T2 relaxation times
T1rho and T2 relaxation times of the normal adult knee meniscus at 3T: analysis of zonal differences
... and T2 relaxation ...inT1rho relaxation time of the meniscus may represent the differences of proteoglycan composition which con- tributes to strength against compressive stress, since compressive ...
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Changes in T2 Relaxation Times Associated with Maturation of the Human Intervertebral Disk
... T2 relaxation times can be calculated from the change in signal intensity as a function of echo time ...disk T2 relaxation times in young sub- jects and compare relaxation ...
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T2 Relaxation Times Correlated with Stage of Lumbar Intervertebral Disk Degeneration and Patient Age
... sagittal T2 map acquisitions were imported into Matlab (Version ...The T2 relaxation time for each voxel was recorded as the negative inverse of the slope of the ...line. T2 relaxation ...
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Study of T1 and T2 relaxation times of the myocardium in normal subjects and myocardial infarction using multiparametric cardiac MRI
... Parametric myocardial mapping are noninvasive techniques, enabling direct quantitative analysis of tissue alterations of myocardium in cardiac diseases using cardiac MRI. Changes in the myocardial tissue can be ...
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The Value of T2 Relaxation Times to Characterize Lumbar Intervertebral Disks: Preliminary Results
... pose, T2 values of the lumbar intervertebral disks can be assessed ...The T2 values show regional variation, theoretically because of variations in water content across the ...The T2 values can be ...
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Reproducibility of T1 and T2 Relaxation Times Calculated from Routine MR Imaging Sequences: Phantom Study
... The 500/1500 msec TR sequence pair and the 1000/2000 TR sequence pairs are often clinically used in T1 calculations, but as is seen in figure 7 similarintensity errors will produce large[r] ...
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T1ρ and T2 Mapping of the Intervertebral Disk: Comparison of Different Methods of Segmentation
... and T2 relaxation times was also performed by using 3 circular ROIs (CROI) placed on the NP, anterior annulus fibrosus (AAF), and posterior annulus fibrosus (PAF) by using 3 distinct sagittal ...
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Fast T2 gradient spin echo (T2 GraSE) mapping for myocardial edema quantification: first in vivo validation in a porcine model of ischemia/reperfusion
... of T2-mapping sequences have been re- cently proposed as a route to overcoming some of these limitations [7–9] and providing absolute quantification of regional T2 relaxation times that can be ...
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MR of the spine with a fast T1 weighted fluid attenuated inversion recovery sequence
... fast T2-weighted FLAIR se- quences described ...echo times in an alternating fashion rendered this echo-to-view mapping scheme susceptible to phase-encoding ghosting and blurring ...the T2 ...
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MR Imaging of the Human Brain at 1 5 T: Regional Variations in Transverse Relaxation Rates in the Cerebral Cortex
... mean T2 relaxation times in one deep gray matter region, the caudate nucleus (CN), and nine cortical regions: primary auditory cortex (PAC), primary visual cortex (PVC), superior temporal gyrus ...
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Technique for measuring hippocampal T2 relaxation time
... echo times 19,95 and 19,133; and CSE 30,80 and 30,120. Hip- pocampal T2 relaxation times were obtained from a 5-mm section that was in the plane of the anterior brain ...hippocampal T2 ...
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MR imaging of orbital and ocular disease
... Orbital fat, optic nerve, muscle, and vitreous have widely disparate T1 and T2 relaxation times and resonating proton densities, thus yielding markedly different signal intensity profile[r] ...
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Age dependent changes in magnetization transfer contrast of white matter in the pediatric brain
... the T2 relaxation times during brain ...MR relaxation in tissue. The two major determinants of relaxation times in MR imaging are the tissue-water content and the degree and ...
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Comparison of the T2 Relaxation Time of the Temporomandibular Joint Articular Disk between Patients with Temporomandibular Disorders and Asymptomatic Volunteers
... the T2 relaxation time of the entire articular disk, the T2 relaxation times of the entire articular disk in the ADDWOR group, the severe joint effusion group, the ...
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MR detection of hippocampal disease in epilepsy: factors influencing T2 relaxation time
... RESULTS: In the 55 patients with partial epilepsy, hippocampal T2 relaxation times did not correlate with seizure frequency , duration of epilepsy , or age, but they were significantly m[r] ...
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Song_unc_0153D_18794.pdf
... 34 With the same exercise protocol (30 squat exercises), T2 mapping revealed increases in T2 relaxation times (+16.1%) within the talar cartilage. 130 Previous studies found US ima[r] ...
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Quantitative evaluation in combination with nonquantitative evaluation in early patellar cartilage osteoarthritis at 3.0 T
... T1 relaxation times through a study of 23 cadaveric patel- lae, and that no correlation was found between cartilage damage and T2 relaxation ...T1 relaxation times and MTR values ...
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High resolution NMR based approaches for facilitating chromatography method development
... the surface of the particle is contained within these pores, most of the analyte molecules are retained inside the particle rather than its surface. Additionally, the internal surface of the pores forms approximately 99% ...
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Examine of Dielectric Relaxation Times by Microwave Absorption and Correlation with NMR Spin Lattice Relaxation Times for Mixtures of Alcohols
... all these three solutes show that the molecular weight and size of Butanol molecules are greater than Ethanol and Propanol, which causes of greater hindrance of molecule 29 . According to Debye’s equation 26,27,36 , this ...
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Enhanced imaging of metallic knee prostheses by using a representative phantom
... The signal of the MRI is measured by induction. The signal is detected by a receiving coil. When no scanning is taking place, the net-magnetisation is aligned with the main magnetic field B or the Z-axis. The MRI coils ...
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