Minimally Invasive Magnetic Resonance Imaging-Guided Free-Hand Aspiration of Symptomatic Nerve Route Compressing Lumbosacral Cysts Using a 1.0-Tesla Open Magnetic Resonance Imaging System

2011 ◽  
Vol 35 (1) ◽  
pp. 154-160 ◽  
Author(s):  
Maximilian de Bucourt ◽  
Florian Streitparth ◽  
Federico Collettini ◽  
Felix Guettler ◽  
Hendrik Rathke ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Minimally Invasive ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Resonance Imaging ◽  
Open Magnetic Resonance Imaging

Brain Tumor Surgery with the Toronto Open Magnetic Resonance Imaging System: Preliminary Results for 36 Patients and Analysis of Advantages, Disadvantages, and Future Prospects

Neurosurgery ◽  
2000 ◽  
Vol 46 (4) ◽  
pp. 900-909 ◽  
Author(s):  
Mark Bernstein ◽  
Abdul Rahman Al-Anazi ◽  
Walter Kucharczyk ◽  
Pirjo Manninen ◽  
Michael Bronskill ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Brain Tumor ◽  
Magnetic Resonance ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Tumor Surgery ◽  
Future Prospects ◽  
Resonance Imaging ◽  
Brain Tumor Surgery ◽  
Open Magnetic Resonance Imaging

Brain Tumor Surgery with the Toronto Open Magnetic Resonance Imaging System: Preliminary Results for 36 Patients and Analysis of Advantages, Disadvantages, and Future Prospects

Neurosurgery ◽  
2000 ◽  
Vol 46 (4) ◽  
pp. 900-909 ◽  
Author(s):  
Mark Bernstein ◽  
Abdul Rahman Al-Anazi ◽  
Walter Kucharczyk ◽  
Pirjo Manninen ◽  
Michael Bronskill ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Brain Tumor ◽  
Magnetic Resonance ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Tumor Surgery ◽  
Future Prospects ◽  
Resonance Imaging ◽  
Brain Tumor Surgery ◽  
Open Magnetic Resonance Imaging

5377679 Magnetic resonance imaging system

1995 ◽  
Vol 13 (6) ◽  
pp. VI-VII
Author(s):  
Machida Yoshio ◽  
Hatanaka Masahiko ◽  
Kitane Shinichi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Resonance Imaging

Pontine ataxic hemiparesis studied by a high-resolution magnetic resonance imaging system

1987 ◽  
Vol 21 (2) ◽  
pp. 204-207 ◽  
Author(s):  
Hidehiko Nabatame ◽  
Hidenao Fukuyama ◽  
Ichiro Akiguchi ◽  
Masakuni Kameyama ◽  
Kazumasa Nishimura ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Imaging System ◽  
Magnetic Resonance Imaging System ◽  
Resonance Imaging ◽  
Ataxic Hemiparesis

scholarly journals Numerical Analysis of a Flexible Dual Loop Coil and its Experimental Validation for pre-Clinical Magnetic Resonance Imaging of Rodents at 7 T

2016 ◽  
Vol 16 (6) ◽  
pp. 294-299 ◽  
Author(s):  
S. Solis-Najera ◽  
F. Vazquez ◽  
R. Hernandez ◽  
O. Marrufo ◽  
A.O. Rodriguez
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Imaging System ◽  
Ex Vivo ◽  
Small Animal ◽  
Magnetic Resonance Imaging System ◽  
External Diameter ◽  
Rf Coil ◽  
Resonance Imaging ◽  
Clinical Magnetic Resonance Imaging

Abstract A surface radio frequency coil was developed for small animal image acquisition in a pre-clinical magnetic resonance imaging system at 7 T. A flexible coil composed of two circular loops was developed to closely cover the object to be imaged. Electromagnetic numerical simulations were performed to evaluate its performance before the coil construction. An analytical expression of the mutual inductance for the two circular loops as a function of the separation between them was derived and used to validate the simulations. The RF coil is composed of two circular loops with a 5 cm external diameter and was tuned to 300 MHz and 50 Ohms matched. The angle between the loops was varied and the Q factor was obtained from the S11 simulations for each angle. B1 homogeneity was also evaluated using the electromagnetic simulations. The coil prototype was designed and built considering the numerical simulation results. To show the feasibility of the coil and its performance, saline-solution phantom images were acquired. A correlation of the simulations and imaging experimental results was conducted showing a concordance of 0.88 for the B1 field. The best coil performance was obtained at the 90° aperture angle. A more realistic phantom was also built using a formaldehyde-fixed rat phantom for ex vivo imaging experiments. All images showed a good image quality revealing clearly defined anatomical details of an ex vivo rat.

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