Preoperative Magnetic Resonance Imaging-Guided Localization of 131 Breast Lesions With Modified Embolization Coils

Siegmann, K. C.; Gorriz, Corinna; Xydeas, T.; Krainick-Strobel, U.; Sotlar, Karl; Claussen, Claus D.; Müller-Schimpfle, Markus

doi:10.1097/01.rli.0000163675.38490.6e

Cited by 16 publications

(9 citation statements)

References 33 publications

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“…A recently developed score for classification of breast lesions seen on breast MRI can be translated into BIRADS categories and allows objective lesion assessment (2, 3). Though BIRADS categories are significantly correlated with histology, prediction of malignancy remains variable (4).…”

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confidence: 99%

MR elastography of breast lesions: Understanding the solid/liquid duality can improve the specificity of contrast‐enhanced MR mammography

Sinkus

Siegmann

Xydeas

et al. 2007

Magnetic Resonance in Med

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confidence: 99%

MR elastography of breast lesions: Understanding the solid/liquid duality can improve the specificity of contrast‐enhanced MR mammography

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Siegmann

Xydeas

et al. 2007

Magnetic Resonance in Med

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“…Previous studies of MRI-localized biopsies have reported an incidence of cancer ranging from 15% to 61% [7,[21][22][23][24][25][26][27][28][29][30][31].…”

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confidence: 99%

MRI-directed, wire-localized breast excisions: incidence of malignancy and recommendations for pathologic evaluation

et al. 2007

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“…30 Recently, automated devices for MR-guided breast biopsies and preoperative localization have been developed and might simplify the interventional workflow in the near future. 31,32 …”

Section: Impact On Cad Systems and Mr Guided Biopsymentioning

confidence: 99%

Classification of Small Contrast Enhancing Breast Lesions in Dynamic Magnetic Resonance Imaging Using a Combination of Morphological Criteria and Dynamic Analysis Based on Unsupervised Vector-Quantization

Schlossbauer¹,

Leinsinger²,

Wismüller³

et al. 2008

Investigative Radiology

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Purpose-To evaluate the diagnostic value of breast magnetic resonance imaging (MRI) in small focal lesions using dynamic analysis based on unsupervised vector quantization in combination with a score for morphologic criteria.Materials and Methods-We examined 85 mammographically indetermintate lesions (BIRADS 3-4; 47 malignant, mean lesion size 1.2 cm; 38 benign, mean lesion size 1.1 cm). MRI was performed with a dynamic T1-weighted gradient echo sequence (1 precontrast and 5 postcontrast series). Lesions with an initial contrast enhancement ≥50% were selected with semiautomatic segmentation. For conventional dynamic analysis, we calculated the mean initial signal increase and postinitial course of all voxels included in a lesion. Secondly, all voxels within the lesions were assigned to 4 clusters using minimal-free-energy vector quantization. Dynamic and morphologic criteria were summarized in a diagnostic score and evaluated by receiver operating characteristic analysis.Results-In the present collection of small lesions, morphologic criteria [area under the curve (AUC) = 0.610] were inferior to dynamic criteria in the detection of breast cancer. Dynamic analysis with vector quantization (AUC = 0.760) presented slightly better results compared with standard dynamic analysis (AUC = 0.693). There was no benefit for combined morphologic and dynamic analysis.Conclusion-In small MR-mammographic lesions, dynamic analysis with vector quantization alone tends to result in a higher diagnostic accuracy compared with combined morphologic and dynamic analysis. Keywords breast cancer; breast MRI; vector quantizationContrast-enhanced MR imaging of the breast was reported to be a highly sensitive method for the detection of invasive breast cancer. 1,2 Different investigators described that certain dynamic signal intensity (SI) characteristics (rapid and intense contrast enhancement followed by a wash out phase) obtained in dynamic studies are a strong indicator for malignancy. 3

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Preoperative Magnetic Resonance Imaging-Guided Localization of 131 Breast Lesions With Modified Embolization Coils

Cited by 16 publications

References 33 publications

MR elastography of breast lesions: Understanding the solid/liquid duality can improve the specificity of contrast‐enhanced MR mammography

MR elastography of breast lesions: Understanding the solid/liquid duality can improve the specificity of contrast‐enhanced MR mammography

MRI-directed, wire-localized breast excisions: incidence of malignancy and recommendations for pathologic evaluation

Classification of Small Contrast Enhancing Breast Lesions in Dynamic Magnetic Resonance Imaging Using a Combination of Morphological Criteria and Dynamic Analysis Based on Unsupervised Vector-Quantization

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