Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1993-11-15
1997-07-01
Snow, Walter E.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324308, 1286532, G01R 3348
Patent
active
056442327
ABSTRACT:
An MRI apparatus and method useful for both industrial applications and medical applications is provided. The apparatus and procedures are capable of estimating the value of a continuous property, such as concentration, viscosity or the like by interpolating or extrapolating from a model derived from training sets of data representing measurements of samples with known properties. A number of techniques are provided for objectifying the analysis. Cluster analysis techniques can be used to supplement, assist or replace subjective judgments by trained operators. Calculations or judgments regarding similarity can be made with respect to stored libraries of signatures, particularly where the library of stored signatures is obtained objectively, e.g., using cluster analysis, standardization and calibration. The signatures can be expanded signatures which include non-MR as well as MR data. Inhomogeneities in the field of a particular MR device can be corrected for based on measurements of a calibration standard having a homogeneous make up. MR measurements taken through different planes of a body or different times can be standardized by including, in at least some of the fields of view, a calibration standard which has a known MR signature.
REFERENCES:
patent: 4642778 (1987-02-01), Hieftje et al.
patent: 4701705 (1987-10-01), Rollwitz
patent: 4734646 (1988-03-01), Shendy et al.
patent: 4736751 (1988-04-01), Gevins et al.
patent: 4973111 (1990-11-01), Haacke et al.
patent: 5003979 (1991-04-01), Merickel et al.
patent: 5049819 (1991-09-01), Dechene et al.
patent: 5218299 (1993-06-01), Dunkel
patent: 5218529 (1993-06-01), Meyer et al.
patent: 5302896 (1994-04-01), Dechene et al.
patent: 5302897 (1994-04-01), Tache et al.
patent: 5311131 (1994-05-01), Smith
patent: 5319308 (1994-06-01), Dechene et al.
patent: 5367260 (1994-11-01), Dechene et al.
patent: 5420508 (1995-05-01), Smith
Oppelt, A., "Entwicklung und Erprobung von Funktionsmustern fur die Kernspintographie," Siemens Forschungs Und Entwicklungsberichte, vol. 15, no. 2, pp. 78-85, (1986).
Hylton, N. M., et al., "Information Processing in Magnetic Resonance Imaging," Critical Reviews in Diagnostic Imaging, 26(4):325 (1986).
Pearce, R.B., "Expert Systems Enable Computers to Share in Imaging Decisions," Diagnostic Imaging, pp. 146-152 (1987).
Vannier, et al., "Multispectral Magnetic Resonance Image Analysis," CRC Critical Reviews in Biomedical Engineering, 15;117-144 (1987).
Jungke, M., et al., "Information Processing in Nuclear Magnetic Resonance Imaging," Magnetic Resonance Imaging, 6:683-693 (1988).
DeLaPaz, R.L., et al., "Computerized Analysis and Information Extraction of Medical Magnetic Resonance Images (MRI)," SPIE, 902:151-154 (1988).
Nyman, et al., "An Attempt to Characterize Malignant Lymphoma in Spleen, Liver, and Lymph Nodes with Magnetic Resonance Imaging," Yearbook of Diagnostic Radiology, pp. 294-295 (1989).
Grahn, H., et al., "Tissue Discrimination in Magnetic Resonance Imagining: A Predictive Multivariate Approach," Chemometrics and Intelligent Laboratory Systems, 7:87-93 (1989).
Meeting Abstract, Radiology, 173CP:227-228 (1989).
Hyman, et al., "Characterization of Normal Brain Tissue Using Seven Calculated MRI Parameters and a Statistical Analysis System," Magnetic Resonance in Medicine, vol. 11, No. 1, pp. 22-34, (1989).
Kapouleas, T., "Segmentation and Feature Extraction for Magnetic Resonance Brain Image Analysis," 10th International Conference on Pattern Recognition, pp. 583-590, (1990).
Merickel, et al., "Diseased Tissue Identification and Quantification Utilizing MRI," Proc. of the 12th Annual Int'l Conf. of the IEEE Engineering in Medicine and Biological Society, vol. 12, pp. 394-395, (1990).
Bydder, G.M., "Interpretation and Clinical Application of Magnetic Resonance Imaging," IEEE Transactions on Magnetics, vol. 26, No. 5, pp. 2089-2091, (1990).
Tzalmona, A., et al., "Detection of Chemical Waves by Magnetic Resonance Imaging," Chemical Physics Letters, 174:199-202 (1990).
Wang, Y., et al., "Multivariate Instrument Standardization," Analytical Chemistry, 63:2750-2756 (1991).
Resonance Newsletter, No. 25, pp. 1-22, Oct., 1991.
Madsen, et al, "Low-Contrast Focal Lesion Detectability Phantom for 1H MR Imaging," Medical Physics, vol. 18, No. 3, pp. 549-554, (1991).
Tien, R.D., "Fat-Suppression MR Imaging in Neuroradiology: Techniques and Clinical Application," American Journal of Roentgenology, 158:369-379 (1992).
Sharaf, M.A., et al., "Chemical Analysis: A Series of Monographs on Analytical Chemstry and its Applications," Wiley-Interscience Publication, 82:281-295 (1986).
Grahn, H., et al., "Data Analysis of Multivariate Magnetic Resonance Images," pp. 1-37 (1988).
Geladi, P., et al., "Principal Component Analysis on Multivariate Images." (1988).
Mah Raymond Y.
Snow Walter E.
University of Washington
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