NAVIGATION SYSTEM FOR CARDIAC THERAPIES USING GATING
First Claim
1. An image guided navigation system for guiding an instrument through a region of a patient, said image guided navigation system comprising:
- an anatomical gating device operable to sense a first physiological event and a second physiological event, the first physiological event being different from the second physiological event;
an imaging device operable to capture image data of the region of the patient in response to the second physiological event by comparing one characteristic of the first physiological event with respect a first threshold and when a second characteristic of said second physiological event to a second threshold;
a tracking device operable to track the position of the instrument in the region of the patient;
a controller in communication with said anatomical gating device, said imaging device and said tracking device and operable to register said image data with the region of the patient in response to the first and second physiological events, said controller further operable to superimpose an icon representing the instrument onto the image data of the region of the patient based upon the position tracked by said tracking device; and
a display operable to display the image data of the region of the patient with the superimposed icon of the instrument.
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Abstract
An image guided navigation system for navigating a region of a patient which is gated using ECG signals to confirm diastole. The navigation system includes an imaging device, a tracking device, a controller, and a display. The imaging device generates images of the region of a patient. The tracking device tracks the location of the instrument in a region of the patient. The controller superimposes an icon representative of the instrument onto the images generated from the imaging device based upon the location of the instrument. The display displays the image with the superimposed instrument. The images and a registration process may be synchronized to a physiological event.
283 Citations
25 Claims
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1. An image guided navigation system for guiding an instrument through a region of a patient, said image guided navigation system comprising:
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an anatomical gating device operable to sense a first physiological event and a second physiological event, the first physiological event being different from the second physiological event; an imaging device operable to capture image data of the region of the patient in response to the second physiological event by comparing one characteristic of the first physiological event with respect a first threshold and when a second characteristic of said second physiological event to a second threshold; a tracking device operable to track the position of the instrument in the region of the patient; a controller in communication with said anatomical gating device, said imaging device and said tracking device and operable to register said image data with the region of the patient in response to the first and second physiological events, said controller further operable to superimpose an icon representing the instrument onto the image data of the region of the patient based upon the position tracked by said tracking device; and a display operable to display the image data of the region of the patient with the superimposed icon of the instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Method for image guiding an instrument in a region of a patient, the method comprising:
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identifying a first physiological event; comparing at least one characteristic of the first physiological event to a first predetermined threshold; identifying a second physiological event different from the first physiological event; comparing at least one characteristic of the second physiological event to a second predetermined threshold; capturing image data during the second physiological event when the at least one characteristic of the first physiological event exceeds the first threshold and when the at least one characteristic of the second physiological event exceeds the second threshold; registering the captured image data to the patient during the second physiological event; and displaying the location of the instrument on the image data of the region of the patient by superimposing an icon of the instrument on the image data. - View Dependent Claims (14, 15, 16, 17)
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18. A method for image guiding an instrument in a region of a patient, said method comprising:
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generating a gating signal from an anatomical gating device, the gating signal responsive to the presence of arrhythmias and ectopic beats; capturing image data during diastole in response to the gating signal generated by the anatomical gating device; registering the captured image data to the patient; and displaying the location of the instrument on the image data of the region of the patient by superimaging an icon of the instrument on the image data. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification