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Erschienen in: European Radiology 10/2016

19.01.2016 | Breast

Additional diagnostic value of shear-wave elastography and color Doppler US for evaluation of breast non-mass lesions detected at B-mode US

verfasst von: Ji Soo Choi, Boo-Kyung Han, Eun Young Ko, Eun Sook Ko, Jung Hee Shin, Ga Ram Kim

Erschienen in: European Radiology | Ausgabe 10/2016

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Abstract

Objective

To evaluate the diagnostic value of shear-wave elastography (SWE) and colour Doppler ultrasound (US) for evaluation of breast non-mass lesions (NMLs) detected by B-mode US.

Methods

This retrospective study enrolled 116 NMLs (42 benign, 74 malignant). For each lesion, B-mode US, SWE and colour Doppler US were performed. Mean elasticity (E mean), maximum elasticity (E max) and vascularity were assessed by SWE and Doppler US. Diagnostic performances of B-mode US, SWE and Doppler US were calculated to differentiate benign and malignant NMLs.

Results

In benign NMLs, average E mean and E max were lower, and low vascularity (no flow or only one vessel flow) was more frequent (P < 0.001). When BI-RADS category 4a NMLs were downgraded to category 3 with ‘E mean of 85.1 kPa or less’ and/or ‘low vascularity’, specificities increased (69.0–90.5 %; P < 0.001), without significant loss in sensitivities (97.3–100 %). When these 4a NMLs were downgraded by the combination of SWE and Doppler US, all downgraded NMLs (59.3 %, 19/32) were confirmed as benign.

Conclusions

Addition of SWE and colour Doppler US to B-mode US improved diagnostic performances in differentiating benign and malignant NMLs. This study suggests that the combination of SWE and colour Doppler may help patients with BI-RADS category 4a NMLs avoid unnecessary biopsies.

Key Points

B-mode US features of malignant and benign NMLs may overlap.
SWE and colour Doppler provides useful information about breast NMLs.
SWE and colour Doppler may decrease unnecessary biopsies of breast NMLs.
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Metadaten
Titel
Additional diagnostic value of shear-wave elastography and color Doppler US for evaluation of breast non-mass lesions detected at B-mode US
verfasst von
Ji Soo Choi
Boo-Kyung Han
Eun Young Ko
Eun Sook Ko
Jung Hee Shin
Ga Ram Kim
Publikationsdatum
19.01.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
European Radiology / Ausgabe 10/2016
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-015-4201-6

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