Respiratory- and cardiac-triggered three-dimensional sheath inked rapid acquisition with refocused echoes imaging (SHINKEI) of the abdomen for magnetic resonance neurography of the celiac plexus

European Radiology Experimental

卷:3

Ronald L. A. W. Bleys¹  Maarten S. van Leeuwen²  Lisanne Kok³  Clemens Bos³  Cyril J. Ferrer³  Lambertus W. Bartels³  Chrit T. W. Moonen³  Masami Yoneyama⁴  Makoto Obara⁴ 

[1] Department of Anatomy, University Medical Centre Utrecht, Utrecht University;

[2] Department of Radiology, University Medical Centre Utrecht, Utrecht University;

[3] Imaging Division, University Medical Center Utrecht, Utrecht University;

[4] Philips Japan;

关键词: Abdomen;    Celiac plexus;    Magnetic resonance imaging;    Organ motion;   

DOI  :  10.1186/s41747-019-0095-4

来源: DOAJ

【 摘 要 】

Abstract The visualisation of the celiac plexus using respiratory- and cardiac-triggered three-dimensional (3D) sheath inked rapid acquisition with refocused echoes imaging (SHINKEI) was evaluated. After ethical approval and written informed consent, eight volunteers (age 27 ± 5 years, mean ± standard deviation) were scanned at 1.5 and 3 T. Displacement of the celiac ganglia due to aortic pulsatility was studied on axial single-slice breath-hold balanced turbo field-echo cine sequences in five volunteers and found to be 3.0 ± 0.5 mm (left) and 3.1 ± 0.4 mm (right). Respiratory- and cardiac-triggered 3D SHINKEI images were compared to respiratory- and cardiac-triggered fat-suppressed 3D T2-weighted turbo spin-echo and respiratory-triggered 3D SHINKEI in all volunteers. Visibility of the celiac ganglia was rated by three radiologists as visible or non-visible. On 3D SHINKEI with double-triggering at 1.5 T, the left and right ganglia were seen by all observers in 7/8 and 8/8 volunteers, respectively. At 3 T, this was the case for 6/8 and 7/8 volunteers, respectively. The nerve-to-muscle signal ratio increased from 1.9 ± 0.5 on fat-suppressed 3D T2-weighted turbo spin-echo to 4.7 ± 0.8 with 3D SHINKEI. Anatomical validation was performed in a human cadaver. An expert in anatomy confirmed that the hyperintense structure visible on ex vivo 3D SHINKEI scans was the celiac plexus. In conclusion, double-triggering allowed visualisation of the celiac plexus using 3D SHINKEI at both 1.5 T and 3 T.

【 授权许可】

Unknown