Abstract: A method includes, during arrhythmia occurrence, acquiring multiple sets of reference coronary sinus electrophysiological (CS-EP) signals with a first catheter in coronary sinus (CS) of a heart of a patient, while measuring multiple respective reference CS locations of the first catheter. One or more intra-cardiac electrophysiological (IC-EP) signals are acquired with a second catheter located in a cardiac chamber of the heart, while acquiring actual CS-EP signal with first catheter, and while measuring an actual CS location of first catheter. Using reference CS locations, reference CS-EP signal is identified whose reference CS location is nearest to actual CS location of the first catheter. A signal-stability measure between actual CS-EP signal and identified reference CS-EP signal is estimated.

Abstract: A system and method performed in association with medical equipment in a medical procedure are disclosed. The system and method include measuring at least one electrical signal in the medical procedure, rendering a depiction of the medical procedure on a display, representing the measured at least one electrical signal on the display in conjunction with the rendering of the medical procedure, recording the location of at least one piece of medical equipment during the medical procedure, processing the recorded location of at least one piece of medical equipment, depicting the value of signals measured via the at least one piece of medical equipment, and providing an output that correlates the processed recorded location of at least one piece of medical equipment with the depicted signals measured via the at least one piece of medical equipment at the processed recorded location by the at least one piece of medical equipment.

Abstract: Cardiac catheterization is conducted with a probe having a plurality of sensors. The heart is displayed as a first graphic image. Signals from the sensors are processed according to a predefined algorithm to generate respective outputs, A region on the first graphic image that is less than all of the first graphic image is selected according to locations of the sensors, and values derived from outputs of the sensors are displayed on the selected region as a second graphic image. Thereafter, the second graphic image is removed and replaced by an updated version.

Abstract: A system comprises a display and a processor. The processor is configured to display on the display in a graphical user interface (GUI), while a plurality of electrogram signals are acquired from a heart, a plurality of widgets corresponding to different respective electroanatomical maps generated from the electrogram signals, each of the electroanatomical maps being associated with a respective set of suitability criteria such that any one of the electrogram signals is used to generate the map only if the signal satisfies the set of suitability criteria. The processor is further configured to display in the GUI, in response to a user selecting any one of the widgets, a status of a most recently acquired one of the electrogram signals with respect to at least one criterion in the set of suitability criteria associated with the electroanatomical map to which the selected widget corresponds. Other embodiments are also described.

Abstract: Cardiac catheterization is conducted with a probe having a plurality of sensors. The heart is displayed as a first graphic image. Signals from the sensors are processed according to a predefined algorithm to generate respective outputs, A region on the first graphic image that is less than all of the first graphic image is selected according to locations of the sensors, and values derived from outputs of the sensors are displayed on the selected region as a second graphic image. Thereafter, the second graphic image is removed and replaced by an updated version.