Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph

C. Woody; D. Schlyer; P. Vaska; D. Tomasi; S. Solis-Najera; W. Rooney; J. F. Pratte; S. Junnarkar; S. Stoll; Z. Master; M. Purschke; S. J. Park; S. Southekal; A. Kriplani; S. Krishnamoorthy; S. Maramraju; P. O'Connor; V. Radeka

doi:10.1016/j.nima.2006.10.039

Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph

C. Woody, D. Schlyer, P. Vaska, D. Tomasi, S. Solis-Najera, W. Rooney, J. F. Pratte, S. Junnarkar, S. Stoll, Z. Master, M. Purschke, S. J. Park, S. Southekal, A. Kriplani, S. Krishnamoorthy, S. Maramraju, P. O'Connor, V. Radeka

Advanced Imaging Research Center

Research output: Contribution to journal › Article › peer-review

76 Scopus citations

Abstract

We are developing a scanner that will allow simultaneous acquisition of high resolution anatomical data using magnetic resonance imaging (MRI) and quantitative physiological data using positron emission tomography (PET). The approach is based on the technology used for the RatCAP conscious small animal PET tomograph which utilizes block detectors consisting of pixelated arrays of LSO crystals read out with matching arrays of avalanche photodiodes and a custom-designed ASIC. The version of this detector used for simultaneous PET/MRI imaging will be constructed out of all nonmagnetic materials and will be situated inside the MRI field. We have demonstrated that the PET detector and its electronics can be operated inside the MRI, and have obtained MRI images with various detector components located inside the MRI field. The MRI images show minimal distortion in this configuration even where some components still contain traces of certain magnetic materials. We plan to improve on the image quality in the future using completely non-magnetic components and by tuning the MRI pulse sequences. The combined result will be a highly compact, low mass PET scanner that can operate inside an MRI magnet without distorting the MRI image, and can be retrofitted into existing MRI instruments.

Original language	English (US)
Pages (from-to)	102-105
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	571
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nima.2006.10.039
State	Published - Feb 1 2007

Keywords

PET
PET/MRI
RatCAP
Simultaneous PET/MRI

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2006.10.039

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Woody, C., Schlyer, D., Vaska, P., Tomasi, D., Solis-Najera, S., Rooney, W., Pratte, J. F., Junnarkar, S., Stoll, S., Master, Z., Purschke, M., Park, S. J., Southekal, S., Kriplani, A., Krishnamoorthy, S., Maramraju, S., O'Connor, P., & Radeka, V. (2007). Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 571(1-2 SPEC. ISS.), 102-105. https://doi.org/10.1016/j.nima.2006.10.039

Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph. / Woody, C.; Schlyer, D.; Vaska, P. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 571, No. 1-2 SPEC. ISS., 01.02.2007, p. 102-105.

Research output: Contribution to journal › Article › peer-review

Woody, C, Schlyer, D, Vaska, P, Tomasi, D, Solis-Najera, S, Rooney, W, Pratte, JF, Junnarkar, S, Stoll, S, Master, Z, Purschke, M, Park, SJ, Southekal, S, Kriplani, A, Krishnamoorthy, S, Maramraju, S, O'Connor, P & Radeka, V 2007, 'Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 571, no. 1-2 SPEC. ISS., pp. 102-105. https://doi.org/10.1016/j.nima.2006.10.039

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AU - Junnarkar, S.

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Preliminary studies of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph

Abstract

Keywords

ASJC Scopus subject areas

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