公开(公告)号：US11179127B2

公开(公告)日：2021-11-23

申请号：US16672336

申请日：2019-11-01

Applicant: GE Precision Healthcare LLC

Inventor： Michael Sarju Vaz ,  Nitya Talasila ,  Bradley Gabrielse ,  Ryan Forbes ,  David Joseph Pitterle

IPC: A61B6/00 ,  A61B6/03 ,  G06T7/00 ,  G06T11/00

Abstract: Methods and systems are provided for adaptive scan control. In one embodiment, a method includes, upon an injection of a contrast agent, performing a plurality of perfusion acquisitions of a first anatomical region of interest (ROI) of a subject with the imaging system, processing projection data of the first anatomical ROI obtained from the plurality of perfusion acquisitions to measure a contrast signal of the contrast agent, performing a plurality of angiography acquisitions, each angiography acquisition performed at a respective time determined based on the contrast signal, and performing one or more additional perfusion acquisitions between each angiography acquisition.

公开(公告)号：US20210153830A1

公开(公告)日：2021-05-27

申请号：US16698291

申请日：2019-11-27

Applicant: GE Precision Healthcare LLC

Inventor： Michael Sarju Vaz ,  Bradley J. Gabrielse ,  Ryan C. Forbes ,  John Fusco ,  David Joseph Pitterle ,  John Howard Londt ,  Xiaoqing Guo

IPC: A61B6/00 ,  G06N20/00 ,  G06T7/00

Abstract: Methods and systems are provided for adaptive scan control. In one embodiment, a method includes, upon an injection of a contrast agent, initiating a contrast scan of a subject according to a fallback scan prescription, processing acquired projection data of an anatomical region of interest (ROI) of the subject to measure a contrast signal of the contrast agent, identifying a peak in the contrast signal within a predetermined time frame, if the peak in the contrast signal is not identified within the predetermined time frame, updating the fallback scan prescription to generate an adapted scan prescription for the contrast scan based on the contrast signal, and performing a remainder of the contrast scan according to the adapted scan prescription, and if the peak in the contrast signal is not identified within the predetermined time frame, continuing the remainder of the contrast scan according to the fallback scan prescription.