The Added Value of Kaiser Score in Differentiation of Breast Lesions in Multiparametric Breast Magnetic Resonance Imaging | ||||
| Zagazig University Medical Journal | ||||
| Articles in Press, Accepted Manuscript, Available Online from 21 August 2025 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/zumj.2025.405359.4059 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Hanan Abdelhameed Esmail Hassan1; Aml Walid Hamdallah  2; Taghreed Mohamad Azmy Zaky3; Enas Mahmoud Hamed Hassan4
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| 1Assistant Professor of Radiodiagnosis, Faculty of Medicine, Zagazig University, Zagazig, Egypt. gazig University Egypt | ||||
| 2Radiodiagnosis resident at Zagazig university hospitals | ||||
| 3Professor of Radiodiagnosis, Faculty of Medicine, Zagazig University, Zagazig, Egypt. | ||||
| 4Assistant Professor of Radiodiagnosis, Faculty of Medicine, Zagazig University, Zagazig, Egypt. | ||||
| Abstract | ||||
| Background: Breast cancer is currently a leading cause of illness and death around the world. Breast magnetic resonance imaging (bMRI) has emerged as a critical tool for distinguishing between benign and malignant breast lesions. This study assesses Kaiser score's role in the differentiation of breast lesions in multiparametric breast magnetic resonance imaging (bMRI), and its effect on inter-reader agreement among radiologists of different experience levels. Methods: This prospective study included 30 female patients done at the Department of Radiodiagnosis at our institute, with suspicious or equivocal imaging findings on mammography &/or ultrasonography. Patients underwent bMRI as well as true-cut biopsy from the breast lesions. The MR images were interpreted and categorized according to both the BI-RADS classification & Kaiser score by three radiologists with varying levels of experience, and were compared with gold standard histopathology. Results: for 19 malignant lesions & 11 benign lesions, the sensitivity and specificity of the BI-RADS classification were 73.7% and 90.9%, respectively. In comparison, the Kaiser score showed higher sensitivity and variable specificity across readers: for reader 1, sensitivity and specificity were 94.7% and 81.8%; for reader 2, 89.5% and 100%; and for reader 3, 83.3% and 83.3%, respectively. Inter-reader agreement of Kaiser score was near perfect (κ = 0.722, p < .005). Conclusion: The Kaiser score achieves high diagnostic accuracy in comparison to MRI BI-RADS, with substantial inter-reader agreement. Its use, especially when combined with MRI BI-RADS, can greatly assist in diagnosing doubtful and suspicious breast lesions, particularly for younger radiologists. | ||||
| Keywords | ||||
| Keywords: Breast cancer; BI-RADS Scoring system; Multiparametric MR; Kaiser score; ADC value | ||||
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