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Siemens Trio 3T MRI scanner
Full body scanner with Sonata Gradient Set
60cm bore is 1.8 meters long
200mT/M/S maximum slew rate
40mT/M maximum amplitude
35KW RF amplifier
Water-Cooled gradients
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CBIC 3T Siemens Human Subjects Laboratory:
Siemens Trio 3 Tesla Moore Foundation MR scanner: Full Body system with Sonata Gradient set (gradient amplitude of 40mT/m, and maximum slew rate of 200T/m/sec. with minimum gradient rise time of 200 microseconds). The scanner is 1.8m in length and has a bore size of 60cm. The Siemens Trio is equipped with 16 RF channel receivers accommodating up to 16 element array coils.
Software packages include: BOLD, 3D, MRA, Spectroscopy, and Cardiac processing in addition to full complement of routine scan techniques (Syngo v25a Siemens software level). Other features include Hyperscan for reduced SAR during FSE imaging, SE and GRE EPI, Diffusion and DTI, MPRAGE, FLAIR, TOF and PC MRA. Caltech has an IDEA license agreement that allows trained users to develop improved and novel imaging pulse sequences.
Available coils: CP transmit/receive head coil from Siemens, 8 Channel head array from Siemens/MRI Devices, 8 channel cardiac array from Siemens, 8 channel visual array from Nova Medical, 7 cm surface coil from Nova Medical, TEM transmit/receive head coil from MR Instruments.
Functional Imaging Accessories: 2,4 and 5-button response pads from Current Designs and Rowland, fiber optic joystick and trackball from Current Designs, video display goggles from Resonance Technologies with eyetracking using Arrington Research software, ASL eyetracker, stereo headphones from MR Confon, Infocus projector with several screen options, MRI-compatible EEG from Neuroscan, physiologic monitoring from Invivo, Brainsight stereotactic system.
Image acquisition options: Respiratory Gating. Scans can be designed to collect data only when a subject is at a particular part of the respiratory cycle to help reduce motion. Cardiac Gating. Moving heart muscle and flowing blood in major vessels can cause motion artifacts on MR images. By timing the period of data collection to coincide with the quiet phase of the cardiac cycle, these artifacts can be eliminated or reduced. Rapid acquisition Breathhold techniques can be used to eliminate respiratory motion for short duration 2D anatomical scans. These scans are commonly used when imaging the abdomen and thorax.
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