Table A1.

List of the landmarks used by the DEVICE to extract the relevant anatomic information and provide feedback to the operator.

Landmarks	Description
$xy \mathrm{plane}$	Patient’s coronal plane
$O$	Nipple sensor
$T$	3D target (breast mass) center coordinates
$P$	3D probe head center point coordinates
$T^{\prime }$	Orthogonal projection of $T$ in the $xy \mathrm{plane}$
$P^{\prime }$	Orthogonal projection of $P$ in the $xy \mathrm{plane}$
$N$	12 o’clock clockwise face position