Invention Grant
- Patent Title: Method for joint arterial input function and tracer kinetic parameter estimation in accelerated DCE-MRI using a model consistency constraint
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Application No.: US16384795Application Date: 2019-04-15
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Publication No.: US11982726B2Publication Date: 2024-05-14
- Inventor: Krishna S. Nayak , Yannick Bliesener , Yi Guo , Yinghua Zhu , Sajan Goud Lingala , Robert Marc Lebel
- Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
- Applicant Address: US CA Los Angeles
- Assignee: University of Southern California
- Current Assignee: University of Southern California
- Current Assignee Address: US CA Los Angeles
- Agency: Brooks Kushman P.C.
- Main IPC: G01R33/563
- IPC: G01R33/563 ; A61B5/055 ; G01R33/56 ; A61K49/10 ; G01R33/28 ; G01R33/385

Abstract:
Tracer kinetic models are utilized as temporal constraints for highly under-sampled reconstruction of DCE-MRI data. In one embodiment, a method for improving dynamic contrast enhanced imaging. The method includes steps of administering a magnetic resonance contrast agent to a subject and then collecting magnetic resonance contrast agent from the subject. A tracer kinetic model (i.e. eTofts or Patlak) is selected to be applied to the magnetic resonance imaging data. The tracer kinetic model is applied to the magnetic resonance imaging data. Tracer kinetic maps and dynamic images are simultaneously reconstructed and a consistency constraint is applied. The proposed method allows for easy use of different tracer kinetic models in the formulation and estimation of patient-specific arterial input functions jointly with tracer kinetic maps.
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