Image display apparatus and X-ray diagnostic apparatus
View Patent ↗In an image display apparatus of this invention, an image creation unit creates a plurality of cross-sectional images and a projected image from the volume data acquired at a CT volume data acquisition unit. The plurality of cross-sectional images and projected image are displayed on a monitor. When a specific point on the plurality of cross-sectional images displayed on the monitor is clicked at an operation unit, a line is displayed on the projected image displayed on the monitor according to the click.
1. An image display apparatus, comprising:
a volume data acquisition unit which acquires volume data;
an extraction unit which extracts a tubular object region from the volume data;
a cross-sectional image creation unit which creates a plurality of cross-sectional images perpendicular to a center line of the extracted tubular object region;
a projected image creation unit which creates a projected image;
a display which displays said plurality of cross-sectional images and the projected image;
a specification unit which specifies a respective arbitrary point on each of the plurality of cross-sectional images displayed on the display; and
a controller which, according to the arbitrary points specified by the specification unit, superimposes at least two curved lines, including a planned wire line and a center line of the tubular object region, on the projected image on the display, wherein when a blood vessel center line and a planned wire line overlap with each other, the controller is configured to cause the blood vessel center line and the planned wire line to be displayed in such a manner that the blood vessel center line or the planned wire line closer to a viewpoint appears above the blood vessel center line or the planned wire that is farther from the viewpoint.
2. The image display apparatus according to claim 1 , wherein the projected image creation unit creates a projected image from the volume data acquired by the volume data acquisition unit.
3. The image display apparatus according to claim 1 , wherein the projected image creation unit creates a projected image from X-ray projected data.
4. The image display apparatus according to claim 1 , wherein the controller displays a line existing closer to the view point above the other lines on the projected image displayed on the display.
5. The image display apparatus according to claim 1 , wherein the controller displays the lines in different colors, different types, or different thicknesses on the projected image displayed on the display.
6. An image display apparatus, comprising:
a volume data acquisition unit which acquires volume data;
an extraction unit which extracts a tubular object region from the volume data;
a cross-sectional image creation unit which creates a plurality of cross-sectional images perpendicular to a center line of the extracted tubular object region;
a projected image creation unit which creates a projected image from the volume data;
a display which displays said plurality of cross-sectional images and the projected image;
a specification unit which specifies a specific point on the projected image displayed on the display; and
a controller which, according to the specific point specified by the specification unit, displays a line on one of the cross-sectional images displayed on the display, the line being a projected line connecting the specific point and a position of an X-ray source.
7. The image display apparatus according to claim 6 , wherein the projected image creation unit creates the projected image from the volume data acquired by the volume data acquisition unit.
8. The image display apparatus according to claim 6 , wherein the projected image creation unit creates the projected image from X-ray projected data.
9. The image display apparatus according to claim 6 , wherein the controller displays at least two arbitrary points on the one of the cross-sectional images displayed on the display.
10. The image display apparatus according to claim 9 , wherein the controller displays the at least two arbitrary points in different colors, different types, or different sizes on the one of the cross-sectional images displayed on the display.
11. An image display apparatus, comprising:
a volume data acquisition unit which acquires volume data;
an extraction unit which extracts a tubular object region from the volume data;
a cross-sectional image creation unit which creates a cross-sectional image perpendicular to a center line of the extracted tubular object region;
a computing unit which calculates a projected line in a radiation direction on the cross-sectional image created by the cross-sectional image creation unit and calculates a portion of the projected line that intersects the cross-sectional image;
a projected image creation unit which creates a projected image from the volume data acquired by the volume data acquisition unit; and
a display which displays the cross-sectional image and the projected image,
wherein the display displays the portion of the projected line that intersects the cross-sectional image on the cross-sectional image.
12. The image display apparatus according to claim 11 , wherein the display displays radiant lines on the cross-sectional image.
13. The image display apparatus according to claim 11 , further comprising a specification unit which specifies a specific point on the cross-sectional image displayed on the display,
wherein the display displays a projected image viewed from the specific point specified by the specification unit.