Method and system for imaging a volume using a...

Details Method and system for imaging a volume using a... Method and system for imaging a volume using a...

2006-05-16

2006-05-16

Bruce, David V (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Tomography

C378S015000, C378S901000

Reexamination Certificate

active

07046759

ABSTRACT:
A technique is provided for improving the depth resolution of tomosynthesis images. The technique provides for the use of spiral scan trajectories. The X-ray source may moved along the spiral scan trajectory, acquiring projection data at various locations on the trajectory which are offset in the z-direction, i.e., in a direction perpendicular to the detector. Projection data acquired at different positions in the z-direction may be used to generate three-dimensional, tomosynthesis images having improved depth resolution.

REFERENCES:
patent: 2005/0265514 (2005-12-01), Sugihara et al.
Eberhard et al, “Method and System for Three Dimensional Tomosynthesis Imaging,” U.S. Appl. 10/739,541, filed Dec. 18, 2003.
J.T. Dobbins, et al, “Tomosynthesis for improved pulmonary nodule detection”, RSNA abstract No. 605, Vol. 290, pp. 280, 1998.
K.R. Maravilla, et al, “Digital Tomosynthesis: Technique for Electronic Reconstructive Tomography”, AJNR:4, pp.: 883-888, 1983.

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