How to Use the Kaiser Score as a Clinical Decision Rule for Diagnosis in Multiparametric Breast Mri

Dietzel, Matthias; Mazo, M. L.; Rozhkova, N.V.; Kharuzhyk, Siarhei; Kuplevatskaya, D.I.; Бусько, Е. А.; Hodikan, G.K.; Baltzer, Pascal; Radiology, Medical

doi:10.21569/2222-7415-2020-10-3-58-76

Cited by 4 publications

(5 citation statements)

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“…According to the instructions, Kaiser scores can be translated into BI-RADS categories as follows: 1-4 translated to BI-RADS 2/3 (≤2% likelihood of malignancy); 5-7 translated to BI-RADS 4 (>2% but <95% likelihood of malignancy); 8-11 translated to BI-RADS 5 (≥95% likelihood of malignancy) (8). The addition of three points for lesions scoring 1-4 and 5-7 enables most lesions corresponding to the BI-RADS classification to be upgraded without causing overdiagnosis.…”

Section: Discussionmentioning

confidence: 99%

“…The determination of KS was based on five diagnostic features (lesion type, shape of margins, root sign, enhancement kinetics, and presence of edema). The KS of lesions ranges from 1 to 11 (an increased Kaiser score reflects increasing probabilities of malignancy) (8). The KS* was obtained by combining the breast vasculature evaluation, and the diagnostic assessment was made based on the KS*.…”

Section: Image Interpretationmentioning

confidence: 99%

“…The Kaiser scoring system for breast MRI is an evidence-based clinical decision-making tool for the categorization of breast lesions (distinguishing benign from malignant lesions). The Kaiser score (KS), combining independent diagnostic BI-RADS lexicon criteria in a comprehensible flowchart, consists of 11 rating categories ranging from 1 to 11, with each category corresponding to a distinct likelihood of malignancy, which simplifies the classification and categorization of lesions (8). Previous studies also demonstrated the diagnostic value and reliability of KS in assessing breast lesions, which could achieve a better diagnostic efficiency than ACR-BI-RADS (9)(10)(11).…”

Section: Introductionmentioning

confidence: 99%

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Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Zhou

Liu

et al. 2023

Front. Oncol.

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ObjectivesThe Kaiser scoring system for breast magnetic resonance imaging is a clinical decision-making tool for diagnosing breast lesions. However, the Kaiser score (KS) did not include the evaluation of breast vascularity. Therefore, this study aimed to use KS combined with breast vascular assessment, defined as KS*, and investigate the effectiveness of KS* in differentiating benign from malignant breast lesions.MethodsThis retrospective study included 223 patients with suspicious breast lesions and pathologically verified results. The histopathological diagnostic criteria were according to the fifth edition of the WHO classification of breast tumors. The KS* was obtained after a joint evaluation combining the original KS and breast vasculature assessment. The receiver operating characteristic (ROC) curve was used for comparing differences in the diagnostic performance between KS* and KS, and the area under the receiver operating characteristic (AUC) was compared.ResultsThere were 119 (53.4%) benign and 104 (46.6%) malignant lesions in total. The overall sensitivity, specificity, and accuracy of increased ipsilateral breast vascularity were 69.2%, 76.5%, and 73.1%, respectively. The overall sensitivity, specificity, and accuracy of AVS were 82.7%, 76.5%, and 79.4%, respectively. For all lesions included the AUC of KS* was greater than that of KS (0.877 vs. 0.858, P = 0.016). The largest difference in AUC was observed in the non-mass subgroup (0.793 vs. 0.725, P = 0.029).ConclusionIpsilaterally increased breast vascularity and a positive AVS sign were significantly associated with malignancy. KS combined with breast vascular assessment can effectively improve the diagnostic ability of KS for breast lesions, especially for non-mass lesions.

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Section: Discussionmentioning

confidence: 99%

Section: Image Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Zhou

Liu

et al. 2023

Front. Oncol.

