| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of properly applying exposure reduction scanning in which X-ray output is made smaller only for the predetermined view angle than in usual scanning to a high-radiation-sensitive portion even if a scanning gantry is tilted. <P>SOLUTION: The X-ray CT apparatus includes: a first setting means for setting a range RD0 enveloping the desired portion 40a of a subject and in at least the body axis direction of the subject; a second setting means for setting a tilting angleαof the scanning gantry; and a third setting means for setting the conditions of exposure reduction scanning so that the desired portion 40a can be enveloped by a region DT of exposure reduction scanning when the scanning gantry is tilted at the tilting angleα, on the basis of the range RD0 set by the first setting means and the tilting angleαset by the second setting means. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
