X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1997-08-01
1998-12-08
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 15, 378901, A61B 603
Patent
active
058481176
ABSTRACT:
A method and apparatus for halfscan reconstruction in a CT scanning system using an asymmetric detector system are described. In halfscan asymmetric (HSA) reconstruction, a halfscan reconstruction approach is used for data acquired by the symmetric portion of the array, and a fullscan reconstruction approach is used to reconstruct data acquired by the asymmetric portion of the array. When scanning oversized subjects which extend beyond the symmetric field of view of the array, a halfscan reconstruction approach is used which applies a zero weighting to data acquired by the asymmetric portion of the array and ramps data acquired by the asymmetric portion to zero.
REFERENCES:
patent: 4637040 (1987-01-01), Sohval et al.
Dennis L. Parker, "Short scan convolution reconstruction for fanbeam CT", Med. Phys. 9(2), Mar./Apr. 1982, pp. 254-257.
Carl R. Crawford et al, "Computed tomography scanning with simultaneous patient translation" Med. Phys. 17(6), Nov./Dec. 1990, pp. 967-982.
Harish P. Hiriyannaiah, "X-ray Computed Tomography for Medical Imaging", Mar. 1997, pp. 42-59.
Crawford Carl R.
Ruth Christopher C.
Urchuk Steven N.
Analogic Corporation
Bruce David Vernon
Porta David P.
LandOfFree
Apparatus and method for computed tomography scanning using half does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for computed tomography scanning using half, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for computed tomography scanning using half will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-186303