ULTRASOUND BASED FREEHAND INVASIVE DEVICE POSITIONING SYSTEM AND METHOD

In one embodiment, an interventional guidance method includes generating an ultrasound image of a subject anatomy of interest. The method also includes superimposing on the ultrasound image a visual indication of at least one of projection of a position of an interventional device, trajectory of the interventional device, and a location at which the interventional device will intercept an ultrasound imaging plane. The interventional guidance method also includes dynamically altering an aspect of the superimposed visual indication during a interventional procedure. The dynamic altering includes altering a dynamic indication of a trajectory of the interventional instrument transverse to the imaging plane or an interception location of the trajectory of the interventional instrument with the imaging plane.