Method and system for atherosclerosis risk scoring

Image analysis – Applications – Biomedical applications

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C703S002000

Reexamination Certificate

active

07340083

ABSTRACT:
A method for characterizing the risk associated with atherosclerosis is disclosed. The method uses one or more images of cross-sections of the artery or other vessel of interest to identify and locate components of the atherosclerotic deposit, including any hemorrhage, necrotic core, and calcification, and to determine the status and composition of the fibrous cap. In one embodiment, high resolution MRI images are utilized, although other imaging modalities may alternatively be used. A simple scoring system is applied that accounts for the presence of these components and more heavily weights the presence of these components in the juxtaluminal portion of the deposit. The status of the fibrous cap (intact or ruptured) and the composition of the fibrous cap (collagen or mixed tissue) are also incorporated into a final atherosclerosis risk score.

REFERENCES:
patent: 6763261 (2004-07-01), Casscells, III et al.
patent: 6816743 (2004-11-01), Moreno et al.
patent: 7149331 (2006-12-01), Kaufman et al.
patent: 2003/0215124 (2003-11-01), Li
patent: 2004/0022359 (2004-02-01), Acharya et al.
patent: 2004/0133100 (2004-07-01), Naghavi et al.
Rumberger, John A., Bruce H. Brundage, Daniel J. Rader, and George Kondos. “Electron Beam Computed Tomographic Coronary Calcium Scanning: A Review and Guidelines for Use in Asymptomatic Persons”. Mayo Clinic Proceedings: 1999. vol. 74. pp. 243-252.
Bassiouny, Hisham S., Yashuhiro Sakaguchi, Susanne A. Mikucki, James F. McKinsey, Giancarlo Piano, Bruce L. Gewertz, and Seymour Glagov. “Juxtaluminal Location of Plaque Necrosis and Neoformation in Symptomatic Cariod Stenosis”. Journal of Vascular Surgery. vol. 26, No. 4. pp. 585-594.
Kerwin, William, Chao Han, Baocheng Chu, Dongxiang Xu, Ying Luo, Jenq-Neng Hwang, Thomas Hatsukami, and Chun Yuan. “A Quantitative Vascular Analysis System for Evaluation of Atherosclerotic Lesions by MRI”. Proceedings of Medical Image Computing and Computer-Assisted Intervention: 2001. Utrecht, The Netherlands. pp. 786-794.
Yuan, Chun, Lee M. Mitsumori, Kirk W. Beach, and Kenneth R. Maravilla. “Carotid Atherosclerotic Plaque: Noninvasive MR Characterization and Identification of Vulnerable Lesions”. Radiology: 2001. vol. 211. pp. 285-299.
Yuan et al. “In Vivo Accuracy of Multispectral Magnetic Resonance Imgaing for Identifying Lipid-Rich Necrotic Cores and Intraplaque Hemorrhage in Advanced Human Carotid Plaques”. Circulation: 2001. vol. 104. pp. 2051-2056.
Toussaint, Jean-Francois, Glenn M. LaMuraglia, James F. Southern, Valentin Fuster, and Howard L. Kantor. “Magnetic Resonance Images Lipid, Fibrous, Calcified, Hemorrhagic, and Thrombotic Components of Human Atherosclerosis In Vivo”. Circulation: 1996. vol. 94. pp. 932-938.
Saam, T., M.S. Ferguson, V.L. Yarnykh, N. Takaya, D. Xu, N.L. Polissar, T.S. Hatsukami, and C. Yuan. “Quantitative Evaluation of Carotid Plaque Composition by In Vivo MRI”. Artheriosclerosis, Thrombosis, and Vasular Biology: 2005. vol. 25. pp. 234-239.
Hatsukami, Thomas S., William Kerwin, Jian-Ming Cai, X.J. Kang, Nayak Polissar, Marina Ferguson, Randy Small, Xue-Qiao Zhao, and Chun Yuan. “High-Resolution Magnetic Resonance Imaging of Carotid Atherosclerosis”. International Congress Series 1262 (2004). Elsevier. pp. 95-98.
Hiro, Takafumi, Takashi Fujii, Kyounori Yasumoto, Takashige Murata, Akihiro Murashige, and Masunori Matsuxaki. “Detection of Fibrous Cap in Atherosclerotic Plaque by Intravascular Ultrasound by Use of Color Mapping of Angle-Dependent Echo-Intensity Variation”. Circulation: 2001. vol. 103. pp. 1206-1211.
Zhi-Yong, Li, Simon P.S. Howarth, Tjun Tang, and Jonathan H. Gillard. “How Critical is Fibrous Cap Thickness to Carotid Plaque Stability?: A Flow-Plaque Interaction Model”. Stroke: May 2006. pp. 1195-1199.
Devuyst, G., et al., “Ultrasound Measurement of the Fibrous Cap in Symptomatic and Asymptomatic Atheromatous Carotid Plaques,”Circulation, pp. 2776-2782, May 31, 2005.
Hatsukami, T.S., et al., “Visualization of Fibrous Cap Thickness and Rupture in Human Atherosclerotic Carotid Plaque In Vivo With High-Resolution Magnetic Resonance Imaging,”Circulation, pp. 959-964, Aug. 29, 2000.
Kampschulete, A., et al., “Differentiation of Intraplaque Versus Juxtaluminal Hemorrhage/Thrombus in Advance Human Carotid Atherosclerotic Lesions by In Vivo Magnetic Resonance Imaging,”Circulation, pp. 3239-3244, Nov. 16, 2004.
Lovett, J.K., and P.M. Rothwell, “Site of Carotid Plaque Ulceration in Relation to Direction of Blood Flow: An Angiographic and Pathological Study,”Cerebrovasc. Dis. 16:369-375, 2003.
Virmani, R., et al., “Lessons From Sudden Coronary Death: A Comprehensive Morphological Classification Scheme for Atherosclerotic Lesions,”Arterioscler. Thromb. Vasc. Biol., pp. 1262-1275, May 2000.
Yuan, C., et al., “Identification of Fibrous Cap Rupture With Magnetic Resonance Imaging is Highly Associated With Recent Transient Ischemic Attack or Stroke,”Circulation, pp. 181-185, Jan. 15, 2002.
Yuan, C., and W.S. Kerwin, “MRI of Atherosclerosis,”J. Cardiovasc. Magn. Reson. 19: 710-719, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and system for atherosclerosis risk scoring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for atherosclerosis risk scoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for atherosclerosis risk scoring will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3980256

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.