X線CT装置
- 专利权人:
- ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
- 发明人:
- 西出 明彦,石原 陽太郎
- 申请号：
- JP2008003829
- 公开号：
- JP5317479B2
- 申请日:
- 2008.01.11
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of reducing the displacement of tomographic images with different X-ray tube voltages.
SOLUTION: The X-ray CT apparatus 100 includes an X-ray tube 21 for irradiating a subject with X rays having a first energy spectrum and X rays with a second energy spectrum an X-ray data collecting part 24 for collecting X-ray projection data an image reconstruction part 34 for reconstructing a first tomographic image and a second tomographic image a tomographic image displacement correction part 37 for finding the common center of gravity to the first tomographic image and the second tomographic image, finding the displacement between the first tomographic image and the second tomographic image based on the comparison with an object for comparison set in the direction radially extending from the center of gravity, and correcting at least either the first tomographic image or the second tomographic image based on the quantity of displacement and a dual energy image reconstruction means 35 for reconstructing a tomographic image of the information depending on the X-ray tube voltage based on the positioned first tomographic image and second tomographic image.
COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
