Self-Gated Cardiac Cine Imaging Using Phase Information

Cited 3 time in webofscience Cited 0 time in scopus
  • Hit : 235
  • Download : 0
Purpose: To obtain multiphase cardiac cine images with high resolution, a novel self-gating method for both cardiac and respiratory motions is proposed. Methods: The proposed method uses the phase of projection data obtained from a separate axial slice to measure cardiac and respiratory motion, after the acquisition of every k-space line in the image plane. Cardiac motion is estimated from the phase of the projection data passing through the aorta, which is amplified by superior-inferior directional bipolar gradients, whereas respiratory motion is estimated from the phase of the left-right directional projection data of the abdomen. To verify the proposed self-gating method, a simulation and in vivo steady state free precession cardiac imaging were performed. Results: The proposed method provides high resolution multiphase cardiac cine images. Using the proposed self-gating method, the phase variation of the projection data offers information about cardiac and respiratory motions that is equivalent to external gating devices. Conclusion: The proposed method can capture time-resolved cardiac and respiratory motion from the phase information of the projection data. Because the projection data is obtained from a separate gating slice, the self-gating signals are not affected by imaging planes. (C) 2016 International Society for Magnetic Resonance in Medicine
Publisher
WILEY-BLACKWELL
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

HEART CORONARY MRA; WHOLE-HEART; RESPIRATORY MOTION; GATING TECHNIQUE; RADIAL SSFP; RECONSTRUCTION; ANGIOGRAPHY; ARTERIES; SENSE

Citation

MAGNETIC RESONANCE IN MEDICINE, v.77, no.3, pp.1216 - 1222

ISSN
0740-3194
DOI
10.1002/mrm.26204
URI
http://hdl.handle.net/10203/223501
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0