Plaque characterization using multiple intravascular ultrasound datasets having distinct filter bands
First Claim
1. A method of characterizing tissue, comprising:
- collecting ultrasound echo information from a portion of an imaged body;
applying a first filter, having a relatively narrow first filter band, to a near range portion of the ultrasound echo information to render near range filtered echo information;
applying a first characterization criterion to the near range filtered echo information to render a near range tissue characterization image;
applying a second filter, having a relatively broad second filter band such that the second filter band is broader than and completely covers a frequency range of the first filter band, to a far range portion of the ultrasound echo information to render far range filtered echo information; and
applying a second characterization criterion to the far range filtered echo information to render a far range tissue characterization image.
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Abstract
A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image.
16 Citations
25 Claims
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1. A method of characterizing tissue, comprising:
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collecting ultrasound echo information from a portion of an imaged body; applying a first filter, having a relatively narrow first filter band, to a near range portion of the ultrasound echo information to render near range filtered echo information; applying a first characterization criterion to the near range filtered echo information to render a near range tissue characterization image; applying a second filter, having a relatively broad second filter band such that the second filter band is broader than and completely covers a frequency range of the first filter band, to a far range portion of the ultrasound echo information to render far range filtered echo information; and applying a second characterization criterion to the far range filtered echo information to render a far range tissue characterization image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable medium including computer-executable instructions facilitating characterizing tissue, the computer-executable instructions facilitating performing a set of steps comprising:
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receiving ultrasound echo information associated with a portion of an imaged body; applying a first filter, having a relatively narrow first filter band, to a near range portion of the ultrasound echo information to render near range filtered echo information; applying a first characterization criterion to the near range filtered echo information to render a near range tissue characterization image; applying a second filter, having a relatively broad second filter band such that the second filter band is broader than and completely covers a frequency range of the first filter band, to a far range portion of the ultrasound echo information to render far range filtered echo information; and applying a second characterization criterion to the far range filtered echo information to render a far range tissue characterization image. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system for generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body, comprising:
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a first filter, having a first filter band, configured to render near range filtered echo information from a near range portion of the ultrasound echo information; a second filter, having a second filter band that completely covers and is broader than a frequency range of the first filter band, configured to render far range filtered echo information from a far range portion of the ultrasound echo information; and a set of characterization criteria including; a first characterization criterion configured to render a near range tissue characterization image from the near range filtered echo information, and a second characterization criterion configured to render a far range tissue characterization image from the far range filtered echo information. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification