- Patent Title: Magnetic resonance method and apparatus for quantitative time-resolved assessment of tissue displacement and related biomarker parameters with blood suppression in the whole cardiac cycle
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Application No.: US15045281Application Date: 2016-02-17
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Publication No.: US10338179B2Publication Date: 2019-07-02
- Inventor: Xiaodong Zhong , John Oshinski , Deqiang Qiu , Amit Saindane
- Applicant: Siemens Healthcare GmbH , Emory University
- Applicant Address: DE Erlangen US GA Atlanta
- Assignee: Siemens Healthcare GmbH,Emory University
- Current Assignee: Siemens Healthcare GmbH,Emory University
- Current Assignee Address: DE Erlangen US GA Atlanta
- Main IPC: A61B5/055
- IPC: A61B5/055 ; G01R33/563 ; G01R33/56 ; A61B5/00 ; G01R33/561 ; G01R33/567

Abstract:
Embodiments relate to acquiring magnetic resonance (MR) images with suppressed residual blood signal in the early cardiac phases, leading to images with a preferred dark-blood appearance throughout the entire cardiac cycle, which improves accuracy of subsequent post-processing algorithms. The acquisition of the desired blood suppressed tissue images is achieved through a double inversion recovery pulse in DENSE sequences. The double inversion recovery pulse is applied after an electrocardiogram (ECG) trigger at a beginning point of a repetition time period, followed by a displacement encoding module at an inversion time during the repetition time period and a readout module comprised of a plurality of frames during a remainder of the repetition time period. The displacement encoding module applies a labelling process on the tissue, while the readout module applies an un-labelling process. The readout module comprises an imaging sequence adapted to acquire DENSE images.
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