scholarly journals Relaxation time of brain tissue in the elderly assessed by synthetic MRI

2021 ◽  
Author(s):  
Martin Ndengera ◽  
Bénédicte M. A. Delattre ◽  
Max Scheffler ◽  
Karl‐Olof Lövblad ◽  
Torstein R. Meling ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Brain Tissue ◽  
The Elderly ◽  
Synthetic Mri

scholarly journals The Effect of Intraventricular Hemorrhage on Brain Development in Premature Infants: A Synthetic MRI Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Chunxiang Zhang ◽  
Xin Zhao ◽  
Meiying Cheng ◽  
Kaiyu Wang ◽  
Xiaoan Zhang
Keyword(s):  
Relaxation Time ◽  
Premature Infants ◽  
Intraventricular Hemorrhage ◽  
Brain Volume ◽  
Relaxation Times ◽  
T2 Relaxation Time ◽  
T2 Relaxation ◽  
T1 And T2 ◽  
The Brain ◽  
Synthetic Mri

Objectives: Synthetic MRI can obtain multiple parameters in one scan, including T1 and T2 relaxation time, proton density (PD), brain volume, etc. This study aimed to investigate the parameter values T1 and T2 relaxation time, PD, and volume characteristics of intraventricular hemorrhage (IVH) newborn brain, and the ability of synthetic MRI parameters T1 and T2 relaxation time and PD to diagnose IVH.Materials and methods: The study included 50 premature babies scanned with conventional and synthetic MRI. Premature infants were allocated to the case group (n = 15) and NON IVH (n = 35). The T1, T2, PD values, and brain volume were obtained by synthetic MRI. Then we assessed the impact of IVH on these parameters.Results: In the posterior limbs of the internal capsule (PLIC), genu of the corpus callosum (GCC), central white matter (CWM), frontal white matter (FWM), and cerebellum (each p < 0.05), the T1 and T2 relaxation times of the IVH group were significantly prolonged. There were significant differences also in PD. The brain volume in many parts were also significantly reduced, which was best illustrated in gray matter (GM), cerebrospinal fluid and intracranial volume, and brain parenchymal fraction (BPF) (each p < 0.001, t = −5.232 to 4.596). The differential diagnosis ability of these quantitative values was found to be excellent in PLIC, CWM, and cerebellum (AUC 0.700–0.837, p < 0.05).Conclusion: The quantitative parameters of synthetic MRI show well the brain tissue characteristic values and brain volume changes of IVH premature infants. T1 and T2 relaxation times and PD contribute to the diagnosis and evaluation of IVH.

scholarly journals Effect of Gadolinium on the Estimation of Myelin and Brain Tissue Volumes Based on Quantitative Synthetic MRI

2018 ◽  
Vol 40 (2) ◽  
pp. 231-237 ◽  
Author(s):  
T. Maekawa ◽  
A. Hagiwara ◽  
M. Hori ◽  
C. Andica ◽  
T. Haruyama ◽  
...  
Keyword(s):  
Brain Tissue ◽  
Synthetic Mri

P2-161 Automated brain tissue assessment in the elderly and demented population: construction and validation of a sub-volume probabilistic brain atlas

2004 ◽  
Vol 25 ◽  
pp. S271 ◽  
Author(s):  
Michael S. Mega ◽  
Ivo I. Dinov ◽  
John C. Mazziotta ◽  
Mario Manese ◽  
Paul M. Thompson ◽  
...  
Keyword(s):  
Brain Tissue ◽  
The Elderly ◽  
Brain Atlas

scholarly journals Brain tissue volumes in the general population of the elderly

NeuroImage ◽  
2012 ◽  
Vol 59 (4) ◽  
pp. 3862-3870 ◽  
Author(s):  
Sigurdur Sigurdsson ◽  
Thor Aspelund ◽  
Lars Forsberg ◽  
Jesper Fredriksson ◽  
Olafur Kjartansson ◽  
...  
Keyword(s):  
General Population ◽  
Brain Tissue ◽  
The Elderly

Intracerebral pH affects the T2 relaxation time of brain tissue

2002 ◽  
Vol 44 (12) ◽  
pp. 968-972 ◽  
Author(s):  
Schilling A. ◽  
Blankenburg F. ◽  
Bernarding J. ◽  
Heidenreich J. ◽  
Wolf K.
Keyword(s):  
Relaxation Time ◽  
Brain Tissue ◽  
T2 Relaxation Time ◽  
T2 Relaxation
Sign in / Sign up

Export Citation Format

Share Document