Meeting Banner
Abstract #4320

5T cardiac cine imaging with selective PCA self-gating on normal and arrythmia subjects

Wenchao Yang1, Wenjian Liu2, and Peng Hu2,3,4
1Central Research Institute, United Imaging Healthcare, Shanghai, China, 2School of Biomedical Engineering, ShanghaiTech University, Shanghai, China, 3State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai, China, 4Shanghai Clinical Research and Trial Center, ShanghaiTech University, Shanghai, China

Synopsis

Keywords: Arrhythmia, Cardiovascular, cardiac and respiratory self-gating, arrhythmia, 5T, 2D cine

Motivation: ECG has poor performance at high field and does not directly measure mechanical cardiac motion and ECG gated Cardiac MR (CMR) scans fail on arrhythmia patients.

Goal(s): Our goal was to obtain the cardiac mechanical motion signal for arrhythmia cardiac cine imaging under free breathing at high field.

Approach: We applied the selective PCA method developed by us to 2D cine imaging, assigning arrhythmia cardiac k-space data based on the mechanical cardiac motion.

Results: The assigning of cardiac k-space data based on arrhythmia cardiac motion characteristics produced artifact-free 2D cine cardiac images, while the standard ECG-gating breath-hold technique resulted in severe artifacts.

Impact: The selective PCA method yields cardiac and respiratory signals in 2D CMR imaging, acting as surrogates for ECG and belts in CMR scans. The achieved cardiac mechanical motion aids cardiac cine imaging in arrhythmic subjects.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords