Abstract
Perfusion cardiac MRI (CMR) is a radiation-free and noninvasive imaging tool which has gained increasing interest for the diagnosis of coronary artery disease. However, resolution and coverage are limited in perfusion CMR due to the necessity of single snap-shot imaging during the first-pass of a contrast agent. Simultaneous multi-slice (SMS) imaging has the potential for high acceleration rates with minimal signal-to-noise ratio (SNR) loss. However, its utility in CMR has been limited to moderate acceleration factors due to residual leakage artifacts from the extra-cardiac tissue such as the chest and the back. Outer volume suppression (OVS) with leakage-blocking reconstruction has been used to enable higher acceleration rates in perfusion CMR, but suffers from higher noise amplification. In this study, we sought to augment OVS-SMS/MB imaging with a regularized leakage-blocking reconstruction algorithm to improve image quality. Results from highly-accelerated perfusion CMR show that the method improves upon SMS-SPIRiT in terms of leakage reduction and split slice (ss)-GRAPPA in terms of noise mitigation.
Original language | English |
---|---|
Title of host publication | ISBI 2020 - 2020 IEEE International Symposium on Biomedical Imaging |
Publisher | IEEE |
Pages | 1954-1957 |
Number of pages | 4 |
Volume | 2020-April |
ISBN (Electronic) | 9781538693308 |
DOIs | |
Publication status | Published - 2020 |
Event | 17th IEEE International Symposium on Biomedical Imaging - Iowa City, United States Duration: 3 Apr 2020 → 7 Apr 2020 Conference number: 17 |
Publication series
Name | Proceedings - International Symposium on Biomedical Imaging |
---|---|
Volume | 2020-April |
ISSN (Print) | 1945-7928 |
ISSN (Electronic) | 1945-8452 |
Conference
Conference | 17th IEEE International Symposium on Biomedical Imaging |
---|---|
Abbreviated title | ISBI 2020 |
Country/Territory | United States |
City | Iowa City |
Period | 3/04/20 → 7/04/20 |
Other | Virtual/online event due to COVID-19 |
Bibliographical note
Virtual/online event due to COVID-19Keywords
- accelerated MRI
- Magnetic resonance imaging
- myocardial perfusion
- outer volume suppression
- parallel imaging
- simultaneous multi-slice imaging