» Articles » PMID: 22127845

On Improving the Speed and Reliability of T2-relaxation-under-spin-tagging (TRUST) MRI

Overview
Journal Magn Reson Med
Publisher Wiley
Specialty Radiology
Date 2011 Dec 1
PMID 22127845
Citations 48
Authors
Affiliations
Soon will be listed here.
Abstract

A T(2) -relaxation-under-spin-tagging technique was recently developed to estimate cerebral blood oxygenation, providing potentials for noninvasive assessment of the brain's oxygen consumption. A limitation of the current sequence is the need for long repetition time, as shorter repetition time causes an over-estimation in blood R(2). This study proposes a postsaturation T(2)-relaxation-under-spin-tagging by placing a nonselective 90° pulse after the signal acquisition to reset magnetization in the whole brain. This scheme was found to eliminate estimation bias at a slight cost of precision. To improve the precision, echo time of the sequence was optimized and it was found that a modest echo time shortening of 3.4 ms can reduce the estimation error by 49%. We recommend the use of postsaturation T(2)-relaxation-under-spin-tagging sequence with a repetition time of 3000 ms and a echo time of 3.6 ms, which allows the determination of global venous oxygenation with scan duration of 1 min 12 s and an estimation precision of ± 1% (in units of oxygen saturation percentage).

Citing Articles

Recent Advances in MR Imaging-based Quantification of Brain Oxygen Metabolism.

Wehrli F Magn Reson Med Sci. 2024; 23(3):377-403.

PMID: 38866481 PMC: 11234951. DOI: 10.2463/mrms.rev.2024-0028.


Comparison of cerebral oxygen extraction fraction using ASE and TRUST methods in patients with sickle cell disease and healthy controls.

Fellah S, Ying C, Wang Y, Guilliams K, Fields M, Chen Y J Cereb Blood Flow Metab. 2024; 44(8):1404-1416.

PMID: 38436254 PMC: 11342725. DOI: 10.1177/0271678X241237072.


VICTR: Venous transit time imaging by changes in T relaxation.

Shi W, Jiang D, Hu Z, Yedavalli V, Ge Y, Moghekar A Magn Reson Med. 2024; 92(1):158-172.

PMID: 38411277 PMC: 11055660. DOI: 10.1002/mrm.30051.


Toward vendor-independent measurement of cerebral venous oxygenation: Comparison of TRUST MRI across three major MRI manufacturers and association with end-tidal CO.

Eldirdiri A, Zhuo J, Lin Z, Lu H, Gullapalli R, Jiang D NMR Biomed. 2023; 36(10):e4990.

PMID: 37315951 PMC: 10801912. DOI: 10.1002/nbm.4990.


Review of the Research Progress of Human Brain Oxygen Extraction Fraction by Magnetic Resonance Imaging.

Jian Z, Wang X, Tian M, Liu Y, Yao H, Gong L Oxid Med Cell Longev. 2022; 2022:4554271.

PMID: 36304964 PMC: 9596244. DOI: 10.1155/2022/4554271.


References
1.
Fernandez-Seara M, Techawiboonwong A, Detre J, Wehrli F . MR susceptometry for measuring global brain oxygen extraction. Magn Reson Med. 2006; 55(5):967-73. DOI: 10.1002/mrm.20892. View

2.
Xu F, Uh J, Brier M, Hart Jr J, Yezhuvath U, Gu H . The influence of carbon dioxide on brain activity and metabolism in conscious humans. J Cereb Blood Flow Metab. 2010; 31(1):58-67. PMC: 3049465. DOI: 10.1038/jcbfm.2010.153. View

3.
Lu H, Zhao C, Ge Y, Lewis-Amezcua K . Baseline blood oxygenation modulates response amplitude: Physiologic basis for intersubject variations in functional MRI signals. Magn Reson Med. 2008; 60(2):364-72. PMC: 2597505. DOI: 10.1002/mrm.21686. View

4.
van Osch M, Teeuwisse W, van Walderveen M, Hendrikse J, Kies D, van Buchem M . Can arterial spin labeling detect white matter perfusion signal?. Magn Reson Med. 2009; 62(1):165-73. DOI: 10.1002/mrm.22002. View

5.
Bolar D, Rosen B, Sorensen A, Adalsteinsson E . QUantitative Imaging of eXtraction of oxygen and TIssue consumption (QUIXOTIC) using venular-targeted velocity-selective spin labeling. Magn Reson Med. 2011; 66(6):1550-62. PMC: 3217089. DOI: 10.1002/mrm.22946. View