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“…The determination of KS was based on the ve diagnostic features (lesion type, shape of margins, root sign, enhancement kinetics, and presence of oedema). The KS of lesions ranges from 1 to 11 (increased Kaiser score re ects increasing probabilities of malignancy) [5]. The KS * was obtained combining the breast vasculature evaluation and the diagnostic assessment was made based on KS * .…”

Section: Image Interpretationmentioning

confidence: 99%

“…Kaiser scoring system for bMRI is a evidence-based clinical decision-making tool for the categorization of breast lesions (distinguishing benign from malignant lesions). The Kaiser score (KS), combining independent diagnostic BI-RADS lexicon criteria in a comprehensible owchart, consists of 11 rating categories ranging from 1 to 11, with each category corresponding to a distinct likelihood of malignancy, which simpli es the classi cation and categorization lesions [5]. Previous studies also demonstrated the diagnostic value and reliability of KS in assessing the breast lesions which could achieve a better diagnostic e ciency better than ACR-BI-RADS [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Zhou

Liu

et al. 2023

Preprint

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Objectives. Kaiser scoring system for breast magnetic resonance imaging (bMRI) is a clinical decision-making tool in diagnosing breast lesions. However, the Kaiser score (KS) did not include the evaluation of breast vascularity. Therefore, this study aimed to using of KS combined with breast vascular assessment，defined as KS*, and investigate the effectiveness of KS* in differentiating benign from malignant breast lesions. Methods. This retrospective study included 223 patients with suspicious breast lesions and pathologically verified results. The histopathological diagnostic criteria were according to the fifth edition of WHO classification of breast tumors. The KS* was obtained after joint evaluation combing the original KS and breast vasculature assessment. The receiver operating characteristic (ROC) curve was used for comparing differences in the diagnostic performance between KS* and KS, and the area under the receiver operating characteristic (AUC) was compared. Results. There were 119 (53.4%) benign and 104 (46.6%) malignant lesions in total. The overall sensitivity, specificity, and accuracy of increased ipsilateral breast vascularity were 69.2%, 76.5%, and 73.1%, respectively. The overall sensitivity, specificity, and accuracy of AVS were 82.7%, 76.5%, and 79.4%, respectively. For all lesions included, the AUC of KS* was greater than that of KS (0.877 vs. 0.858, P=0.016). The largest difference between AUC was observed in the non-mass subgroup (0.793 vs. 0.725, P=0.029). Conclusions. Ipsilateral increased breast vascularity and positive AVS sign were significantly associated with malignancy. KS combined with breast vascular assessment can effectively improve the diagnostic ability of KS for breast lesions, especially for non-mass lesions.

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Comparison of the BI-RADS and Kaiser scales for assessing the malignancy of mammary gland formations

Surovtsev,

Kapishnikov,

Pyshkina

et al. 2023

vmirvz

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Diagnosis of breast cancer remains a largely unsolved problem, despite the introduction of screening programs. Recently, magnetic resonance imaging has become more often used not only as a clarifying method, but also as a primary method for diagnosing breast cancer. Unified assessment systems have been developed as tools to assist in decision-making based on the results of radiation examination of the mammary glands: BI-RADS and Kaiser. The BI-RADS score provides a systematic approach to the description of breast images of various modalities. The Kaiser system, on the contrary, is highly specialized and is suitable for interpreting magnetic resonance imaging data only.Purpose. To determine the agreement of experts in assessing breast condition using the BI-RADS and Kaiser scales.Object and methods. We examined 40 patients (average age 45 years), we analyzed 87 neoplasms and areas of changes. The studies were performed on a magnetic resonance imaging scanner with a magnetic field of 1.5 T with appropriate scanning protocols, the results were assessed by independent experts with and without experience. Spearman's correlation analysis and Kendall's coefficient of concordance were used to analyze the results.Results. Spearman's correlation showed a relationship between BI-RADS scores and Kaiser in the inexperienced rater. The agreement between experts was higher when using the Kaiser system - 0.66, using the BI-RADS scale – 0.53.Conclusion. The lack of correlation between BI-RADS and Kaiser scores in an experienced examiner suggests a significant contribution of specific magnetic resonance features. The agreement between experts using the Kaiser system is higher than when using the BI-RADS scale.

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How to Use the Kaiser Score as a Clinical Decision Rule for Diagnosis in Multiparametric Breast Mri

Cited by 4 publications

References 0 publications

Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Diagnostic value of Kaiser score combined with breast vascular assessment from breast MRI for the characterization of breast lesions

Comparison of the BI-RADS and Kaiser scales for assessing the malignancy of mammary gland formations

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