Techniques for ultrasound-guided, percutaneous core-needle breast biopsy

[...]it is important to remember that the device's throw length (eg, 2.2 cm for the Monopty® device) and the course of the throw cannot be predicted with absolute precision. [...]before deploying an automated throw device, the operator must ensure that sensitive structures, such as the skin, the pectoralis muscle, and large vessels are not in the potential deployment path of the device. [...]the tip of the tissue marker device is very sharp, and the shaftis longer than most biopsy device needles. [...]the operator must take care in positioning and advancing the device to avoid entering the chest wall or other sensitive anatomic structures.