US5825908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anatomical visualization and measurement system
Assignee: A-VIEW Corp
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Filing: 1995-12-29
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Granted: 1998-10-20
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Expires: 2015-12-29
Abstract
Abstract The present invention provides an anatomical visualization and measurement system including a first database of 2-D slice images and a second database including a 3-D computer model defining a first software object. Apparatus is provided for selecting a 2-D slice image from the first database. Apparatus is also provided for inserting a second software object into the 3-D computer model. The second software object includes a planar surface and is inserted into the 3-D computer model at the position which corresponds to the position of the selected 2-D slice image relative to the scanned structure. Apparatus is also provided for texture mapping the 2-D slice image onto the planar surface. Display apparatus is provided for displaying an image which simultaneously provides a view of the first software object and the 2-D slice image texture mapped onto the planar surface. An apparatus and method are also provided for determining structural dimensions and volumes using appropriate scanned 2-D slice image information. The present invention permits an appropriate set of scanned 2-D images to be assembled into a 3-D database, information regarding selected structural features to be segmented out of the 3-D database, and measurements to be made based on these structural features. In addition, the present invention permits a set of oblique images to be generated based on these structural features, which oblique images may themselves be used for measurement purposes.
Inventors
- 👤 Steven D. Pieper
- 👤 Michael A. McKenna
- 👤 David T. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:39
CPC Classifications
G; G06; G06T; G06T7/00; G06T7/60; G06T7/66; G06T7/62; G06T2207/00; G06T2207/30; G06T2207/30004
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
117 words
A system for determining a dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said system comprising: means for assembling said set of scanned 2-D slice images into a 3-D database; means for extracting an anatomical feature from the information contained in said 3-D database; means for specifying a measurement to be made based on said extracted anatomical feature; and means for calculating the measurement so specified; wherein said anatomical feature is the centerline of said anatomical structure, and wherein said system further comprises a cumulative sum table derived from said centerline, and said means for calculating utilize said cumulative sum table to determine a length measurement.
Claim 2
Independent Claim
117 words
A system for determining a dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said system comprising: means for assembling said set of scanned 2-D slice images into a 3-D database; means for extracting an anatomical feature from the information contained in said 3-D database; means for specifying a measurement to be made based on said extracted anatomical feature; and means for calculating the measurement so specified; wherein said anatomical feature is the centerline of said anatomical structure, and wherein said system further comprises a cumulative sum table derived from said centerline, and said means for calculating utilize said cumulative sum table to determine a length measurement.
Claim 3
Independent Claim
107 words
A system for determining a dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said system comprising: means for assembling said set of scanned 2-D slice images into a 3-D database; means for extracting an anatomical feature from the information contained in said 3-D database; means for specifying a measurement to be made based on said extracted anatomical feature; and means for calculating the measurement so specified; wherein said system comprises a cumulative sum table derived from said anatomical feature, and further wherein said means for calculating utilize said cumulative sum table to determine a volume measurement.
Claim 4
Independent Claim
107 words
A system for determining a dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said system comprising: means for assembling said set of scanned 2-D slice images into a 3-D database; means for extracting an anatomical feature from the information contained in said 3-D database; means for specifying a measurement to be made based on said extracted anatomical feature; and means for calculating the measurement so specified; wherein said system comprises a cumulative sum table derived from said anatomical feature, and further wherein said means for calculating utilize said cumulative sum table to determine a volume measurement.
Claim 5
Independent Claim
106 words
A method for determining a length dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said method comprising the steps of: (1) assembling said set of scanned 2-D slice images into a 3-D database; (2) extracting an anatomical feature from the information contained in said 3-D database, said anatomical feature comprising the centerline of said anatomical structure, and generating a cumulative sum table derived from said centerline; (3) specifying a length measurement to be made with respect to said cumulative sum table based on said extracted anatomical feature; and (4) calculating the length measurement so specified.
Claim 6
Independent Claim
106 words
A method for determining a length dimension of an anatomical structure using an appropriate set of 2-D slice images obtained by scanning said anatomical structure, said method comprising the steps of: (1) assembling said set of scanned 2-D slice images into a 3-D database; (2) extracting an anatomical feature from the information contained in said 3-D database, said anatomical feature comprising the centerline of said anatomical structure, and generating a cumulative sum table derived from said centerline; (3) specifying a length measurement to be made with respect to said cumulative sum table based on said extracted anatomical feature; and (4) calculating the length measurement so specified.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-10-19 | 2002-04-20 | 2002-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-19 | 2006-04-20 | 2006-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-19 | 2010-04-20 | 2010-10-20 | $7700.00 | Window Closed / Lapsed |