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US 2015/0305646 A1Published application
Checking for perforation of the epicardium using magnetic resonance imaging
AssigneeBiosense Webster (Israel) Ltd.
InventorsYitzhack Schwartz, Assaf Govari, Vadim Gliner
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Abstract
Cardiac ablation is monitored to detect hemopericardium by iteratively acquiring magnetic resonance imaging (MRI) data that includes the pericardium, measuring the pericardium by analyzing the sets of MRI data, making a determination that a measurement of the pericardium in consecutive sets of MRI data differ, and responsively to the determination reporting a change in configuration of the pericardium.
Claims20
A method, comprising the steps of:
- inserting a probe into a heart of a living subject, the heart having a pericardium thereabout;
- navigating the probe into a contacting relationship with a target tissue of the heart;
- performing a medical procedure on the target tissue;
- iteratively acquiring magnetic resonance imaging (MRI) data that includes the pericardium, including a first set of MRI data and a second set of MRI data;
- measuring the pericardium by analyzing the sets of MRI data;
- making a determination that a measurement of the pericardium in the second set of MRI data differs from the measurement of the pericardium in the first set of MRI data;
- and
- responsively to the determination reporting a change in configuration of the pericardium, wherein the steps of iteratively acquiring, measuring, making a determination, and reporting are performed while performing the medical procedure.
5 more elements
A medical apparatus, comprising:
- a probe, adapted for insertion into a heart, the heart having a pericardium thereabout;
- a memory having programs stored therein;
- a display;
- and
- a processor linked to the display and being coupled to access the memory to execute the programs, the processor being connectable to a MRI apparatus, the programs comprising a MRI control module and an image analysis module, wherein the programs cause the processor to perform the steps of:
- iteratively acquiring magnetic resonance imaging (MRI) data that includes the pericardium, by invoking the MRI control module to communicate control signals to the MRI apparatus, the MRI data including a first set of MRI data and a second set of MRI data;
- measuring the pericardium by analyzing the sets of MRI data using the image analysis module;
- making a determination that a measurement of the pericardium in the second set of MRI data differs from the measurement of the pericardium in the first set of MRI data;
- and
- responsively to the determination reporting a change in configuration of the pericardium, wherein the steps of iteratively acquiring, measuring, making a determination, and reporting are performed while performing a medical procedure on a living subject.
7 more elements
Dependencies are inferred from the claim text.