SPAMM, Cine Phase Contrast Imaging and Fast Spin-echo T2-weighted Imaging in the Study of Intracranial Cerebrospinal Fluid (CSF) Flow

2001 ◽  
Vol 56 (9) ◽  
pp. 763-772 ◽  
Author(s):  
S.E.J. Connor ◽  
R. O'Gorman ◽  
P. Summers ◽  
A. Simmons ◽  
E.M. Moore ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Phase Contrast ◽  
Spin Echo ◽  
Phase Contrast Imaging ◽  
Fast Spin Echo ◽  
Csf Flow ◽  
Contrast Imaging ◽  
Cine Phase Contrast ◽  
Fast Spin

scholarly journals Accelerated susceptibility-based positive contrast imaging of MR compatible metallic devices based on modified fast spin echo sequences

2017 ◽  
Vol 62 (7) ◽  
pp. 2505-2520 ◽  
Author(s):  
Caiyun Shi ◽  
Guoxi Xie ◽  
Yongqin Zhang ◽  
Xiaoyong Zhang ◽  
Min Chen ◽  
...  
Keyword(s):  
Spin Echo ◽  
Positive Contrast ◽  
Fast Spin Echo ◽  
Contrast Imaging ◽  
Fast Spin ◽  
Spin Echo Sequences

scholarly journals Outpacing movement — ultrafast volume coverage in neuropediatric magnetic resonance imaging

2020 ◽  
Vol 50 (12) ◽  
pp. 1751-1756
Author(s):  
Daniel Gräfe ◽  
Christian Roth ◽  
Margit Weisser ◽  
Matthias Krause ◽  
Jens Frahm ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
Turbo Spin Echo ◽  
Resonance Imaging ◽  
Clinical Issue ◽  
Conventional Mri ◽  
Mri Sequences ◽  
Fast Spin ◽  
Spin Echo Sequences

Abstract Background Conventional MRI sequences are often affected in neuropediatric imaging by unavoidable movements. Therefore, children younger than 6 years usually have to be examined under sedation/anesthesia. A new real-time MRI technique with automatic slice advancement allows for motion-robust T2-weighted volume coverage of the whole brain within a few seconds in adults. Objective To evaluate to which extent the new volume coverage method can be used to visualize cerebrospinal fluid and reduce the need for anesthesia in children. Materials and methods We assessed 30 children ages 6 years and younger with suspected or proven hydrocephalus, hygroma or macrocephalus using volume coverage sequences with 20 slices per second in three planes. If necessary, a parent was placed in the bore together with the child for calming and gentle immobilization. We compared visualization of cerebrospinal fluid spaces and course of the shunt catheter in volume coverage sequences vs. fast spin-echo sequences. Results The clinical issue could be sufficiently assessed in all children with use of volume coverage sequences, whereas conventional fast spin-echo sequences performed moderately to poorly. Visualization of the tip of a shunt failed in 16% of volume coverage scans and 27% of turbo spin-echo scans. A subsequent examination under anesthesia was never necessary. None of the examinations had to be stopped prematurely. Conclusion The motion-robust volume coverage sequences with T2-type contrast can be used to avoid sedation of children in the evaluation of cerebrospinal fluid spaces, even in the presence of vigorous motion. For other indications and contrasts, the technique must still be evaluated.

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