Magnetic Resonance Imaging Combined With Second-look Ultrasonography in Predicting Pathologic Complete Response After Neoadjuvant Chemotherapy in Primary Breast Cancer Patients
| Autor: | Tomohiro Ochi, Seigo Nakamura, Naoki Hayashi, Koyu Suzuki, Hideko Yamauchi, Maki Namura, Hiroko Tsunoda |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
0301 basic medicine Cancer Research Neoplasm Residual Receptor ErbB-2 Breast surgery medicine.medical_treatment Estrogen receptor Breast Neoplasms Young Adult 03 medical and health sciences 0302 clinical medicine Breast cancer Antineoplastic Combined Chemotherapy Protocols Biopsy medicine Humans Prospective Studies Aged Aged 80 and over Chemotherapy medicine.diagnostic_test business.industry Remission Induction Magnetic resonance imaging Middle Aged Prognosis medicine.disease Magnetic Resonance Imaging Neoadjuvant Therapy 030104 developmental biology Receptors Estrogen Oncology Chemotherapy Adjuvant 030220 oncology & carcinogenesis Female Ultrasonography Mammary Ultrasonography Receptors Progesterone business Nuclear medicine Primary breast cancer Follow-Up Studies |
| Zdroj: | Clinical Breast Cancer. 19:71-77 |
| ISSN: | 1526-8209 |
| DOI: | 10.1016/j.clbc.2018.08.004 |
| Popis: | Background Magnetic resonance imaging (MRI) or ultrasonography (US) alone is limited in the ability to predict the pathologic complete response (pCR) accurately after neoadjuvant chemotherapy (NAC). The aim of the present study was to predict the pCR using MRI combined with second-look US in primary breast cancer patients. Materials and Methods A total of 1274 consecutive primary breast cancer patients who were examined by MRI and second-look US before and after NAC and had undergone breast-conserving surgery from 2004 to 2014 were included. The positive predictive value (PPV) of a clinical complete response (cCR) by MRI alone and MRI plus US was assessed. A CR was defined as no residual invasive carcinoma. The presence of a residual in situ component was also assessed (ypTis). Results Of the 1274 patients, 333 (26.1%) had a pCR (ypT0/is), and 102 (8.0%) had a residual in situ component (ypTis). A cCR was found in 247 patients (19.4%) using MRI alone and in 182 patients (14.3%) using MRI plus US. The PPV for a cCR using MRI alone was 79.4% and the PPV for MRI plus US was 86.8%. The PPV for a cCR by MRI plus US was the greatest at 98.1% in the estrogen receptor-negative (ER−)/human epidermal growth factor receptor-positive (HER2+) group (86.5% in the ER+/HER2+, 83.0% in the ER−/HER2−, and 64.7% in the ER+/HER2− groups). The PPV for residual in situ component was as low as 72.2%. Conclusion Our results have shown that MRI combined with second-look US in predicting for a pCR was useful compared with MRI alone, especially for ER−/HER2+. However, it was difficult to predict for the presence of a residual in situ component. Our ongoing prospective multi-institutional study has shown that adding vacuum-assisted biopsy to MRI plus second-look US is warranted to improve the prediction of pCR for omitting breast surgery. |
| Databáze: | OpenAIRE |
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