Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-12-12
2006-12-12
Ahmed, Samir (Department: 2625)
Image analysis
Applications
Biomedical applications
Reexamination Certificate
active
07149331
ABSTRACT:
The present invention provides methods and software for improving thresholding of coronary calcium scoring. In exemplary embodiments, the present invention applies an automatic search algorithm to slice images of an image scan to generate an individualized signal threshold for each particular patient. In other embodiments, an individualized signal threshold is generated for each slice image of the image scan.
REFERENCES:
patent: 4135247 (1979-01-01), Gordon et al.
patent: 4613754 (1986-09-01), Vinegar et al.
patent: 4974598 (1990-12-01), John
patent: 5170439 (1992-12-01), Zeng et al.
patent: 5325293 (1994-06-01), Dorne
patent: 5335260 (1994-08-01), Arnold
patent: 5396886 (1995-03-01), Cuypers
patent: 5446799 (1995-08-01), Tuy
patent: 5528492 (1996-06-01), Fukushima
patent: 5549117 (1996-08-01), Tacklind et al.
patent: 5570404 (1996-10-01), Liang et al.
patent: 5581460 (1996-12-01), Kotake et al.
patent: 5704371 (1998-01-01), Shepard
patent: 5729620 (1998-03-01), Wang
patent: 5768406 (1998-06-01), Abdel-Mottaleb
patent: 5807256 (1998-09-01), Taguchi et al.
patent: 5832450 (1998-11-01), Myers et al.
patent: 5832504 (1998-11-01), Tripathi et al.
patent: 5895461 (1999-04-01), De La Huerga et al.
patent: 5911133 (1999-06-01), Soble
patent: 5950207 (1999-09-01), Mortimore et al.
patent: 5986662 (1999-11-01), Argiro et al.
patent: 6029138 (2000-02-01), Khorasani et al.
patent: 6049622 (2000-04-01), Robb et al.
patent: 6058322 (2000-05-01), Nishikawa et al.
patent: 6061419 (2000-05-01), Hsieh et al.
patent: 6061695 (2000-05-01), Slivka et al.
patent: 6083162 (2000-07-01), Vining
patent: 6088488 (2000-07-01), Hardy et al.
patent: 6110109 (2000-08-01), Hu et al.
patent: 6122351 (2000-09-01), Schlueter, Jr. et al.
patent: 6133918 (2000-10-01), Conrad et al.
patent: 6137898 (2000-10-01), Broussard et al.
patent: 6190334 (2001-02-01), Lasky et al.
patent: 6205871 (2001-03-01), Saloner et al.
patent: 6226352 (2001-05-01), Salb
patent: 6233304 (2001-05-01), Hu et al.
patent: 6253214 (2001-06-01), Hall et al.
patent: 6304848 (2001-10-01), Singer
patent: 6317617 (2001-11-01), Gilhujis et al.
patent: 6320931 (2001-11-01), Arnold
patent: 6348793 (2002-02-01), Balloni et al.
patent: 6366638 (2002-04-01), Hsieh et al.
patent: 6430430 (2002-08-01), Gosche
patent: 6460003 (2002-10-01), Kump et al.
patent: 6674834 (2004-01-01), Acharya et al.
patent: 6674880 (2004-01-01), Stork et al.
patent: 6697415 (2004-02-01), Mahany
patent: 6813393 (2004-11-01), Takeo
patent: 6928182 (2005-08-01), Chui
patent: 2001/0031076 (2001-10-01), Campanini et al.
patent: 2002/0081006 (2002-06-01), Rogers et al.
patent: 2002/0193687 (2002-12-01), Vining et al.
patent: 2003/0048867 (2003-03-01), Kishore et al.
patent: 2003/0095693 (2003-05-01), Kaufman et al.
patent: 2003/0095695 (2003-05-01), Arnold
patent: 2003/0165262 (2003-09-01), Nishikawa et al.
patent: 2003/0176780 (2003-09-01), Arnold et al.
patent: 2003/0215124 (2003-11-01), Li
patent: 2004/0069951 (2004-04-01), Jones et al.
patent: 2005/0281478 (2005-12-01), Kaufman et al.
“ADC Full Leg / Full Spine Software” Product Brochure by AGFA-Gevaert N.V. Belgium, B-2640 Mortsel-Belguim NE3JT GB 00200101, 2 pages total.
Agatston et al., “Quantification of Coronary Artery Calcium Using Ultrafast Computed Tomography,”JACC, (Mar. 15, 1990) vol. 15, No. 4, pp. 827-832.
Brown et al., “Method for Segmenting Chest CT Image Data Using an Anatomical Model: Preliminary Results,”IEEE Transactions on Medical Imaging, (Dec. 1997) vol. 16, No. 6, pp. 828-839.
