US 12,412,322 B2
X-ray diagnostic apparatus causes x-ray detector to read a signal in non-destructive readout and to read a signal in destructive readout and generates first and second projections data, and non-transitory computer-readable storage medium
Jumpei Ogasawara, Nasushiobara (JP); Kunio Shiraishi, Otawara (JP); Hajime Yoshida, Nasushiobara (JP); Akihito Takahashi, Nasushiobara (JP); and Yasuto Hayatsu, Otawara (JP)
Assigned to Canon Medical Systems Corporation, Otawara (JP)
Filed by Canon Medical Systems Corporation, Otawara (JP)
Filed on Mar. 28, 2023, as Appl. No. 18/191,166.
Claims priority of application No. 2022-056440 (JP), filed on Mar. 30, 2022.
Prior Publication US 2023/0351647 A1, Nov. 2, 2023
Int. Cl. A61B 6/00 (2024.01); G06T 11/00 (2006.01)
CPC G06T 11/005 (2013.01) [A61B 6/4441 (2013.01); G06T 2207/10116 (2013.01); G06T 2210/41 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An X-ray diagnostic apparatus comprising processing circuitry configured to:
cause an X-ray detector to read a signal in a non-destructive readout before termination of X-ray exposure, the signal being accumulated in an X-ray detection element;
cause the X-ray detector to read the signal in a destructive readout after termination of X-ray exposure;
acquire first projection data generated based on the signal read in the non-destructive readout and acquire second projection data generated based on the signal read in the destructive readout;
estimate, based on the second projection data, a saturation region in which saturation is occurring; and
replace a signal in the saturation region of the second projection data with a signal in the saturation region of the first projection data.