公开(公告)号：US11890125B2

公开(公告)日：2024-02-06

申请号：US17479645

申请日：2021-09-20

Applicant: Accuray, Inc.

Inventor： Jacob Shea ,  Brandon Frederick ,  Eric Schnarr ,  Daniel Gagnon

IPC: A61B6/00 ,  A61B6/02 ,  A61N5/10 ,  G06T11/00 ,  A61B6/03 ,  A61B6/06 ,  A61B6/08 ,  G06T7/30 ,  A61B6/04

CPC classification number: A61B6/5282 ,  A61B6/027 ,  A61B6/032 ,  A61B6/06 ,  A61B6/405 ,  A61B6/4078 ,  A61B6/4085 ,  A61B6/469 ,  A61B6/488 ,  A61B6/5205 ,  G06T11/005 ,  A61B6/025 ,  A61B6/03 ,  A61B6/035 ,  A61B6/0407 ,  A61B6/08 ,  A61B6/4014 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/4064 ,  A61B6/4435 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/481 ,  A61B6/482 ,  A61B6/483 ,  A61B6/484 ,  A61B6/541 ,  A61B6/582 ,  A61N5/107 ,  A61N5/1049 ,  A61N5/1067 ,  A61N5/1071 ,  A61N5/1082 ,  A61N2005/1085 ,  A61N2005/1091 ,  A61N2005/1095 ,  G06T7/30 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2210/41 ,  G06T2211/404 ,  G06T2211/412 ,  G06T2211/424 ,  G06T2211/428 ,  G06T2211/432

Abstract: A multimodal imaging apparatus, comprising a rotatable gantry system positioned at least partially around a patient support, a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation, a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level more than the first source of radiation, and a second radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the second source of radiation, and a processor configured to combine first measured projection data based on the radiation detected by the first detector with second measured projection data based on the radiation detected by the second detector, and reconstruct an image based on the combined data, wherein the reconstructing comprises at least one of correcting the second measured projection data using the first measured projection data, correcting the first measured projection data using the second projection data, and distinguishing different materials imaged in the combined data using the first measured projection data and the second measured projection.

公开(公告)号：US11154269B2

公开(公告)日：2021-10-26

申请号：US16694145

申请日：2019-11-25

Applicant: Accuray, Inc.

Inventor： Jacob Shea ,  Brandon Frederick ,  Eric Schnarr ,  Daniel Gagnon

IPC: A61B6/00 ,  A61B6/03 ,  A61B6/02 ,  G06T11/00 ,  A61B6/06 ,  A61N5/10 ,  A61B6/08 ,  G06T7/30 ,  A61B5/055 ,  A61B6/04

Abstract: Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV). Fast slip-ring technology and helical scans allow data from multiple sources of radiation to be combined or utilized to generate improved images and workflows, including for IGRT. Features include increasing the precision of spatial registrations between respective image sets to allow more precise radiation treatment delivery, reducing image artifacts (e.g., scatter, metal and beam hardening, image blur, motion, etc.), and utilization of dual energy imaging (e.g., for material separation and quantitative imaging, patient setup, online adaptive IGRT, etc.).

公开(公告)号：US20220000443A1

公开(公告)日：2022-01-06

申请号：US17479645

申请日：2021-09-20

Applicant: Accuray, Inc.

Inventor： Jacob Shea ,  Brandon Frederick ,  Eric Schnarr ,  Daniel Gagnon

IPC: A61B6/00 ,  G06T11/00 ,  A61B6/03 ,  A61B6/06 ,  A61B6/02

Abstract: A multimodal imaging apparatus, comprising a rotatable gantry system positioned at least partially around a patient support, a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation, a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level more than the first source of radiation, and a second radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the second source of radiation, and a processor configured to combine first measured projection data based on the radiation detected by the first detector with second measured projection data based on the radiation detected by the second detector, and reconstruct an image based on the combined data, wherein the reconstructing comprises at least one of correcting the second measured projection data using the first measured projection data, correcting the first measured projection data using the second projection data, and distinguishing different materials imaged in the combined data using the first measured projection data and the second measured projection.

公开(公告)号：US20200170598A1

公开(公告)日：2020-06-04

申请号：US16694145

申请日：2019-11-25

Applicant: Accuray, Inc.

Inventor： Jacob Shea ,  Brandon Frederick ,  Eric Schnarr ,  Daniel Gagnon

IPC: A61B6/00 ,  A61B6/03 ,  A61B6/02

Abstract: Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV). Fast slip-ring technology and helical scans allow data from multiple sources of radiation to be combined or utilized to generate improved images and workflows, including for IGRT. Features include increasing the precision of spatial registrations between respective image sets to allow more precise radiation treatment delivery, reducing image artifacts (e.g., scatter, metal and beam hardening, image blur, motion, etc.), and utilization of dual energy imaging (e.g., for material separation and quantitative imaging, patient setup, online adaptive IGRT, etc.).