Search Results - "Ji Changguo"

U-SPECT-II: An Ultra-High-Resolution Device for Molecular Small-Animal Imaging by van der Have, Frans, Vastenhouw, Brendan, Ramakers, Ruud M, Branderhorst, Woutjan, Krah, Jens O, Ji, Changguo, Staelens, Steven G, Beekman, Freek J

“…We present a new rodent SPECT system (U-SPECT-II) that enables molecular imaging of murine organs down to resolutions of less than half a millimeter and…”
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3-D Rat Brain Phantom for High-Resolution Molecular Imaging by Beekman, Frederik Johannes, van der Have, Frans, Vastenhouw, Brendan, van der Wilt, Gijs, Vervloet, Marcia, Visscher, RenÉe, Booij, Jan, Gerrits, Mirjam, Ji, Changguo, Ramakers, Ruud

“…With the steadily improving resolution of novel small-animal single photon emission computed tomography (SPECT) and positron emission tomography devices,…”
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SART-Type Image Reconstruction from Overlapped Projections by Yu, Hengyong, Ji, Changguo, Wang, G.

“…To maximize the time-integrated X-ray flux from multiple X-ray sources and shorten the data acquisition process, a promising way is to allow overlapped…”
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Impacts of reduction of CT radiation dose on PET in PET/CT imaging by Ting Xia, Wenli Wang, Changguo Ji, Xiaofeng Niu, Ye Hongwei, Winkler, Mark, Teshigawara, Manabu, Noshi, Yasuhiro, Gagnon, Daniel

“…We studied the impacts of CT dose reduction on PET quantitation with combination of currently available techniques by phantom and human studies on a Toshiba…”
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Accurate Coregistration between Ultra-High-Resolution Micro-SPECT and Circular Cone-Beam Micro-CT Scanners by Ji, Changguo, van der Have, Frans, Gratama van Andel, Hugo, Ramakers, Ruud, Beekman, Freek

“…Introduction. Spatially registering SPECT with CT makes it possible to anatomically localize SPECT tracers. In this study, an accurate method for the…”
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A non-local means post-filter with spatially adaptive filtering strength for whole-body PET by Wenyuan Qi, Ting Xia, Xiaofeng Niu, Changguo Ji, Winkler, Mark, Asma, Evren, Wenli Wang

“…We propose a spatially adaptive Non-Local Means (NLM) post-filtering approach for whole-body clinical Positron Emission Tomography (PET) imaging. Our approach…”
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Accurate 3D data stitching in circular cone-beam micro-CT by Ji, Changguo

“…In circular cone-beam microcomputed tomography (micro-CT), it is likely that the length of the Field of View (FOV) of a single acquisition is shorter than the…”
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Comparison of two projectors with image-based resolution models in a fully 3D list-mode PET reconstruction by Hongwei Ye, Xiaofeng Niu, Changguo Ji, Ting Xia, Asma, Evren, Winkler, Mark, Wang, Wenli, Gagnon, Daniel

“…In this paper, an image-based and spatially variant resolution model (i.e. PSF model) was derived from reconstructions of a series of point sources, and used…”
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High performance 2:17 type SmCo permanent magnets with low temperature coefficients by Ji, Changguo, Yang, Jinbo, Mao, Weihua, Yang, Yingchang, Li, Wei, Yu, Xiaojun

“…The high performance internal-temperature-compensated 2:17 type SmCo sintered magnet with composition of Sm 0.56Gd 0.3Dy 0.14(TM) 7.22 (TM=Co 0.68Fe 0.22Cu…”
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Electronic structures and hyperfine interactions of YFe10Mo2 and YFe10Mo2Z (Z = H, N) by Yang, Jinbo, Mao, Weihua, Ji, Changguo, Yang, Yingchang, Zhao, Zhenjie, Li, Fashen

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Fast and accurate detector module crystal blur and mis-position error modeling for PET imaging by Ting Xia, Huini Du, Wenli Wang, Burr, Kent, Jian Zhou, Balakrishnan, Karthik, Hongwei Ye, Xiaofeng Niu, Changguo Ji, Asma, Evren, Jinyi Qi, Gagnon, Daniel

“…We propose a new method for modeling the detector module crystal positioning-blur and mis-positioning errors based on the detector modules' flood histograms…”
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Effects of the grain alignment on the coercivity and its angular dependence for NdCoFeB permanent magnets by Gao Ruwei, Li, Wei, Ji Changguo, Zhang Deheng, Zhang, Jiancheng

“…The dependence of the macroscopic magnetism for NdCoFeB permanent magnet on the degree of grain alignment has been studied. With an increase in grain alignment…”
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Fast finite Hilbert transform via DE quadrature scheme by Ji, Changguo, Cui, Yidong, Cao, Wentian, Bao, Shanglian

“…The finite Hilbert transform (FHT) or inverse finite Hilbert transform (IFHT) is recently found to have some important applications in computerized tomography…”
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Design of a Water Immersion Phased Array Ultrasonic Automatic Testing Device for Copper Aluminum Transition Clamp by Yu, Chao, Ji, Changguo, Li, Xiaojie, Wang, Zhichun, Wu, Yong, Zhang, Pengkun, Wang, Lizhao

“…The welding quality of brazed copper aluminum transition clamps is crucial for preventing the heating of the clamps during substation operation. Phased array…”
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3-D Rat Brain Phantom for High-Resolution Molecular Imaging: Experimental studies aimed at advancing understanding of human brain disease and malfunction, and of behavior problems, may be aided by computer models of small laboratory animals: Computational Anthropomorphic Anatomical Models by BEEKMAN, Frederik Johannes, VASTENHOUW, Brendan, VAN DER WILT, Gijs, VERVLOET, Marcia, VISSCHER, Renée, BOOIJ, Jan, GERRITS, Mirjam, CHANGGUO JI, RAMAKERS, Ruud, VAN DER HAVE, Frans

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Accurate Coregistration between Ultra-High-Resolution Micro-SPECT and Circular Cone-Beam Micro-CT Scanners by Ji, Changguo, van der Have, Frans, Gratama van Andel, Hugo, Ramakers, Ruud, Beekman, Freek

“…Introduction. Spatially registering SPECT with CT makes it possible to anatomically localize SPECT tracers. In this study, an accurate method for the…”
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Electronic structures and hyperfine interactions of YFe 10Mo 2 and YFe 10Mo 2Z (Z = H, N) by Yang, Jinbo, Mao, Weihua, Ji, Changguo, Yang, Yingchang, Zhao, Zhenjie, Li, Fashen

“…Mössbauer spectra and self-consistent spin-polarized electronic structures of YFe 10Mo 2 and YFe 10Mo 2Z (Z = H, N) are reported. The Mössbauer data were…”
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