Quantitative apparent diffusion coefficient measurement obtained by 3.0Tesla MRI as a potential noninvasive marker of tumor aggressiveness in breast cancer
| Autor: | Sunitha B. Thakur, Elizabeth A. Morris, Joseph O. Deasy, Elizabeth J. Sutton, Lucas Gennaro, Manuela Durando, Gene Y. Cho, Merlin M. Gnanasigamani, Sujata Patil, Dilip Giri |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Pathology medicine.medical_specialty Lymphovascular invasion Estrogen receptor Breast Neoplasms Risk Assessment Sensitivity and Specificity Article 030218 nuclear medicine & medical imaging Lesion 03 medical and health sciences 0302 clinical medicine Breast cancer Progesterone receptor Humans Effective diffusion coefficient Medicine Radiology Nuclear Medicine and imaging Lymph node Aged Retrospective Studies Aged 80 and over business.industry Carcinoma Ductal Breast Reproducibility of Results General Medicine Middle Aged Prognosis medicine.disease body regions Diffusion Magnetic Resonance Imaging medicine.anatomical_structure Receptors Estrogen Lymphatic Metastasis 030220 oncology & carcinogenesis Female medicine.symptom Receptors Progesterone Breast carcinoma business |
| Zdroj: | European Journal of Radiology. 85:1651-1658 |
| ISSN: | 0720-048X |
| DOI: | 10.1016/j.ejrad.2016.06.019 |
| Popis: | To assess the association between apparent diffusion coefficient (ADC), and histological prognostic parameters in malignant breast lesions. The ability of ADC to identify lesions with the presence of Lymphovascular invasion (LVI) in breast carcinoma was also examined.This HIPAA-compliant retrospective study consisted of 212 consecutive patients with known cancers who underwent 3.0T MRI between January 2011 and 2013. In this study, a total of 126 malignant lesions in 114 women, who had undergone DWI (b-values of 0 and 1000s/mm(2)) in addition to diagnostic MRI, were included. Patients with less than 0.8cm lesions, or those who underwent neoadjuvant chemotherapy or suboptimal DW images were excluded. Classical prognostic factors [lesion size, histopathological type and grade, lymph node (LN) status and lymphovascular invasion (LVI)], molecular prognostic markers [estrogen receptor (ER), progesterone receptor (PR) and human epidermal grow factor receptor 2 (HER2)] were reviewed and recorded. A region of interest (ROI) was drawn within the lesions to measure ADC values. Statistical analyses were performed by the Wilcoxon rank sum test (statistical significance at P0.05). Adjusted p values from multiple comparison analysis were also calculated.This study demonstrates an inverse correlation between ADC and LVI in malignant lesions and the ability of ADC to identify aggressiveness in lesions with positive LVI. Tumor size, grade, ER, PR, HER2 and lymph node status did not impact tumor ADC value. However, tumors with LVI showed significantly lower ADC values when compared to tumors without LVI, regardless of the enhancement type, histological grade, histological type, and LN status.Our study shows that ADC could be a potential clinical adjunct in the evaluation of prognostic factors related to malignant lesion aggressiveness such as LVI. |
| Databáze: | OpenAIRE |
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