Abstract: A medical system includes an ultrasound probe, a treatment probe, and processor. Ultrasound probe and treatment probe are configured for insertion into an organ, to, respectively, image a volume of the organ, and introduce a treatment device therein. The probes respectively include first sensor configured to output first signals indicative of first positions of an ultrasound transducer array of the probe inside the organ, and second sensor configured to output second signals indicative of second positions of the treatment device inside the organ. The processor is configured to receive tags added to ultrasound images acquired using the ultrasound probe and mark tissue regions of the organ, register first positions of ultrasound transducer array and second positions of treatment device with one another, using registration, track relative position between treatment device and tagged tissue regions, and (iv) alert user when treatment device is within predefined proximity to tagged tissue region.

Abstract: In one exemplary mode, a medical system includes an ultrasound probe configured to captured ultrasonic images of at least part of a body part of a living subject, a display, and a processor configured to render to the display respective representations of respective electro-anatomical data subsets superimposed over respective ones of the ultrasonic images.

Abstract: In one embodiment, a medical system includes a catheter configured to be inserted into a cavity of a body of a living subject, and including an inflatable balloon comprising electrodes, the inflatable balloon being configured to press the electrodes against tissue of the cavity and at least partially block blood flow in the cavity, an ultrasound probe configured to provide velocity measurements of the blood flow in the cavity over time, a processor configured to assess a quality of contact of the electrodes with the tissue responsively to at least one of the velocity measurements of the blood flow in the cavity, and output an indication of the quality of contact to an output device, and a power supply configured to provide at least one electrical signal to the electrodes in order to ablate the tissue of the cavity.

Abstract: In one embodiment a system includes a ultrasound probe to capture 2D ultrasonic images of a body part of a living subject, a process to generate a 3D anatomical map of the body part, the 3D anatomical map and the 2D ultrasonic images being registered with a 3D coordinate space, add a 3D indication of an anatomical structure to the 3D anatomical map, render to a display the 3D anatomical map including the 3D indication of the anatomical structure, and render to the display a given one of the 2D ultrasonic images with a 2D indication of the anatomical structure on the given 2D ultrasonic image responsively to the 3D indication of the anatomical structure.

Abstract: In one embodiment, a medical system includes a catheter configured to be inserted into a chamber of a heart of a living subject, and including multiple electrodes configured to capture electrical activity from electrical activation signals propagating in tissue of the chamber, a display, and processing circuitry configured to automatically select bipolar signals to be captured into an electro-anatomical map from respective electrode pairs of the multiple electrodes responsively to an alignment of the respective electrode pairs with a direction of propagation of the electrical activation signals, and render the electro-anatomical map to the display.

Abstract: A system for electrophysiological measurement includes a probe having a distal end configured for insertion into a body cavity of a patient and including electrodes that are disposed along the distal end and are configured to contact tissue at multiple locations within the body cavity while an operator manipulates the probe. A processor is configured to acquire electrophysiological (EP) signals from the electrodes within the body cavity, to apply one or more filtering criteria to the EP signals in order to select a first set of the EP signals while rejecting a second set of the EP signals, to render an image to a display based on the EP signals in the first set, and to output to the operator an indication of a reason for the rejection of the EP signals in the second set.

Abstract: A method includes storing an anatomical map of at least a portion of a surface of a heart. Respective electrogram (EGM) signal amplitudes measured at respective positions on the surface of the heart are stored. Based on the on the EGM signal amplitudes, defined are: one or more first regions of the surface in which the EGM signal amplitudes are fractionated, and one or more second regions of the surface in which the EGM signal amplitudes are non-fractionated. A first surface representation is generated for the fractionated EGM signal amplitudes in the first regions. Propagation times are extracted from the non-fractionated EGM signal amplitudes in the second regions, and a second surface representation of the propagation times is derived. The first and second surface representations of the respective first and second regions of the surface are simultaneously presented, overlaid on the anatomical map.

Abstract: A method includes storing an anatomical map of at least a portion of a surface of a heart. Respective electrogram (EGM) signal amplitudes measured at respective positions on the surface of the heart are stored. Based on the on the EGM signal amplitudes, defined are: one or more first regions of the surface in which the EGM signal amplitudes are fractionated, and one or more second regions of the surface in which the EGM signal amplitudes are non-fractionated. A first surface representation is generated for the fractionated EGM signal amplitudes in the first regions. Propagation times are extracted from the non-fractionated EGM signal amplitudes in the second regions, and a second surface representation of the propagation times is derived. The first and second surface representations of the respective first and second regions of the surface are simultaneously presented, overlaid on the anatomical map.