Surgery – Truss – Pad
Patent
1991-08-09
1997-01-14
Harvey, Jack B.
Surgery
Truss
Pad
1286531, 36441322, G06K 1500
Patent
active
055948499
ABSTRACT:
A method and apparatus for performing biomagnetic imaging to determine the location and intensity of current sources within a subject includes a sensor unit for sensing the magnetic field within the subject and for providing sensing signals. A signal processor defines a grid having multiple grid points and performs inverse estimation to determine the distribution of current sources on the defined grid based on the sensing signals. The signal processor then modifies the grid to improve the resolution of the current sources distributed on the grid. A control unit controls the operation of the signal processor and processes image data to provide magnified and non-magnified displays on a display unit. The biomagnetic imaging method and apparatus can be combined with a system for providing magnetic resonance imaging data so as to produce a superimposed display including an MRI image and a biomagnetic image.
REFERENCES:
patent: 4598368 (1986-07-01), Umemura
patent: 4928253 (1990-05-01), Yamauchi et al.
patent: 5046027 (1991-09-01), Taaffe et al.
patent: 5063348 (1991-11-01), Kuhara et al.
patent: 5285385 (1994-02-01), Igarashi et al.
patent: 5291889 (1994-03-01), Kenet et al.
Okada, et al, "Society for Neuroscience Abstracts-509.16"; Current Density Imaging as a Method of Visualizing Neuronal Activity 1990.
Okada, et al; "Current Density Imaging as a Method of Visualizing Neuronal Activity of the Brain"; 1990; p. 1241.
Jeffs, et al; "An Evaluation of Methods for Neuromagnetic Image Reconstruction"; 1987; pp. 713-723.
Smith, et al; "Linear Estimation Theory Applied to the Reconstruction of a 3-D Vector Current Distribution"; (1990) pp. 658-667.
Abraham-Fuchs, et al., "MCG Inverse Solution: Influence of Coil Size, Grid Size, Number of Coils, and SNR", IEEE Transactions on Biomedical Engineering, vol. 35, No. 8, Aug. 1988, pp. 573-576.
Knuutila et al., "On the Spatial Locating Accuracy of Multichannel Magnetometers", Advances in Biomagnetism, pp. 713-716, 1989.
Paulson et al., "Experimental Accuracy of Localization of Current Dipoles in a Spherical Phanton", Advances in Biomagnetism, pp. 717-720.
Society for Neuroscience Abstracts, vol. 16, 1990, p. 1241.
Society for Neuroscience Abstracts, 509.16, "Current Density Imaging as a Method of Visualizing Neuronal Activity of the Brain", by Okada et al., (1990), p. 1241.
SPIE, vol. 767, Medical Imaging (1987), "Bioelectric Current Image Reconstruction from Measurement of the Generated Magnetic Fields", by Dallas et al., pp. 2-9.
IEEE Transactions on Biomedical Engineering, vol. BME-32, No. 11, Nov. 1985, "A Comparison of Moving Dipole Inverse Solutions Using EEG's and MEG's", by Cuffin, pp. 905-910.
IEEE Transactions on Biomedical Engineering, vol. BME-34, No. 9, Sep. 1987, "An Evaluation of Methods for Neuromagnetic Image Reconstruction", by Jeffs et al., pp. 713-723.
Phys. Med. Bio, 32, (1989), "Basic Mathematical and Electro-magnetic Concepts of the Biomagnetic Inverse Problem", by Sarvas, pp. 11-22.
Applied Optics, vol. 29, No. 5, Feb. 10, 1990, "Linear Estimation Theory Applied to the Reconstruction of a 3-D Vector Current Distribution", by Smith et al., pp. 658-667.
Journal of the Optical Society of America, vol. 54, No. 7, Jul. 1964, "Diffraction and Resolving Power" by Harris, pp. 931-936.
Numer. Math., Bd. 14, Handbook Series Linear Algebra, (1970), "Singular Value Decomposition and Least Squares Solution", by Golub et al., pp. 403-420.
IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 4, Aug. 1981, "SVD Pseudoinversion Image Reconstruction", by Shim et al., pp. 904-909.
Goto Takao
Hayashi Takehiko
Kawabe Kenji
Kuc Roman B.
Nakashima Yoshiyasu
Chung-Trans X.
Fujitsu Limited
Harvey Jack B.
Yale University
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