Three-dimensional magnetization-prepared imaging using a concentric cylinders trajectory

Kie Tae Kwon, Holden H. Wu, Taehoon Shin, Tolga Çukur, Michael Lustig, Dwight G. Nishimura

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Purpose To develop new magnetization-prepared imaging schemes based on a three-dimensional (3D) concentric cylinders trajectory. Methods The 3D concentric cylinders trajectory, which is robust to off-resonance effects and timing delays while requiring fewer excitations than a comparable 3D Cartesian (3DFT) sequence, is used as the readout for magnetization-prepared sequences exploiting its inherently centric-ordered structure. Two applications: (i) T1-weighted brain imaging with an inversion-recovery-prepared radiofrequency-spoiled gradient-echo (IR-SPGR) sequence, (ii) non-contrast-enhanced (NCE) peripheral angiography with a magnetization-prepared balanced steady-state free precession (bSSFP) sequence are presented to demonstrate the effectiveness of the proposed method. For peripheral angiography, the scan efficiency is further improved by interleaving different preparations at different rates and by carefully designing the sampling geometry for an efficient parallel imaging method. Results In vivo brain scans with an IR-SPGR sequence and lower extremity scans with a magnetization-prepared bSSFP sequence for NCE peripheral angiography both demonstrate that the proposed sequences with concentric cylinders effectively capture the transient magnetization-prepared contrast with faster scan times than a corresponding 3DFT sequence. The application of peripheral angiography also shows the feasibility of the proposed interleaving schemes and parallel imaging method. Conclusion The 3D concentric cylinders trajectory is a robust and efficient readout that is well-suited for magnetization-prepared imaging.

Original languageEnglish
Pages (from-to)1700-1710
Number of pages11
JournalMagnetic Resonance in Medicine
Issue number5
StatePublished - May 2014


  • 3D concentric cylinders
  • magnetization-prepared imaging
  • non-Cartesian trajectories


Dive into the research topics of 'Three-dimensional magnetization-prepared imaging using a concentric cylinders trajectory'. Together they form a unique fingerprint.

Cite this