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Full-Text Articles in Mining Engineering
Performance Of A Bgo Pet/Ct With Higher Resolution Pet Detectors, John W. Wilson, Timothy G. Turkington, J. J. Williams, James G. Colsher, D. L. Mcdaniel, C. L. Kim, Steven G. Ross, C. W. Stearns, S. D. Wollenweber
Performance Of A Bgo Pet/Ct With Higher Resolution Pet Detectors, John W. Wilson, Timothy G. Turkington, J. J. Williams, James G. Colsher, D. L. Mcdaniel, C. L. Kim, Steven G. Ross, C. W. Stearns, S. D. Wollenweber
Mining Engineering Faculty Research & Creative Works
A new PET detector block has been designed to replace the standard detector of the Discovery ST PET/CT system. The new detector block is the same size as the original, but consists of an 8/spl times/6 (tangential× axial) matrix of crystals rather than the original 6/spl times/6. The new crystal dimensions are 4.7× 6.3× 30 mm/sup 3/ (tangential× axial× radial). Full PET/CT systems have been built with these detectors (Discovery STE). Most other aspects of the system are identical to the standard Discovery ST, with differences including the low energy threshold for 3D imaging (now 425 keV) and front-end electronics. …
Image Quality Vs. Nec In 2d And 3d Pet, John W. Wilson, Timothy G. Turkington, Josh M. Wilson, James G. Colsher, Steven G. Ross
Image Quality Vs. Nec In 2d And 3d Pet, John W. Wilson, Timothy G. Turkington, Josh M. Wilson, James G. Colsher, Steven G. Ross
Mining Engineering Faculty Research & Creative Works
To investigate the relationship between NEC and image quality to 2D and 3D PET, while simultaneously optimizing 3D low energy threshold (LET), we have performed a series of phantom measurements. The phantom consisted of 46 1 cm fillable hollow spheres on a random grid inside a water-filled oval cylinder, 21 cm tall, 36 cm wide, and 40 cm long. The phantom was imaged on a Discovery ST PET/CT system (GE Healthcare, Milwaukee, WI) in a series of 3 min scans as it decayed from an activity of 7.2 mCi. The scans included LET settings of 375,400, and 425 keV in …
Investigating The Optimum Lower Energy Threshold Of A New Research Pet/Ct Scanner, Osama Mawlawi, John W. Wilson, Tinsu Pan, Timothy G. Turkington
Investigating The Optimum Lower Energy Threshold Of A New Research Pet/Ct Scanner, Osama Mawlawi, John W. Wilson, Tinsu Pan, Timothy G. Turkington
Mining Engineering Faculty Research & Creative Works
An investigation of the optimum 3D lower energy threshold (LET) setting of the Discovery-RX, a new LYSO based GE research PET/CT scanner is conducted. Sensitivity and noise equivalent count rate (NECR) performance of the scanner in 3D mode were evaluated at multiple LET settings: 400, 425, 450, 460, 470 and 480 KeV. The performance evaluations were conducted according to the NEMA NU2-2001 standard. In addition, the NECR was also evaluated for the same LET settings using the Data Spectrum whole body phantom in order to more accurately simulate a true clinical setting. For the sensitivity measurements, the line source was …