Apparatus and method for aligning a light pointer with a medical interventional device trajectory

A method for aligning a light pointer with a predetermined medical interventional device trajectory, the method comprising the steps of:

• attaching a pointing member to an output end of the light pointer to form a movable pointing light device, the pointing member including two or more radio-opaque members, which when imaged, are capable of being recognized in a live projection image;
• radiation imaging said two or more radio-opaque members of the pointing member to create a live projection image of said two or more radio-opaque members and patient internal anatomy in the live projection image;
• projecting at least first and second points onto the live projection image, the first point being at or above a location where a medical interventional device enters the patient, the first and second points lying on the predetermined medical interventional device trajectory;
• and
• enabling moving the pointing light device until the live projection image indicates said two or more radio-opaque members of the pointing member are aligned with corresponding ones of the projected first and second points in the live projection image.