The GE 3T MR750 system is a 60-cm bore, clinically certified MRI system that is dedicated to research. This scanner is housed at the Froedtert Pavillion and operated by the Center for Imaging Research. Visit the CIR's equipment page for additional details about this system.
This resource mimics the spatial and aural environment of a functioning scanner. It is used for subject training and psychophysical studies. It is operated by the MCW General Clinical Research Center.
The Bruker BioSpec system has an actively shielded 9.4 Tesla magnet with a 31-cm warm bore. This system is operated by the Center for Imaging Research. Visit the CIR's equipment page for additional details about this system.
This instrument is a hybrid four-detector microSPECT with integrated X-ray CT module (FLEX Triumph [microSPECT/CT], Gamma Medica – Ideas).
The integrated cone-beam X-ray CT system is situated on same axis as the SPECT system, providing attenuation correction and co-registered X-ray CT and SPECT tomographic images. Technical features of the CT are as follows: The X-OT, CT sub-system, is equipped with an advanced CMOS digital X-ray detector technology and has the flexibility to perform a wide range of scanning. The X-OTM system allows researchers to image a large range of test subjects with its 9.3 cm diameter by 9.7 cm axial field of view, 118.4 mm x 112 mm X-ray CMOS detector with 368 x 2240 pixels and 50 μm pitch X-ray generator tunable from 50 to 80 kVp. Scout View for graphically assigning acquisition and reconstruction ROIs. Live Fluoro View for X-ray guided animal positioning. Delivered X-ray dose is < 2 cGy (continuous rotation mode). User selectable CT reconstruction options optimize soft tissue contrast or spatial resolution. User selectable X-ray detector binning from 1 x 1 to 4 x 4 optimize resolution and scanning speed. Acquisition graphical user interface displays projection data during a scan. User is able to select step or continuous rotation scan mode.
Features of the microSPECT scanner include broadband NaI(Tl) SPECT detectors with user interchangeable multipinhole aperture plates and parallel hole collimators, and volumetric reconstruction with various filtering/reconstruction algorithms. The multipinhole (5 pinholes per detector) SPECT imaging will enable a sensitivity level of greater than 1000 cps/MBq for dynamic studies of fast kinetic biological events. The multiplexed SPECT imaging with overlapping image projections on the detectors allows a maximized image magnification with sub-mm spatial resolution. The system has gated imaging and list-mode with dynamic imaging capabilities for quantitative SPECT imaging and dual- and multi-isotope studies.
Extensive electronic test equipment including:
- Agilent E5501B Phase Noise Measurement System
- HP3577A Network Analyzer (5 Hz–200 MHz)
- HP8510B Network Analyzer (10 MHz–20 GHz)
- HP8722D Network Analyzer (50 MHz–40 GHz)
- HP8566A Spectrum Analyzer (100 Hz–22 GHz)
- HP8596E Spectrum Analyzer (9 KHz–12.8 GHz)
- HP8564E Spectrum Analyzer (9KHz–40 GHz)
- HP54100A Digitizing Oscilloscope
- Frequency counters to 40 GHz
- Ansoft High Frequency Structure Simulator (HFSS)
- This state-of-the-art computer program running on an HP735 workstation is used for solution of Maxwell's equations. It permits objective (rather than intuitive) design of surface coils and may be useful for modeling rf field distributions in the brain during fMRI studies.