3D image reconstruction method for use in computed tomography

Details 3D image reconstruction method for use in computed tomography 3D image reconstruction method for use in computed tomography

1999-01-22

2000-09-26

Bruce, David V.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 15, 378901, A61B 603

Patent

active

061251631

ABSTRACT:
In an image reconstruction method for 3-d image reconstruction, particularly a fast reconstruction method for rotational angiography employing a pyramidal X-ray beam and a surface detector, image reconstruction is accomplished in a computer using an algorithm of the filtered back-projection type, and, outside the zero component, the components of the convolution kernel correspond to an exponential function. A particularly fast image reconstruction is achieved with such a convolution kernel by using recursive filtering.

REFERENCES:
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"Practical Cone-Beam Algorithm," Feldkamp et al., J. Opt. Soc. Am., vol. 1, No. 6, Jun. 1984, pp. 612-619.
"Bildegebende Systeme fur die medizinische Diagnostik," Morneburg, Ed. (1995), pp. 62-67, 110-116, 137-138.
"Experimentelle Prozessanalyse," Wernstedt (1989), pp. 132-144.

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