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  • Zhu et al br SUPPLEMENTARY TABLE

    2020-08-12

    Zhu et al
    SUPPLEMENTARY TABLE 1. Comparison between endoscopists and CNN-CAD system
    Mean difference (%) Standard deviation (%) 95% CI
    All endoscopists vs CNN-CAD system
    Experienced endoscopists vs CNN-CAD system
    Junior endoscopists vs CNN-CAD
    Junior endoscopists vs experienced endoscopists
    CNN-CAD, Convolutional neural network computer-aided detection.
    Journal of Infection and Public Health xxx (2019) xxx–xxx
    Contents lists available at ScienceDirect
    Journal of Infection and Public Health
    Application of dynamic magnetic resonance imaging information technology in adjuvant chemotherapy for breast cancer
    Caixian Yang, Hongguang Zhao ∗ Department of Radiology, The People’s Hospital of Shanxi Province, Taiyuan 030012, Shanxi Province, China
    Article history:
    Keywords:
    Dynamic magnetic resonance imaging
    Magnetic resonance imaging
    Breast cancer
    Adjuvant chemotherapy 
    In order to study the application of dynamic magnetic resonance imaging information technology in breast cancer adjuvant chemotherapy, female patients diagnosed with breast cancer in The People’s Hospital of Shanxi Province are selected as research objects. Dynamic enhanced magnetic resonance imaging scans are performed to compare pathological changes by hematoxylin and eosin staining. The dynamic NMR morphological changes are used to evaluate the efficacy of neoadjuvant chemotherapy. Semi-quantitative analysis is used to compare the TIC types of lesions, and the changes in quantitative analysis parameters are used to evaluate the efficacy. The results show that 205640-90-0 in the dynamic magnetic res-onance imaging technique, the effective group (RECIST standard is CR and PR) has statistically significant changes in the quantitative analysis parameters Ktrans and Kep before and after neoadjuvant chemother-apy. Ktrans and Kep are used in neoadjuvant chemotherapy for breast cancer. The assessment is consistent with the morphological RECIST criteria assessment and can be used for qualitative diagnosis of breast tumors.
    © 2019 Published by Elsevier Limited on behalf of King Saud Bin Abdulaziz University for Health Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
    Introduction
    Magnetic Resonance Imaging (MRI) is an imaging technique that uses image reconstruction of a signal generated by resonance of a nucleus in a strong magnetic field [1]. Unlike other imag-ing techniques, magnetic resonance imaging has the advantages of high sensitivity, rich image information, high soft tissue resolu-tion, no ionizing radiation, no adverse effects on the body, and has great advantages for breast cancer diagnosis [2]. With the devel-opment of new magnetic resonance imaging technology, Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) tech-nology provides more relevant information for tumor diagnosis [3]. It is based on continuous scanning based on rapid imaging sequences, accurately reflecting the cellular information of tissue cell components, extracellular space, capillary permeability, micro-circulation and perfusion of lesions [4]. On the other hand, the characteristics of DCE-MRI and the enhancement process have a certain degree of correlation with tumor capillary characteristics. Therefore, DCE-MRI can accurately evaluate the capillary forma-
    ∗ Corresponding author at: Department of Radiology, The People’s Hospital of Shanxi Province, 29 Shuangta East Street, Taiyuan 030012, Shanxi Province, China.
    tion of living tumors, which provides an important basis for clinical diagnosis and treatment of breast cancer [5].
    The mammary gland of women is composed of skin, fibrous tis-sue, breast gland and fat. Breast cancer is a malignant tumor that occurs in the epithelial tissues of the breast gland [6]. Among breast cancer patients, women account for 99% and men only account for 1%. The breast is not an important organ for maintaining human life. In situ breast cancer is not fatal, but breast cancer cells are loosely connected and easy to fall off. Once the cancer cells fall off, they will spread to the whole body with blood or lymph through the cir-culatory system, which will form a transfer and endanger life [7,8]. At present, breast cancer has become the first malignant tumor that threatens women’s physical and mental health [9]. In the comprehensive treatment of breast cancer, preoperative neoadju-vant chemotherapy (NAC, preoperative chemotherapy) combined with surgical treatment is currently the most ideal treatment [10]. Neoadjuvant chemotherapy has the advantages of reducing clinical stage, reducing cell resistance, reducing tumors, and reducing the positive rate of axillary lymph nodes. It can significantly increase the success rate of breast-conserving, prolong survival and improve survival rate [11].