US5151856A
Expired / Lapsed
US
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Method of displaying coronary function
Assignee: MENACHEM HALMANN HAIM AZHARI RAFAEL BEYAR SAMUEL SIDEMAN URI DINNAR
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Filing: 1989-08-30
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Granted: 1992-09-29
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Expires: 2009-08-30
Abstract
Abstract A method of displaying cardiac function which forms by helical or segmental analysis a three-dimensional cage model which can be shaded and color coded to indicate local and regional dysfunction by thickening or motion and stresses. On this model is superimposed the coronary artery tree including stenosed segments as obtained from the same patient by angiograms and the resulting three-dimensional coronary and mechanical model can be subjected to animation and analysis for diagnostic purposes and to simulate effects of treatment.
Inventors
- 👤 Menachem Halmann
- 👤 Haim Azhari
- 👤 Rafael Beyar
- 👤 Samuel Sideman
- 👤 Uri Dinnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:51
CPC Classifications
G; G06; G06T; G06T15/00; A; A61; A61B; A61B6/00; A61B6/02; A61B6/027
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
127 words
A method of displaying the coronary anatomy, superimposed on and complementing a 3D shape and function of a mammalian heart, comprising the steps of: (a) electronically generating a plurality of two-dimensional sections of a mammalian heart; (b) subjecting said sections automatically to a segmental or helical pattern analysis to generate a three-dimensional model of said mammalian heart; (c) subjecting said mammalian heart to angiography to obtain a picture of the coronary artery pattern of said mammalian heart; (d) superimposing said coronary artery pattern on said three-dimensional model using as a reference for locating said coronary artery pattern relative to said model a structural element of said mammalian heart detected in said model; and (e) displaying said model with said artery pattern superimposed thereon in a three-dimensional display.
Claim 2
Independent Claim
127 words
A method of displaying the coronary anatomy, superimposed on and complementing a 3D shape and function of a mammalian heart, comprising the steps of: (a) electronically generating a plurality of two-dimensional sections of a mammalian heart; (b) subjecting said sections automatically to a segmental or helical pattern analysis to generate a three-dimensional model of said mammalian heart; (c) subjecting said mammalian heart to angiography to obtain a picture of the coronary artery pattern of said mammalian heart; (d) superimposing said coronary artery pattern on said three-dimensional model using as a reference for locating said coronary artery pattern relative to said model a structural element of said mammalian heart detected in said model; and (e) displaying said model with said artery pattern superimposed thereon in a three-dimensional display.
Claim 3
Dependent Claim
24 words
The method defined in claim 1 wherein said plurality of two-dimensional sections of a mammalian heart are electronically generated in step (a) by MRI.
Claim 4
Dependent Claim
21 words
The method defined in claim 1 wherein said plurality of two-dimensional sections are obtained by ultrasound imaging of said mammalian heart.
Claim 5
Dependent Claim
24 words
The method defined in claim 1 wherein said plurality of two-dimensional sections of a mammalian heart are generated in step (a) by computer tomography.
Claim 6
Dependent Claim
33 words
The method defined in claim 1, further comprising the step of subjecting the displayed model with said artery pattern superimposed thereon to animation representing a beating of the heart represented by said model.
Claim 7
Dependent Claim
30 words
The method defined in claim 5 wherein the stored three-dimensional models include models of hearts with coronary diseases including ischemic heart disease and infarcts, aneurysm, hypertrophy, cardiomyopathy and valvular diseases.
Claim 8
Dependent Claim
56 words
The method defined in claim 1, further comprising the step of storing three-dimensional models or data in analytical or compressed form representing a normal heart and hearts with various pathologies, electronically comparing said displayed model with the stored three-dimensional models or said data, and automatically indicating a pathological state of said mammalian heart by the comparison.
Claim 9
Dependent Claim
35 words
The method defined in claim 1, further comprising the steps of analyzing said sections for ascertaining a regional physiological stress representing regional loading, and differently coloring regions of said model with different regional physiological stress.
Claim 10
Dependent Claim
40 words
The method defined in claim 1, further comprising the steps of analyzing said sections for ascertaining regional geometric characteristics representing mechanical degradation at certain zones of said mammalian heart, and differently coloring regions of said model with different mechanical degradations.
Claim 11
Independent Claim
96 words
A method of displaying the function of a mammalian heart, comprising the steps of: (a) generating a plurality of two-dimensional sections of a mammalian heart; (b) subjecting said sections automatically to a segmental or helical pattern analysis to generate a three-dimensional model of said mammalian heart; (c) analyzing said sections for ascertaining a presence of mechanical degradation of certain zones of the heart; (d) electronically coloring zones of the displayed model corresponding to said certain regions; (e) displaying said model with said colored zones; and (f) subjecting the model displayed in step (e) to video animation.
Claim 12
Independent Claim
96 words
A method of displaying the function of a mammalian heart, comprising the steps of: (a) generating a plurality of two-dimensional sections of a mammalian heart; (b) subjecting said sections automatically to a segmental or helical pattern analysis to generate a three-dimensional model of said mammalian heart; (c) analyzing said sections for ascertaining a presence of mechanical degradation of certain zones of the heart; (d) electronically coloring zones of the displayed model corresponding to said certain regions; (e) displaying said model with said colored zones; and (f) subjecting the model displayed in step (e) to video animation.
Claim 13
Dependent Claim
24 words
The method defined in claim 10 wherein said plurality of two-dimensional sections of a mammalian heart are electronically generated in step (a) by MRI.
Claim 14
Dependent Claim
19 words
The method defined in claim 10 wherein said two-dimensional sections are obtained by ultrasound imaging of the mammalian heart.
Claim 15
Dependent Claim
25 words
The method defined in claim 10 wherein said plurality of two-dimensional sections of a mammalian heart are electronically generated in step (a) by computer tomography.
Claim 16
Dependent Claim
30 words
The method defined in claim 10 wherein the displayed model with said artery pattern superimposed thereon is subjected to animation representing a beating of the heart represented by said model.
Claim 17
Dependent Claim
46 words
The method defined in claim 10, further comprising the step of storing three-dimensional models representing characteristic normal hearts and hearts with various pathologies, electronically comparing said displayed model with the stored three-dimensional models, and automatically indicating a pathological state of said mammalian heart by the comparison.
Claim 18
Dependent Claim
31 words
The method defined in claim 15 wherein the stored three-dimensional models include models of hearts with coronary diseases including stenosis, ischemic heart disease and infarct, aneurysm, hypertrophy, cardiomyopathy and valvular diseases.
Claim 19
Dependent Claim
34 words
The method defined in claim 1, further comprising the steps of subjecting the heart displayed in step (e) to animation and analyzing simulated and real effects on the mechanical behavior of the animated heart.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-29 | 1996-03-30 | 1996-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-29 | 2000-03-30 | 2000-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-29 | 2004-03-30 | 2004-09-29 | $7700.00 | Window Closed / Lapsed |