Wavelet-space correlation imaging for high-speed MRI without motion monitoring or data segmentation.
Wavelet-space correlation imaging for high-speed MRI without motion monitoring or data segmentation.
复制标题
DOI:
10.1002/mrm.25546
复制
发表时间:
2015-12
影响因子:
3.3
通讯作者:
Dumoulin, Charles
中科院分区:
文献类型:
--
作者:
Li, Yu;Wang, Hui;Tkach, Jean;Roach, David;Woods, Jason;Dumoulin, Charles
This study aims to 1) develop a new high-speed MRI approach by implementing correlation imaging in wavelet-space, and 2) demonstrate the ability of wavelet-space correlation imaging to image human anatomy with involuntary or physiological motion. Correlation imaging is a high-speed MRI framework in which image reconstruction relies on quantification of data correlation. The presented work integrates correlation imaging with a wavelet transform technique developed originally in the field of signal and image processing. This provides a new high-speed MRI approach to motion-free data collection without motion monitoring or data segmentation. The new approach, called “wavelet-space correlation imaging”, is investigated in brain imaging with involuntary motion and chest imaging with free-breathing. Wavelet-space correlation imaging can exceed the speed limit of conventional parallel imaging methods. Using this approach with high acceleration factors (6 for brain MRI, 16 for cardiac MRI and 8 for lung MRI), motion-free images can be generated in static brain MRI with involuntary motion and nonsegmented dynamic cardiac/lung MRI with free-breathing. Wavelet-space correlation imaging enables high-speed MRI in the presence of involuntary motion or physiological dynamics without motion monitoring or data segmentation.
登录
查看更多内容
影响因子:
3.3
作者:
Feng, Li;Srichai, Monvadi B.;Lim, Ruth P.;Harrison, Alexis;King, Wilson;Adluru, Ganesh;Dibella, Edward V. R.;Sodickson, Daniel K.;Otazo, Ricardo;Kim, Daniel
通讯作者:
Kim, Daniel
影响因子:
3.3
作者:
Huang, F;Akao, J;Limkeman, M
通讯作者:
Limkeman, M
影响因子:
3.3
作者:
Huang, Feng;Lin, Wei;Reykowski, Arne
通讯作者:
Reykowski, Arne
影响因子:
5
作者:
EHMAN, RL;MCNAMARA, MT;HIGGINS, CB
通讯作者:
HIGGINS, CB
影响因子:
2.6
作者:
Glover, Gary H.
通讯作者:
Glover, Gary H.