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TrueForm magnet design
TrueForm Technology
Ioannis Panagiotelis; Mathias Blasche
Siemens Healthcare, MR Marketing, Erlangen, Germany
TrueForm™ is a technological innovation introduced to enable full utilization of the 3T power without the usual limitations and compromises. TrueForm design has been employed in all the field generating hardware units of the system (magnet, gradient, RF) as well as in the operating software (acquisition, processing).
Shimming is integral for successful spectroscopy and this is especially the case for multi voxel CSI
TrueForm Retains the Spectral Integrity on the MAGNETOM Verio
Saadallah Ramadan1; Peter Stanwell1; Ravi Seethamraju2; Carolyn Mountford1
1 Centre for Clinical Spectroscopy, Department of Radiology, Brigham & Women’s Hospital, Boston, MA, USA
2 Siemens Medical Solutions, Burlington, MA, USA
It is well known that good quality spectra are dependent on the magnetic field homogeneity of the magnet. The field homogeneity, in turn, is dependant on the magnetic field strength, the bore design etc. In the case of the MAGNETOM® Verio, a 3T wide and shorter bore scanner, these factors are of concern for the spectroscopy community.
Abdominal flip angle map measured at 3T(Figure courtesy of Hans-Peter Faultz, Siemens)
Parallel Transmit Technology for High Field MRI
Lawrence L. Wald1, 2, 3; Elfar Adalsteinsson1, 3, 4
1Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
2Harvard Medical School, Boston, MA, USA
3Harvard-MIT Division of Health Sciences and Technology, Boston, MA, USA
4Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Boston, MA, USA
The success of parallel reconstruction methods and their impact on image encoding has sparked a great deal of interest in using the spatial distribution of transmit coils in an analogous fashion.
t2_tirm_tra_dark-fluid_p2; unfiltered; 3T 32-channel head coil
Fast Clinical Protocols at 1.5T and 3T with Matrix and 32-Channel Head Coils
Thomas Benner
Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
In routine clinical MR imaging, short scan times are advantageous for patient compliance, patient throughput and image quality (images are less likely to be affected by motion) but can usually only be achieved at the cost of spatial resolution, coverage or image quality i.e. lower signal-to-noise ratio (SNR).
2D FLASH of the abdomen on the same volunteer with different PAT factors using 32-channel coil
Large FOV Imaging at 3T with a 32-Channel Body Array Coil
Yutaka Natsuaki, Ph.D.; Gerhard Laub, Ph.D.
Siemens Medical Solutions, Inc., West Coast Team, MR R&D, Los Angeles, CA, USA
Parallel imaging techniques have developed very rapidly, and realization of their full potential has required the development of MR systems with up to 32 receive channels.
High resolution images acquired with the 32-channel coil, T1-weighted 3D MPRAGE (1 mm isotropic)
Improving High Resolution fMRI at 3T with the 32-Channel Head Array
Christina Triantafyllou1,2; Lawrence L. Wald2,3
1 Athinoula A. Martinos Imaging Center, McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
2 Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
3 Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
It is well known that BOLD (Blood Oxygenation Level Dependent) effects increase in amplitude at higher field strength, due to the general enhancement of susceptibility contrast resulting in improvements in BOLD sensitivity and specificity.
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