| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To allow correction of affection of a V-tilt in a detection panel for image signals obtained by a radiation CT apparatus which photographs a radiation image of a subject located on an axis of rotation while rotating a photographing part in which a radiation source and the detection panel are located face-to-face across the axis of rotation. <P>SOLUTION: It is taken into consideration that the subject extends to include a horizontal component on a three-dimensional radiation CT image when the V-tilt is generated on a detection panel 11. On the three-dimensional radiation CT image obtained by photographing a known form of a phantom, affection of the V-tilt of a radiation detecting means is estimated based on horizontal extensity of the form of the phantom to correct the image signals so as to reduce affection of the V-tilt. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
