Aims and objectives
One of the advantages of 3D ultrasound is the possibility to have the whole breast scanned by technicians with batch or remote reporting by a dedicated breast radiologist [1,2].
feedback on concurrent focal abnormalities (e.g.
palpable lesions) is lost.
We therefore aimed to develop skin markers for 3D ultrasound that can be used for marking focal abnormalities without disturbing the interpretation of the 3D ultrasound dataset.
Methods and materials
Marker production: Markers were moldedusing amold that was designed and 3D printed in a rubber-like material,
allowing for removal of the resulting markers. Spherical,
circular,anddisk-shaped variants were molded in different sizes (Figure 1).
The material usedfor the markerisEcoFlex-Gel® (Macungie,
Pennsylvania USA),which is a commercially availableRoom Temperature Curing (RTC)silicon.Thissilicon proved suitable for US imaging andcan also beusedasphantom material.
Production and application: Production complexity of the silicon markers is low.
Curing time allowed for effective degassing of the silicon.
The markers are safe and easily applied to the skin.
Adhesion is sufficient to prevent dislocation during the 3D ultrasound acquisition,
multiple sequential acquisitions did not dislocate the marker. Ultrasound compatibility: Markers are clearly visible at skin level,
presenting as small black circles in the coronal plane(Figure 3).
In thetransversal and...
easy producible RTC silicon markers can be used for lesion marking in 3D ultrasound without affecting image interpretability.
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