X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1995-06-06
1996-12-24
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
36441314, 36441315, 36441310, 36441321, 378901, G01N 23083
Patent
active
055880339
ABSTRACT:
A method and apparatus for reconstructing a three dimensional image of an object from a plurality of two dimensional radiographic images includes the steps of performing radiography of the object from a point source to produce a two dimensional image on a film, backprojecting the two dimensional image through a reconstruction volume to the point source to produce a backprojected image, repeating these steps for a plurality of viewing angles and determining the intersection of the backprojected images and the reconstruction volume. This intersection defines a three dimensional, reconstructed image of the object for each view. Upon superimposition of these three dimensional reconstructed images, the voxels that all the images have in common define a final reconstructed image of the object. Additionally, the present invention includes a stereotactic localizer frame that has eight sides for providing at least four views of the object. The eight faces allow radiography of the object to be performed at almost any viewing angle. This method can be used in clinical applications for the reconstruction of three dimensional structures within the patient's body through multiple two dimensional radiographic views of the patient.
REFERENCES:
patent: Re30947 (1982-05-01), Boyd
patent: 4329588 (1982-05-01), Barrett et al.
patent: 4341220 (1982-07-01), Perry
patent: 4439866 (1984-03-01), Kato et al.
patent: 4608977 (1986-09-01), Brown
patent: 4618978 (1986-10-01), Cosman
patent: 5230623 (1993-07-01), Guthrie et al.
patent: 5333165 (1994-07-01), Sun
patent: 5442672 (1995-08-01), Bjorkholm et al.
Yeung et al., "Systematic Analysis of Errors in Target Localization and Treatment Delivery in Stereotactic Radiosurgery (SRS)", Int. J. Radiation Oncology Biol., Phys., vol. 28, pp. 493-498, 1993.
Bova et al., "Stereotaxic Angiography: An Inadequate Database for Radiosurgery?", Int. J. Radiation Oncology Biol., Phys., vol. 20, pp. 891-895, 1991.
Schad et al., "Correction of Spatial Distortion in Magnetic Resonance Angiography for Radiosurgical Treatment of Cerebral Arteriovenous Malformations", Magnetic Resonance Imaging, vol. 10, pp. 609-621, 1992.
Blatt et al., "Modifications Based on Computed Tomographic Imaging in Planning the Radiosurgical Treatment of Arteriovenous Malformations", Neurosurgery, vol. 33, No. 4, Oct. 1993.
Radionics brochure, "BRW Stereotactic System", 1988.
Radionics, Inc., Neurosurgical Instruments brochure, "Type SGV-AL Angiographic and X-Ray Localizer System", 1990.
"Instruction Manual and Service Manual for the Model BRW Brown-Roberts-Wells Stereotactic System", Radionics, Inc., Doc. No. BRW-MAN Rev. A, Dec. 1990.
R. Siddon et al., "Sereotaxic Localization of Intracranial Targets", Int. J. Radiation Oncology Biol., Phys., vol. 13, pp. 1241-1246, 1987.
W. Lutz et al., "A System for Stereotactic Radiosurgery With a Linear Accelerator", Int. J. Radiation Oncology Biol., Phys., vol. 14, pp. 373-381, 1988.
W. Saunders, "Radiosurgery for Arteriovenous Malformations of the Brain Using a Standard Linear Accelerator: Rational and Technique", Int. J. Radiation Oncology Biol., Phys., vol. 15, pp. 441-447, 1988.
R. Siddon, "Fast Calculation of the Exact Radiological Path For A Three-Dimensional CT Array", Med. Phys., 12(2), Mar./ Apr. 1985, pp. 252-255.
D. Vandermeulen et al., "A New Software Package for the Microcomputer Based BRW Stereotactic System: Integrated Stereoscopic Views of CT Data and Angiograms", SPIE, vol. 593, Medical Image Processing, 1985, pp. 103-114.
M. Bergstrom et al., "A Method of Stereotaxic Localization Adopted for Conventional and Digital Radiography", Neuroradiology, 1986, 28:100-104.
R. Siddon, "Solution to Treatment Planning Problems Using Coordinate Transformations", Med. Phys 8(6) Nov./Dec. 1981, pp. 766-774.
A. Rosenfield et al., Digital Picture Processing, 2 Ed. vol. 1, Chapter 8, Academic Press Inc., 1982, pp. 353-430.
S. Harrington, Computer Graphics: A Programming Approach, Chapter 3, McGraw-Hill International Book Company, 1983, pp. 59-81.
Bruce David Vernon
Porta David P.
St. Jude Children's Research Hospital
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