Early Prediction of Response to Neoadjuvant Chemotherapy Using Dynamic Contrast-Enhanced MRI and Ultrasound in Breast Cancer
Korean Journal of Radiology
; : 682-691, 2018.
Article
在 En
| WPRIM
| ID: wpr-716267
Responsible library:
WPRO
ABSTRACT
OBJECTIVE:
To determine the diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and DCE ultrasound (DCE-US) for predicting response to neoadjuvant chemotherapy (NAC) in breast cancer patients. MATERIALS ANDMETHODS:
This Institutional Review Board-approved prospective study was performed between 2014 and 2016. Thirty-nine women with breast cancer underwent DCE-US and DCE-MRI before the NAC, follow-up DCE-US after the first cycle of NAC, and follow-up DCE-MRI after the second cycle of NAC. DCE-MRI parameters (transfer constant [Ktrans], reverse constant [kep], and leakage space [Ve]) were assessed with histograms. From DCE-US, peak-enhancement, the area under the curve, wash-in rate, wash-out rate, time to peak, and rise time (RT) were obtained. After surgery, all the imaging parameters and their changes were compared with histopathologic response using the Miller-Payne Grading (MPG) system. Data from minor and good responders were compared using Wilcoxon rank sum test, chi-square test, or Fisher's exact test. Receiver operating characteristic curve analysis was used for assessing diagnostic performance to predict good response.RESULTS:
Twelve patients (30.8%) showed a good response (MPG 4 or 5) and 27 (69.2%) showed a minor response (MPG 1–3). The mean, 25th, 50th, and 75th percentiles of Ktrans and Kep of post-NAC DCE-MRI differed between the two groups. These parameters showed fair to good diagnostic performance for the prediction of response to NAC (AUC 0.76–0.81, p ≤ 0.007). Among DCE-US parameters, the percentage change in RT showed fair prediction (AUC 0.71, p = 0.023).CONCLUSION:
Quantitative analysis of DCE-MRI and DCE-US was helpful for early prediction of response to NAC.Key words
全文:
1
索引:
WPRIM
主要主题:
Breast
/
Breast Neoplasms
/
Magnetic Resonance Imaging
/
Prospective Studies
/
ROC Curve
/
Follow-Up Studies
/
Ultrasonography
/
Drug Therapy
研究类型:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
限制:
Female
/
Humans
语言:
En
期刊:
Korean Journal of Radiology
年:
2018
类型:
Article