Title:
SYSTEM, METHOD, AND PROGRAM FOR TOMOGRAPHIC IMAGING, AND RECORDING MEDIUM IN WHICH PROGRAM IS RECORDED
Document Type and Number:
WIPO Patent Application WO/2022/158575
Kind Code:
A1
Abstract:
To provide a system, method, and program whereby a reconstructed image supported by an algebraically exact solution of an inverse discrete Radon transform can be generated by a small computational resource, and a recording medium in which the program is recorded. A method executed by a computer that determines an operating parameter for a tomographic imaging system for reconstructing a tomographic image by inverse discrete Radon transformation in a scan angle range of less than (180° - 180°/number of projections), wherein the method includes: a step for determining a system matrix on the basis of the value of a one or two operating parameters designated from among a number of detection elements, a number of projections, and a scan angle range less than (180° - 180°/number of projections); a step for generating a square system matrix from the determined system matrix; a step for deciding whether an inverse matrix exists for the square system matrix; and a step for repeating said steps as necessary to determine the value of an operating parameter that corresponds to an operating parameter other than the designated one or two operating parameters, for which the inverse matrix of the square system matrix exists.
Inventors:
TAKANASHI TAKAOKI (JP)
NODA SHIGEHO (JP)
TAMURA MASARU (JP)
OTAKE YOSHIE (JP)
NODA SHIGEHO (JP)
TAMURA MASARU (JP)
OTAKE YOSHIE (JP)
Application Number:
PCT/JP2022/002247
Publication Date:
July 28, 2022
Filing Date:
January 21, 2022
Export Citation:
Assignee:
RIKEN (JP)
International Classes:
G01T1/161; A61B6/03; G06T1/00
Domestic Patent References:
| WO2019230740A1 | 2019-12-05 | |||
| WO2019230741A1 | 2019-12-05 | |||
| WO2014021349A1 | 2014-02-06 | |||
| WO2013105583A1 | 2013-07-18 |
Foreign References:
| US20090123048A1 | 2009-05-14 | |||
| JP2015226753A | 2015-12-17 | |||
| CN104899827A | 2015-09-09 |
Other References:
AVIASH C. KAKMOLCOLM SLANEY: "Principles of Computerized Tomographic Imaging", 1988, IEEE PRESS
STANLEY R. DEANS: "The Radon Transform and Some of its Applications", 1983, KRIEGER PUBLICATIONS
ROBERT L. SIDDON: "Fast calculation of the exact radiological path for a three-dimensional CT array", MEDICAL PHYSICS, vol. 12, no. 2, 1985, pages 252 - 255, XP000577395, DOI: 10.1118/1.595715
SUNNEGARDH, J.DANIELSSON, P.-E.: "A New Anti-Aliased Projection Operator for Iterative CT Reconstruction", 9TH INTERNATIONAL MEETING OF FULLY THREE-DIMENSIONAL IMAGE RECONSTRUCTION IN RADIOLOGY AND NUCLEAR MEDICINE, 2009, pages 125 - 127
SERHAN O. ISIKAMWAHEB BISHARASAM MAVANDADIFRANK W. YUSTEVE FENGRANDY LAUAYDOGAN OZCAN: "Lens-free optical tomographic microscope with a large imaging volume on a chip", PNAS, vol. 108, no. 18, 3 May 2011 (2011-05-03), pages 7296 - 7301, XP055121935, Retrieved from the Internet DOI: 10.1073/pnas.1015638108
N. KAWASEM. KATOH. NISHIOKAH. JINNAI: "Transmission electron microtomography without the ''missing wedge'' for quantitative structural analysis", ULTRAMICROSCOPY, vol. 107, 2007, pages 8 - 15, XP005781314, DOI: 10.1016/j.ultramic.2006.04.007
STANLEY R. DEANS: "The Radon Transform and Some of its Applications", 1983, KRIEGER PUBLICATIONS
ROBERT L. SIDDON: "Fast calculation of the exact radiological path for a three-dimensional CT array", MEDICAL PHYSICS, vol. 12, no. 2, 1985, pages 252 - 255, XP000577395, DOI: 10.1118/1.595715
SUNNEGARDH, J.DANIELSSON, P.-E.: "A New Anti-Aliased Projection Operator for Iterative CT Reconstruction", 9TH INTERNATIONAL MEETING OF FULLY THREE-DIMENSIONAL IMAGE RECONSTRUCTION IN RADIOLOGY AND NUCLEAR MEDICINE, 2009, pages 125 - 127
SERHAN O. ISIKAMWAHEB BISHARASAM MAVANDADIFRANK W. YUSTEVE FENGRANDY LAUAYDOGAN OZCAN: "Lens-free optical tomographic microscope with a large imaging volume on a chip", PNAS, vol. 108, no. 18, 3 May 2011 (2011-05-03), pages 7296 - 7301, XP055121935, Retrieved from the Internet
N. KAWASEM. KATOH. NISHIOKAH. JINNAI: "Transmission electron microtomography without the ''missing wedge'' for quantitative structural analysis", ULTRAMICROSCOPY, vol. 107, 2007, pages 8 - 15, XP005781314, DOI: 10.1016/j.ultramic.2006.04.007
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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