NAC) is likely to improve NAC effectiveness in breast cancer(BC). Imaging performance seems to vary per tumour subtype(by ER and HER2 status), therefore we performed a systematic review on subtype specific imaging performance in monitoring NAC in BC.Studies examining imaging performance in predicting pathologic complete response(pCR) during NAC in BC subtypes were selected. Per study, negative- and positive predictive value, sensitivity(se) and specificity(sp), AUC and accuracy were derived.Fifteen/106 articles were included. Inter-study variability was revealed in: monitoring interval, response and pCR definitions. In ER-positive/HER2-negative BC, 18F-FDG-PET/CT showed se/sp of 38%-89%/74%-100%, MRI showed se/sp of 35%-37%/87%-89%. In triple negative BC, 18F-FDG-PET/CT showed se/sp of 0%-79%/95%-100%. 18F-FDG-PET/CT showed in ER-positive/HER2-positive BC se/sp of 59%/80% and in ER-negative/HER2-positive 27%/88%.Evidence on imaging performance in monitoring NAC according BC subtypes is lacking. Consensus should be reached in: definitions of pCR, response and monitoring interval before starting well-designed studies.



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