X-ray imaging apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorsSatoru Ohishi, Masashi Hirose
Life of this patent
Estimating the term…
Abstract
An X-ray imaging apparatus includes a substantially C-arm, a support mechanism which rotatably supports substantially the C-arm, a rotation driving unit which drives rotation of substantially the C-arm, an X-ray tube mounted on substantially the C-arm, an X-ray detector mounted on substantially the C-arm, and a control unit which controls at least one of the rotation driving unit and an imaging control unit to make intervals between a plurality of contrast-enhanced images shorter than intervals between a plurality of mask images by changing a rotational speed of substantially the C-arm before and after injection of a contrast medium.
Claims20
An X-ray imaging apparatus comprising:
- a substantially C-arm;
- a support mechanism which rotatably supports substantially the C-arm;
- a rotation driving unit which drives rotation of substantially the C-arm;
- an X-ray tube mounted on substantially the C-arm;
- an X-ray detector mounted on substantially the C-arm;
- and
- a control unit which controls the rotation driving unit to make intervals between a plurality of contrast-enhanced images shorter than intervals between a plurality of mask images by changing a rotational speed of substantially the C-arm before and after injection of a contrast medium.
An X-ray imaging apparatus comprising:
- a substantially C-arm;
- a support mechanism which rotatably supports substantially the C-arm;
- a rotation driving unit which drives rotation of substantially the C-arm;
- an X-ray tube mounted on substantially the C-arm;
- an X-ray detector mounted on substantially the C-arm;
- and
- a control unit which controls the X-ray detector to make intervals between a plurality of contrast-enhanced images shorter than intervals between a plurality of mask images by changing an acquisition rate of the X-ray detector before and after injection of a contrast medium.
An X-ray imaging apparatus comprising:
- a substantially C-arm;
- a support mechanism which rotatably supports substantially the C-arm;
- a rotation driving unit which drives rotation of substantially the C-arm;
- an X-ray tube mounted on substantially the C-arm;
- an X-ray detector mounted on substantially the C-arm;
- and
- a control unit which controls the rotation driving unit and the X-ray detector to make intervals between a plurality of contrast-enhanced images shorter than intervals between a plurality of mask images.
An X-ray imaging apparatus comprising:
- a substantially C-arm;
- a support mechanism which rotatably supports substantially the C-arm;
- a rotation driving unit which drives rotation of substantially the C-arm;
- an X-ray tube mounted on substantially the C-arm;
- an X-ray detector mounted on substantially the C-arm;
- a control unit which controls the rotation driving unit and the X-ray detector to generate a plurality of mask images and a plurality of contrast-enhanced images before and after injection of a contrast medium;
- and
- a reconstruction unit which reconstructs a first three-dimensional image on the basis of difference images based on the plurality of mask images and several images of the plurality of contrast-enhanced images, and reconstructs a second three-dimensional on the basis of the plurality of contrast-enhanced images.
Dependencies are inferred from the claim text.