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Erschienen in: European Radiology 5/2016

27.08.2015 | Breast

Quantitative DCE-MRI for prediction of pathological complete response following neoadjuvant treatment for locally advanced breast cancer: the impact of breast cancer subtypes on the diagnostic accuracy

verfasst von: Stylianos Drisis, Thierry Metens, Michael Ignatiadis, Konstantinos Stathopoulos, Shih-Li Chao, Marc Lemort

Erschienen in: European Radiology | Ausgabe 5/2016

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Abstract

Objectives

To assess whether DCE-MRI pharmacokinetic (PK) parameters obtained before and during chemotherapy can predict pathological complete response (pCR) differently for different breast cancer groups.

Methods

Eighty-four patients who received neoadjuvant chemotherapy for locally advanced breast cancer were retrospectively included. All patients underwent two DCE-MRI examinations, one before (EX1) and one during treatment (EX2). Tumours were classified into different breast cancer groups, namely triple negative (TNBC), HER2+ and ER+/HER2−, and compared with the whole population (WP). PK parameters Ktrans and Ve were extracted using a two-compartment Tofts model.

Results

At EX1, Ktrans predicted pCR for WP and TNBC. At EX2, maximum diameter (Dmax) predicted pCR for WP and ER+/HER2−. Both PK parameters predicted pCR in WP and TNBC and only Ktrans for the HER2+. pCR was predicted from relative difference (EX1 − EX2)/EX1 of Dmax and both PK parameters in the WP group and only for Ve in the TNBC group. No PK parameter could predict response for ER+/HER−. ROC comparison between WP and breast cancer groups showed higher but not statistically significant values for TNBC for the prediction of pCR

Conclusions

Quantitative DCE-MRI can better predict pCR after neoadjuvant treatment for TNBC but not for the ER+/HER2− group.

Key Points

DCE-MRI-derived pharmacokinetic parameters can predict response status of neoadjuvant chemotherapy treatment.
Ktrans can better predict pCR for the triple negative group.
No pharmacokinetic parameter could predict response for the ER+/HER2− group.
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Metadaten
Titel
Quantitative DCE-MRI for prediction of pathological complete response following neoadjuvant treatment for locally advanced breast cancer: the impact of breast cancer subtypes on the diagnostic accuracy
verfasst von
Stylianos Drisis
Thierry Metens
Michael Ignatiadis
Konstantinos Stathopoulos
Shih-Li Chao
Marc Lemort
Publikationsdatum
27.08.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
European Radiology / Ausgabe 5/2016
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-015-3948-0

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