Abstract: Methods for ablating body tissue include providing an ablation device having a single ultrasound transducer; positioning the ultrasound transducer in proximity to a body tissue; controlling the ultrasound transducer to emit an ultrasound beam; and collecting amplitude mode (A-mode) ultrasound information along a sensing pattern traversed by the ultrasound beam. A 3D anatomical reference map of the body tissue is created from the A-mode ultrasound information. A graphical user interface is generated and shown on a display, wherein the graphical user interface comprises the 3D anatomical reference map and a window showing data. The data includes a distance between the ultrasound transducer and a surface of the body tissue. The method also includes identifying a target tissue on the 3D anatomical reference map; ablating the target tissue with the ultrasound transducer to create a lesion; and monitoring a lesion depth in real-time during the ablating, using the A-mode ultrasound information.

Abstract: Systems and methods for a graphical user interface for an ablation procedure include a display, a controller in electronic communication with the display, a catheter coupled to the controller, and a graphical user interface generated by the controller and shown on the display. The catheter has a distal tip comprising an ultrasound transducer. The ultrasound transducer is configured to emit an ultrasound beam. The graphical user interface includes a three-dimensional anatomical reference map of a chamber of body tissue to be ablated, where a lesion path is superimposed on the anatomical reference map; a catheter position relative to the chamber; and a window showing data. The data includes at least one of a) a distance between the ultrasound transducer and a surface of the body tissue, b) a dosing plan, c) a tissue thickness, and d) a tissue property.

Abstract: Systems and methods for a graphical user interface for an ablation procedure include a display, a controller in electronic communication with the display, a catheter coupled to the controller, and a graphical user interface generated by the controller and shown on the display. The catheter has a distal tip comprising an ultrasound transducer. The ultrasound transducer is configured to emit an ultrasound beam. The graphical user interface includes a three-dimensional anatomical reference map of a chamber of body tissue to be ablated, where a lesion path is superimposed on the anatomical reference map; a catheter position relative to the chamber; and a window showing data. The data includes at least one of a) a distance between the ultrasound transducer and a surface of the body tissue, b) a dosing plan, c) a tissue thickness, and d) a tissue property.

Abstract: A method of mapping tissue includes sensing a first region and a second region of a chamber of body tissue. The sensing includes moving an ultrasound transducer of a catheter over a surface of the region along a sensing pattern, and using the ultrasound transducer to gather a set of echo-anatomical data in an amplitude mode at a plurality of points along the sensing pattern. The set of echo-anatomical data comprises distances between the ultrasound transducer and the surface at the plurality of points. A three-dimensional surface map is generated using the set of echo-anatomical data from each region. The surface maps of the regions are combined to form a combined surface map. Methods also include using a set of echo-anatomical data to generate a three-dimensional surface map of a region, from a detected border of the body tissue and detected motion phases of the region.