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01.04.2014 | Breast

Clinical application of bilateral high temporal and spatial resolution dynamic contrast-enhanced magnetic resonance imaging of the breast at 7 T

verfasst von: K. Pinker, W. Bogner, P. Baltzer, S. Trattnig, S. Gruber, O. Abeyakoon, M. Bernathova, O. Zaric, P. Dubsky, Z. Bago-Horvath, M. Weber, D. Leithner, T. H. Helbich

Erschienen in: European Radiology | Ausgabe 4/2014

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Abstract

Objective

The objective of our study was to evaluate the clinical application of bilateral high spatial and temporal resolution dynamic contrast-enhanced magnetic resonance imaging (HR DCE-MRI) of the breast at 7 T.

Methods

Following institutional review board approval 23 patients with a breast lesion (BIRADS 0, 4–5) were included in our prospective study. All patients underwent bilateral HR DCE-MRI of the breast at 7 T (spatial resolution of 0.7 mm³ voxel size, temporal resolution of 14 s). Two experienced readers (r1, r2) and one less experienced reader (r3) independently assessed lesions according to BI-RADS®. Image quality, lesion conspicuity and artefacts were graded from 1 to 5. Sensitivity, specificity and diagnostic accuracy were assessed using histopathology as the standard of reference.

Results

HR DCE-MRI at 7 T revealed 29 lesions in 23 patients (sensitivity 100 % (19/19); specificity of 90 % (9/10)) resulting in a diagnostic accuracy of 96.6 % (28/29) with an AUC of 0.95. Overall image quality was excellent in the majority of cases (27/29) and examinations were not hampered by artefacts. There was excellent inter-reader agreement for diagnosis and image quality parameters (κ = 0.89–1).

Conclusion

Bilateral HR DCE-MRI of the breast at 7 T is feasible with excellent image quality in clinical practice and allows accurate breast cancer diagnosis.

Key points

• Dynamic contrast-enhanced 7-T MRI is being developed in several centres.

• Bilateral high resolution DCE-MRI of the breast at 7 T is clinically applicable.

• 7-T HR DCE-MRI of the breast provides excellent image quality.

• 7-T HR DCE-MRI should detect breast cancer with high diagnostic accuracy.

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Titel: Clinical application of bilateral high temporal and spatial resolution dynamic contrast-enhanced magnetic resonance imaging of the breast at 7 T
verfasst von: K. Pinker
W. Bogner
P. Baltzer
S. Trattnig
S. Gruber
O. Abeyakoon
M. Bernathova
O. Zaric
P. Dubsky
Z. Bago-Horvath
M. Weber
D. Leithner
T. H. Helbich
Publikationsdatum: 01.04.2014
Verlag: Springer Berlin Heidelberg
Erschienen in: European Radiology / Ausgabe 4/2014
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-013-3075-8

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Clinical application of bilateral high temporal and spatial resolution dynamic contrast-enhanced magnetic resonance imaging of the breast at 7 T

Abstract

Objective

Methods

Results

Conclusion

Key points

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Abstract

Objective

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