To facilitate specifying the degree of influence of gantry vibration on a reconstructed image and the cause of gantry vibration and a cause of the vibration of the cradle.
According to one embodiment, the X-ray CT scanner includes: a gantry unit including an X-ray source configured to irradiate an object with X-rays and an X-ray detector configured to detect X-rays transmitted through the object and configured to rotate the X-ray source and the X-ray detector while placing the X-ray source and the X-ray detector so as to make the X-ray source and the X-ray detector face each other; a reconstruction unit configured to generate reconstruction image data by using data acquired by the X-ray detector; an extraction unit configured to extract, when using a predetermined phantom as the object, pixel values of pixels existing on a locus surrounding a tomographic image of the phantom contained in reconstruction image data generated by the reconstruction unit based on data acquired by the X-ray detector; and an output unit configured to output an extraction result obtained by the extraction unit or information obtained based on the analysis of the extraction result.
TOSHIBA MEDICAL SYS CORP
| JP2004105382A | 2004-04-08 | |||
| JP2007215698A | 2007-08-30 | |||
| JP2004105382A | 2004-04-08 |
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori