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• Clinical Article •
Comparative assessment of MRI BI-RADS 4 breast lesions with Kaiser score and apparent diffusion coefficient value
REN Xiaomeng  LIU Xiaochun  DAI Tianzi  ZHANG Hui  ZHENG Guona  HAN Lina 

Cite this article as: Ren XM, Liu XC, Dai TZ, et al. Comparative assessment of MRI BI-RADS 4 breast lesions with Kaiser score and apparent diffusion coefficient value[J]. Chin J Magn Reson Imaging, 2022, 13(9): 25-29, 34. DOI:10.12015/issn.1674-8034.2022.09.005.


[Abstract] Objective To investigate the diagnostic performance of the Kaiser score and apparent diffusion coefficient (ADC) to Breast Imaging Reporting and Data System (BI-RADS) Category 4 lesions at dynamic contrast-enhanced MRI (DCE-MRI).Materials and Methods The cases who underwent breast MRI and were classified as BI-RADS category 4 with clear pathological findings in Hebei General Hospital from June 2020 to February 2022 were retrospectively analyzed. The measurement of ADC value was designated by experienced physicians to designate a region of interest (ROI) and measured. Using logistic regression combined Kaiser score and ADC value to obtain the predictor Kaiser+. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the diagnostic performance of Kaiser score, Kaiser+ and ADC. The area under the curve (AUC) values were calculated and compared by using the Delong test.Results The study involved 128 women with 165 lesions. Overall diagnostic performance for Kaiser score (AUC=0.882) was significantly higher than for ADC (AUC=0.582; P＜0.05). There were no significant differences in AUCs between Kaiser score and Kaiser+ (P=0.885). Compared with ADC value, the Kaiser score is independent of background parenchymal enhancement when making a lesion diagnosis.Conclusions For BI-RADS 4 breast lesions, the Kaiser score is superior to ADC mapping and may help to avoid unnecessary biopsies. However, the combination of both indicators did not significantly contribute to breast cancer diagnosis.
[Keywords] breast cancer；Kaiser score；magnetic resonance imaging；apparent diffusion coefficient

REN Xiaomeng1, 2   LIU Xiaochun2, 3   DAI Tianzi1, 2   ZHANG Hui2*   ZHENG Guona4   HAN Lina5  

1 Graduate School, Hebei Medical University, Shijiazhuang 050017, China

2 Department of Radiology, Hebei General Hospital, Shijiazhuang 050051, China

3 Graduate School, Hebei North University, Zhangjiakou 075000, China

4 Department of Pathology, Hebei General Hospital, Shijiazhuang 050051, China

5 Department of Neurology, Hebei General Hospital, Shijiazhuang 050051, China

*Zhang H, E-mail: wszzzhui@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS Hebei Province Talent Training Project (No. A201901017).
Received  2022-05-31
Accepted  2022-09-14
DOI: 10.12015/issn.1674-8034.2022.09.005
Cite this article as: Ren XM, Liu XC, Dai TZ, et al. Comparative assessment of MRI BI-RADS 4 breast lesions with Kaiser score and apparent diffusion coefficient value[J]. Chin J Magn Reson Imaging, 2022, 13(9): 25-29, 34. DOI:10.12015/issn.1674-8034.2022.09.005.

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