Ultrasonic system and method for tissue viability imaging
First Claim
Patent Images
1. A method of imaging to aid tissue viability determinations comprising the steps of:
- (a) detecting tissue motion corresponding to at least one point of in a tissue;
(b) estimating perfusion as a function of intensity data and time for the at least one point; and
(c) displaying an image responsive to the detected tissue motion and the estimated perfusion.
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Accused Products
Abstract
A method of imaging to aid tissue viability determinations is provided. Tissue motion is detected for at least region of tissue. Perfusion is estimated as a function of intensity data and time for the region of tissue. An image responsive to the detected tissue motion and the estimated perfusion is displayed. A combination of tissue motion imaging and perfusion estimation provides an assessment of tissue viability. If tissue exhibits perfusion and motion, then the tissue is likely normal. Any other perfusion and motion characteristic combination indicates abnormal tissue viability.
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Citations
42 Claims
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1. A method of imaging to aid tissue viability determinations comprising the steps of:
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(a) detecting tissue motion corresponding to at least one point of in a tissue; (b) estimating perfusion as a function of intensity data and time for the at least one point; and (c) displaying an image responsive to the detected tissue motion and the estimated perfusion. - View Dependent Claims (2, 3, 4)
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5. An apparatus for imaging to aid tissue viability determinations, the apparatus comprising:
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a processing structure for detecting tissue motion corresponding to at least one point of the tissue and for estimating perfusion as a function of intensity data and time for substantially the at least one point; and a display device for displaying an image responsive to the detected tissue motion and the estimated perfusion. - View Dependent Claims (6, 7, 8, 9)
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10. A method of imaging to aid tissue viability determinations comprising the steps of:
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(a) detecting tissue motion corresponding to at least one point of a tissue; (b) estimating perfusion as a function of intensity and time for the at least one point; and (c) outputting a signal responsive to the detected tissue motion and the estimated perfusion; (d) displaying an image responsive to the signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus for imaging to aid tissue viability determinations, the apparatus comprising:
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a processing structure for detecting tissue motion corresponding to at least one point of a tissue and for estimating perfusion as a function of intensity data and time for substantially the at least one point; a mapping structure for receiving first and second signals responsive to the detected tissue motion and the estimated perfusion, respectively, and for outputting a third signal responsive to the first and second signals; and a display device for displaying an image responsive to the third signal. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of imaging to aid tissue viability determinations comprising the steps of:
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(a) detecting tissue motion corresponding to at least one region of a tissue; (b) estimating perfusion as a function of intensity for the at least one region; (c) outputting a tissue viability display value representing one of at least three viability states associated with the at least one region and responsive to the detected tissue motion and the estimated perfusion; and (d) displaying a tissue viability image responsive to the tissue viability display value. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. An apparatus for imaging to aid tissue viability determination, the apparatus comprising:
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a Doppler processing path for detecting tissue motion corresponding to at least one region of a tissue; an intensity processing path for estimating perfusion as a function of intensity data corresponding to the at least one region; a look-up table for outputting a tissue viability display value representing one of at least three viability associated with the at lest one region and responsive to the detected tissue motion and the estimated perfusion; and a display for displaying a tissue viability image responsive to the tissue viability display value.
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Specification