| 摘要 |
<p>A device for aiming a puncture instrument to an area of interest within a patient's body, such as a suspicious breast lesion, is disclosed. The device includes an imaging system (111, 112, 115) and a movable puncture instrument (120) which are isocentric with respect to a common isocenter. An initial calibration process can be performed without the patient to ensure that the puncture instrument (120) is aimed at the isocenter. This is accomplished by positioning the puncture instrument such that a tip thereof does not move when the puncture instrument and/or the imaging system change positions. The patient is then positioned so that the area of interest is located at the isocenter. Proper positioning is achieved when the area of interest does not move as viewed with the imaging equipment in two different positions. The invention allows for real time aiming of the puncture instrument and selection of a puncture instrument penetration path without the need for realignment, re-imaging of the patient, or repeating calculations.</p> |
