Wettability, Saturation, and Viscosity Using the Magnetic Resonance Fluid Characterization Method and New Diffusion-Editing Pulse Sequences

2002 ◽  
Author(s):  
R. Freedman ◽  
N. Heaton ◽  
M. Flaum ◽  
G.J. Hirasaki ◽  
C. Flaum ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Fluid Characterization ◽  
Diffusion Editing

Evaluation of pulse sequences used for magnetic resonance sialography

2001 ◽  
Vol 30 (5) ◽  
pp. 276-284 ◽  
Author(s):  
M Sakamoto ◽  
T Sasano ◽  
S Higano ◽  
S Takahashi ◽  
T Nagasaka ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Magnetic Resonance Sialography

Symmetry principles for the design of radiofrequency pulse sequences in the nuclear magnetic resonance of rotating solids

2000 ◽  
Vol 321 (3-4) ◽  
pp. 205-215 ◽  
Author(s):  
Marina Carravetta ◽  
Mattias Edén ◽  
Xin Zhao ◽  
Andreas Brinkmann ◽  
Malcolm H Levitt
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Symmetry Principles ◽  
Radiofrequency Pulse ◽  
Nuclear Magnetic

scholarly journals Construction of two qutrit entanglement by using magnetic resonance selective pulse sequences

2016 ◽  
Vol 766 ◽  
pp. 012014 ◽  
Author(s):  
Sevcan Çorbaci ◽  
Mikail Doğuş Karakaş ◽  
Azmi Gençten
Keyword(s):  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Selective Pulse

scholarly journals ROLE OF DIFFERENT PULSE SEQUENCES FOR BETTER CONTRAST USING MAGNETIC RESONANCE IMAGING.

2017 ◽  
Vol 5 (2) ◽  
pp. 226-232
Author(s):  
Aalia Nazir ◽  
◽  
MuhammadWaqas Akhtar ◽  
Zahida Batool. ◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Resonance Imaging

AB1098 STRUCTURAL ELEMENTS OF THE KNEE ENTHESES ASSESSED IN HEALTHY SUBJECTS WITH ULTRA HIGH FIELD MRI (150 MICRONS).

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1838-1838
Author(s):  
D. Roche ◽  
C. Michel ◽  
P. Daudé ◽  
A. Le Troter ◽  
C. Chagnaud ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Healthy Subjects ◽  
High Field ◽  
T2 Mapping ◽  
Pulse Sequences ◽  
Structural Elements ◽  
Resonance Imaging ◽  
Ultra High Field ◽  
Mineralized Zone

Background:Fibrocartilaginous enthesis is composed of different histological zones which are commonly referred to the tendon distal extremity (a lamellar tissue with a low cell density, collagen and connective tissue), the fibrocartilaginous zone (with chondrocytes), a progressively mineralized zone and the bone. The MRI visualization of the water content of entheses is challenging given the very short relation time so that entheses has been very poorly assessed using MRI (1).Objectives:The main objective of the study was to assess the structural elements of the knee enthesis based on the quantitative T2* measurements using Ultra High Field (UHF) MRI.Methods:Twelve healthy subjects without any osteoarticular pathology were included in the study after they provided their informed consent. 3D gradient echo sequence with a 4.3 ms echo time and T2* mapping were performed. The lateral internal, external and crossed ligaments, patellar and quadricipital tendons were assessed. T2* measurements were performed specifically on the quadricipital tendon.Results:The quadricipital tendon and the bone trabeculation could be visualized on the UHF MR image. The T2* mapping analysis illustrated a large value (16.4 ± 4 ms) for the subchondral bone and much lower values for the trabecular bone (11 ± 4.5 ms) and the different zones of the keen entheses (7.7 ± 1.9 ms).Conclusion:Based on T2* measurements performed using UHF MRI, the different structural elements of the knee entheses were distinguished. This quantitative stratification could be used to assess changes in pathological conditions such as SpA and trauma.References:[1]Benjamin M, Bydder GM. Magnetic resonance imaging of entheses using ultrashort TE (UTE) pulse sequences. Journal of magnetic resonance imaging: JMRI. 2007;25(2):381-9.Disclosure of Interests:None declared

scholarly journals Dilated Virchow–Robin Spaces Mimicking a Brainstem Arteriovenous Malformation

2017 ◽  
Vol 08 (02) ◽  
pp. 291-293 ◽  
Author(s):  
Thomas J. Buell ◽  
Arjun Ramesh ◽  
Dale Ding ◽  
Daniel M. S. Raper ◽  
Ching-Jen Chen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arteriovenous Malformation ◽  
Arteriovenous Malformations ◽  
Pulse Sequences ◽  
Resonance Imaging ◽  
Unique Case ◽  
Cystic Neoplasms ◽  
Imaging Characteristics ◽  
Magnetic Resonance Imaging Mri

ABSTRACTVirchow–Robin spaces (VRS) are ubiquitous and commonly observed as the resolution of magnetic resonance imaging (MRI) continues to improve. The function of VRS and the etiology of their dilation is still a subject of research. Diagnosing dilated VRS (dVRS) can be challenging because they may appear similar to other pathologies such as cystic neoplasms, infectious cysts, and even arteriovenous malformations (AVMs) on certain MRI pulse sequences. We reported a unique case of brainstem dVRS mimicking an AVM. Furthermore, the extensive pontine involvement of our patient’s lesion is rarely described in neurosurgical literature. Understanding the imaging characteristics of dVRS is critical to accurately diagnose these lesions and avoid unnecessary tests and procedures.

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