X-ray computed tomography apparatus and image processing apparatus
First Claim
Patent Images
1. An X-ray computed tomography apparatus comprising:
- an X-ray tube which generates X-rays;
an X-ray detector which detects X-rays generated from the X-ray tube and transmitted through an object to be examined;
a rotating mechanism unit which continuously rotates the X-ray tube and the X-ray detector around the object;
a reconstruction unit which reconstructs a plurality of first volume data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector; and
an image processing unit which generates single second volume data set corresponding to one of a maximum value, an average value, a median value, and minimum value of the plurality of reconstructed first volume data sets in a temporal direction.
2 Assignments
0 Petitions
Accused Products
Abstract
An X-ray tube generates X-rays. An X-ray detector detects X-rays generated from the X-ray tube and transmitted through an object to be examined. A rotating frame continuously rotates the X-ray tube and the X-ray detector around the object. A reconstruction unit reconstructs a plurality of first volume data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector. An image processing unit generates single second volume data set corresponding to a maximum value, an average value, a median value, or minimum value of the plurality of reconstructed first volume data sets in the temporal direction.
19 Citations
15 Claims
-
1. An X-ray computed tomography apparatus comprising:
-
an X-ray tube which generates X-rays; an X-ray detector which detects X-rays generated from the X-ray tube and transmitted through an object to be examined; a rotating mechanism unit which continuously rotates the X-ray tube and the X-ray detector around the object; a reconstruction unit which reconstructs a plurality of first volume data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector; and an image processing unit which generates single second volume data set corresponding to one of a maximum value, an average value, a median value, and minimum value of the plurality of reconstructed first volume data sets in a temporal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An X-ray computed tomography apparatus comprising:
-
an X-ray tube which generates X-rays; an X-ray detector which detects X-rays generated from the X-ray tube and are transmitted through an object to be examined; a rotating mechanism unit which continuously rotates the X-ray tube and the X-ray detector around the object; a reconstruction unit which reconstructs a plurality of first volume data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector; and an image processing unit which generates single second volume set data by processing the plurality of reconstructed first volume data sets.
-
-
12. An X-ray computed tomography apparatus comprising:
-
an X-ray tube which generates X-rays; an X-ray detector which detects X-rays generated from the X-ray tube and are transmitted through an object to be examined; a rotating mechanism unit which continuously rotates the X-ray tube and the X-ray detector around the object; a first projection data generation unit which generates a plurality of first projection data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector; a second projection data generation unit which generates a single second projection data set corresponding to one of a maximum value, an average value, a median value, and a minimum value of the plurality of generated first projection data sets in a temporal direction; and a reconstruction unit which reconstructs volume data set on the basis of the generated second projection data set. - View Dependent Claims (13)
-
-
14. An image processing apparatus comprising:
-
a storage unit which stores a plurality of first volume data sets with different scan times for the same scan area of an object to be examined; and an image processing unit which generates single second volume data set corresponding to one of a maximum value, an average value, a median value, and a minimum value of the plurality of first volume data sets in a temporal direction.
-
-
15. An image processing apparatus comprising:
-
a storage unit which stores a plurality of first projection data sets with different scan times which are generated by continuously scanning the same scan area of an object to be examined; a projection data processing unit which generates a single second projection data set corresponding to one of a maximum value, an average value, a median value, and a minimum value of the plurality of first projection data sets in a temporal direction; and a reconstruction unit which reconstructs volume data set for the object on the basis of the generated second projection data set.
-
Specification