Grundy, Scott M., MD, Ph.D., “Coronary Plaque as a Replacement for Age as a Risk Factor in Global Risk Assessment,”The American Journal of Cardiology, (Jul. 19, 2001) vol. 88 (2A), pp. 8E-11E.
Hoff et al., “Age and Gender Distributions of Coronary Artery Calcium Detected by Electron Beam Tomography in 35,246 Adults,”The American Journal of Cardiology, (Jun. 15, 2001) vol. 87, pp. 1335-1339.
Raggi et al., “Calcium Scoring of the Coronary Artery by Electron Beam CT: How to Apply an Individual Attenuation Threshold” (Feb. 2002) AJR vol. 178, pp. 497-502.
Rumberger et al., “Electron Beam Computed Tomographic Coronary Calcium Scanning: A Review and Guidelines for Use in Asymptomatic Persons,”Mayo Foundation for Medical Education and Research, (Mar. 1999) vol. 74, pp. 243-252.
Schmermund et al., “An Algorithm for Noninvasive Identification of Angiographic Three-Vessel and/or Left Main Coronary Artery Disease in Symptomatic Patients on the Basis of Cardiac Risk and Electron-Beam Computed Tomographic Calcium Scores,”Journal of the American College of Cardiology, (1999) vol. 33, No. 2, pp. 444-452.
Sutton-Tyrell et al., “Usefulness of Electron Beam Tomography to Detect Progression of Coronary and Aortic Calcium in Middle-Aged Women,”The American Journal of Cardiology, (Mar. 1, 2001) vol. 87, pp. 560-564.
Zhu et al., “Accuracy of Area Measurements Made From MR Images Compared With Computed Tomography,”Journal of Computer Assisted Tomography(Jan./Feb. 1986) vol. 10, No. 1, pp. 96-102.
U.S. Appl. No. 10/844,026, filed May 12, 2004, Kaufman.
U.S. Appl. No. 10/096,356, filed Mar. 11, 2002, Rumberger.
Acharya, K.C. et al., “Calcium score with electron beam and single slice helical CT: A three center study,” Radiological Society of North America 86th Annual Meeting Abstract Book Suppl, 142:232-233 (2000).
Achenbach, S. et al., “Overlapping cross-sections significantly improve the reproducibility of coronary calcium measurements by electron beam tomography: A phantom study”J. Comput. Assist. Tomogr., 25(4):569-573 (2001).
Agatston, A.S. et al., “Electron beam CT coronary calcium predicts future coronary events (abstr),” Abstract 2097,Circulation, 94:1/360 (1996).
Arad, Y. et al., “Predictive value of electron beam computed tomography of the coronary arteries: 19-month follow-up of 1173 asymptomatic subjects,”Circulation, 93:1951-1953 (1996), printed from internet Aug. 17, 2004.
Baumgart, D. et al., “Comparison of electron beam computed tomography with intracoronary ultrasound and coronary angiography for detection of coronary atherosclerosis,”JACC, 30(1):57-64 (1997).
Becker, C.R. et al., “Helical and single-slice conventional CT versus electron beam CT for the quantification of coronary artery calcification,”A.J.R., 174:543-547 (2000).
Bielak, L.F. et al., “Coronary artery calcification measured at electron-beam CT: Agreement in dual scan runs and change over time,”Radiology, 218(1):224-229 (2001).
Boese, J.M. et al., “Optimizing temporal resolution in CT with retrospective ECG gating,”Radiologe, 40(2):123-129 (2000). [in German].
Callister, T.Q. et al., “Coronary artery disease: Improved reproducibility of calcium scoring with an electron-beam CT volumetric method,”Radiology, 208:807-814 (1998).
Carr, J.J. et al., “Evaluation of subsecond gated helical CT for quantification of coronary artery calcium and comparison with electron beam CT,”A.J.R., 174:915:921 (2000).
Detrano, R. (Hong) et al., “Prognostic value of coronary calcification and angiographic stenoses in patients undergoing coronary angiography,”JACC, 27:285-290 (1996).
Georgiou, D. et al., “Screening patients with chest pain in the emergency department using electron beam tomography: A follow-up study,”JACC, 38(1):105-110 (2001).
Goldin, J.G. et al., “Spiral versus electron-beam CT for coronary artery calcium scoring,”Radiology, 221:213-221 (2001).
Hoffman, U. et al., “Precision and variability of multiple scoring methods for ex vivo quantification of vascular calcification by multidetector computed tomography,” Abstract 30,Radiology, 225(P):240 (2002).
Hong, C. et al., “Coronary artery calcium: absolute quantification in nonenhanced and contrast-enhanced multi-detector row CT studies,”Radiology, 223:474-480 (2002).
Hong, C. et al., “C
Greiss Friederike
Kaufman Leon
Ahmed Samir
Cedara Software Corp.
Mistry O'Neal R.
Townsend and Townsend / and Crew LLP
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