| US 7,519,144 B2 | ||
| Multi-positional CT image producing method and X-ray CT apparatus | ||
| Akira Hagiwara, Tokyo (Japan) | ||
| Assigned to GE Medical Systems Global Technology Company, LLC, Waukesha, Wis. (US) | ||
| Filed on Dec. 20, 2004, as Appl. No. 11/17,014. | ||
| Claims priority of application No. 2003-423898 (JP), filed on Dec. 22, 2003. | ||
| Prior Publication US 2005/0135549 A1, Jun. 23, 2005 | ||
| Int. Cl. A61B 6/03 (2006.01) | ||
| U.S. Cl. 378—15 [378/4] | 19 Claims |
| 1. A multi-positional computed tomography (CT) image producing method comprising the steps of:
collecting data in a predetermined scan range using a helical scan that includes making a relative rotation of at least one
of an X-ray tube and a multi-row detector around a subject to be imaged while making a relative rectilinear motion of the
X-ray tube and the multi-row detector with respect to the subject to be imaged;
extracting data from detector rows corresponding to reconstruction planes at a plurality of positions to generate respective
data sets for a reconstruction, wherein all of the reconstruction planes are set in such a manner that the data of the detector
rows corresponding to the reconstruction planes are acquired at each view angle within a predetermined view range; and
producing respective CT images of the plurality of reconstruction planes based on the data sets.
|