发明名称 |
An X-ray CT apparatus, a method for changing the helical pitch, an image reconstruction processing apparatus, an image reconstruction processing method, and an image reconstruction processing program |
摘要 |
<p>The X-ray CT apparatus that performs a scan after a pre-scan, comprising a reconstruction part reconstructing the pre-scan image of said subject to be examined from transmission data detected by said detector during said pre-scan, and also reconstructing the scan image of said subject to be examined from the transmission data detected by said detector during said scan; and a scan controlling part initiating a scan by directly changing the helical pitch of said bed from the stopped position for said pre-scan to the position toward an ending edge of the reconstruction area of the image. The scan controlling part initiates the scan at a first helical pitch by which X-rays for a predetermined number of views can be emitted at a starting edge of the reconstruction area of the image, and, after X-rays for the predetermined number of views is emitted, the scan at a second helical pitch continues.</p> |
申请公布号 |
EP1834585(A3) |
申请公布日期 |
2007.10.17 |
申请号 |
EP20070005283 |
申请日期 |
2007.03.14 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;TOSHIBA MEDICAL SYSTEMS CORPORATION |
发明人 |
NOSHI, YASUHIRO;MAEDA, TATSUO;OKUMURA, MIWA;TSUKAGOSHI, SHINSUKE |
分类号 |
A61B6/00;A61B6/03 |
主分类号 |
A61B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|