Computed tomography system and method for image improvement using prior image

YU Zhicong, D Gagnon - US Patent 11,337,668, 2022 - Google Patents
A computed tomography (CT) system and method is pro vided. The CT system used to carry
out an image improvement method in which a prior or previously-ac quired patient image …

Multimodal radiation apparatus and methods

J Shea, B Frederick, E Schnarr, D Gagnon - US Patent 11,154,269, 2021 - Google Patents
US11154269B2 - Multimodal radiation apparatus and methods - Google Patents
US11154269B2 - Multimodal radiation apparatus and methods - Google Patents …

Radiation image processing device, method, and program configured to eliminate scattered radiation based on a virtual grid characteristic

T Kawamura - US Patent 10,617,378, 2020 - Google Patents
When performing processing for eliminating scattered radia tion included in radiation
transmitted through a subject on a radiation image captured by irradiating the subject with …

Apparatus and methods for scalable field of view imaging using a multi-source system

D Gagnon, YU Zhicong, J Shea - US Patent 11,413,002, 2022 - Google Patents
Multimodal imaging apparatus and methods include a rotat able gantry system with multiple
sources of radiation com prising different energy levels (for example, kV and MV). Fast slip …

Rotary collimator for determining the position of an element provided with sensors in an x-ray imaging system

Y Grondin, P Augerat, P Cinquin, L Desbat… - US Patent …, 2020 - Google Patents
With such a layout of the collimator, it is possible to The present invention pertains to the
field of X-ray successively mask then expose an X-ray source in front of imaging, and more …

Systems and methods for determining at least one artifact calibration coefficient

FU Jianwei - US Patent 10,922,855, 2021 - Google Patents
(57) ABSTRACT A method for determining at least one artifact calibration coefficient is
provided. The method may include obtaining preliminary projection values of a first object …

Multimodal radiation apparatus and methods

C Bai, YU Zhicong, C Miao - US Patent 11,794,039, 2023 - Google Patents
US11794039B2 - Multimodal radiation apparatus and methods - Google Patents
US11794039B2 - Multimodal radiation apparatus and methods - Google Patents …

Radiotherapy apparatus and methods for treatment and imaging using hybrid MeV-keV, multi-energy data acquisition for enhanced imaging

P La Riviere, D Gagnon, YU Zhicong, J Bertini… - US Patent …, 2023 - Google Patents
2022-07-08 Assigned to THE UNIVERSITY OF CHICAGO, ACCURAY, INC. reassignment
THE UNIVERSITY OF CHICAGO ASSIGNMENT OF ASSIGNORS INTEREST (SEE …

Sparse background measurement and correction for improving imaging

C Bai, R Zahn, D Gagnon, A Jain, YU Zhicong… - US Patent …, 2023 - Google Patents
Disclosed herein is an imaging system including a first x-ray source configured to produce
first x-ray photons in a first energy range suitable for imaging, project the first x-ray photons …

Anchored kernel scatter estimate

J Shea, C Bai - US Patent 11,605,186, 2023 - Google Patents
US11605186B2 - Anchored kernel scatter estimate - Google Patents US11605186B2 - Anchored
kernel scatter estimate - Google Patents Anchored kernel scatter estimate Download PDF Info …