FIELD OF INVENTION

The present application relates the field of medical diagnosis and treatment, particularly as it pertains to atrial fibrillation. In particular, the present application relates to systems and methods for determining regions of interest to be ablated for treatment of cardiac arrhythmia, such as atrial fibrillation, and, more particularly, to systems and methods for determining atrial fibrillation regions of interest to be ablated using maps representing detected electrical activity of the heart and maps representing spatio-temporal manifestations of the conditions indicative of the electrical activity of the heart.

BACKGROUND

Medical personnel, such as ear, nose and throat (ENT) physicians and cardiologists, use medical tools for performing medical procedures within patient anatomy. Medical tools, such as catheters, may be used to detect electrical activity in patient anatomy (e.g., electro-cardiogram (ECG) signals of a heart) for generating maps (e.g., high resolution maps) of the anatomy (e.g., map of the heart).

For example, ECG signals of a heart are acquired (i.e., recorded for a period of time, such as 20 to 30 seconds) via a plurality of catheter electrodes placed at different areas of the heart. The acquired signals are monitored and used, along with location information indicating locations of the medical tool and the electrodes in a three dimensional (3D) space, to create the dynamic maps of the heart. Based on a visual assessment of the maps, a region of interest of the heart may be determined, which may include an area of the heart causing an irregular heart rhythm to be targeted for ablation.

SUMMARY

A method of reusing data is provided which improves processing performance of a medical display processing system. The method includes acquiring, over time via a plurality of electrodes, electrical signals, each signal acquired via one of the plurality of electrodes and indicating electrical activity at a location of a portion of patient anatomy in a three dimensional (3D) space. The method also includes filtering electrical signal data, corresponding to the electrical signals, according to a first plurality of filter parameter settings and generating first mapping information for displaying a map of the portion of patient anatomy and the filtered electrical signal data. The method also includes receiving an indication of a region of the portion of patient anatomy on the map and generating, second mapping information for displaying, at the region on the map, a portion of the electrical signal data previously filtered from display.

A medical display processing device which improves processing performance is provided which includes memory configured to store electrical signal data and a processing device. The processing device is configured to receive the electrical signal data, corresponding to electrical signals acquired over time via a plurality of electrodes, each signal indicating electrical activity at a location of a portion of patient anatomy in 3D space. The processing device is also configured to filter the electrical signal data according to a first plurality of filter parameter settings and generate first mapping information for displaying a map of the portion of patient anatomy and the filtered electrical signal data. The processing device is also configured to receive an indication of a region of the portion of patient anatomy on the map and generate, second mapping information for displaying, at the region on the map, a portion of the electrical signal data previously filtered from display.

A medical processing system which improves processing performance is provided which includes a plurality of electrodes each configured to acquire electrical signals over time, each signal indicating electrical activity at a location of a portion of patient anatomy in 3D space. The system also includes a display device configured to display a map of the portion of patient anatomy and electrical signal data corresponding to the electrical signals. The system also includes a processing device configured to receive the electrical signal data and filter the electrical signal data according to a first plurality of filter parameter settings. The processing device is also configured to generate first mapping information for displaying, on the display device, the map of the portion of patient anatomy and the filtered electrical signal data, receive an indication of a region of the portion of patient anatomy on the map and generate, second mapping information for displaying, on the display device at the region on the map, a portion of the electrical signal data previously filtered from the display device.

