Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Chuanyong Bai"'
Publikováno v:
In Tsinghua Science & Technology 2010 15(1):1-10
Publikováno v:
15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine.
Cone-beam CT (CBCT) is a prevalent tool for image-guided radiation therapy (IGRT). It can be used for patient positioning and dose calculation, which are needed at the early and later stages of each fraction of treatment, respectively. The requiremen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a8d1e50dc98a468162fdd3fc2d1698f
https://doi.org/10.1117/12.2534383
https://doi.org/10.1117/12.2534383
Publikováno v:
Proceedings of SPIE; 5/15/2019, Vol. 11072, p1-5, 5p
Publikováno v:
Medical Physics. 37:2796-2803
Purpose: In medical imaging, data scaling is sometimes desired to handle the system complexity, such as uniformity calibration. Since the data are usually saved in short integer, conventional data scaling will first scale the data in floating point f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f6476364e06bc3a03744331a2be0550
https://doi.org/10.1118/1.3431573
https://doi.org/10.1118/1.3431573
Publikováno v:
Bai, Chuanyong; Maddahi, Jamshid; Kindem, Joel; Conwell, Richard; Gurley, Michael; & Old, Rex. (2009). Development and evaluation of a new fully automatic motion detection and correction technique in cardiac SPECT imaging. Journal of Nuclear Cardiology, 16(4), pp 580-589. doi: 10.1007/s12350-009-9096-7. Retrieved from: http://www.escholarship.org/uc/item/3jt5c34z
Journal of Nuclear Cardiology
Journal of Nuclear Cardiology
Background In cardiac SPECT perfusion imaging, motion correction of the data is critical to the minimization of motion introduced artifacts in the reconstructed images. Software-based (data-driven) motion correction techniques are the most convenient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0166db988a6694aa045c8ae9e64ed14
https://doi.org/10.1007/s12350-009-9096-7
https://doi.org/10.1007/s12350-009-9096-7
Publikováno v:
Scopus-Elsevier
We propose a new collimator geometry, the hybrid parallel-slant (HPS) hole geometry, to improve sensitivity for SPECT imaging with large field of view (LFOV) gamma cameras. A HPS collimator has one segment with parallel holes and one or more segments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24d747549fc4022eeacea38595089573
https://doi.org/10.1109/tns.2004.829590
https://doi.org/10.1109/tns.2004.829590
Publikováno v:
Scopus-Elsevier
We have developed a generalized model for accurate conversion from CT numbers to linear allenuation coefficients (LAC) by introducing a material-dependent conversion factor (CF). When assuming that a material x is a uniform mixture of water and anoth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34f4c16a70262d42f67ed3963a6e0498
https://doi.org/10.1109/tns.2003.817281
https://doi.org/10.1109/tns.2003.817281
Publikováno v:
IEEE Transactions on Nuclear Science. 49:74-81
We have evaluated the penalized ordered-subset transmission reconstruction (OSTR) algorithm for postinjection single photon transmission scanning. The OSTR algorithm of Erdogan and Fessler (1999) uses a more accurate model for transmission tomography
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::712b7b05d816064fee16394eba8ef731
https://doi.org/10.1109/tns.2002.998684
https://doi.org/10.1109/tns.2002.998684
Autor:
Matt Steiger, Joel Kindem, Andre Lehovich, Edward Anashkin, Weidong Luo, Chuanyong Bai, Michael James Sossong
Publikováno v:
SPIE Proceedings.
Muon tomography uses naturally occurring cosmic rays to detect nuclear threats in containers. Currently there are no systematic image characterization metrics for muon tomography. We propose a set of image characterization methods to quantify the ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6636f4fb22d5939b5cd65babdbf704d
https://doi.org/10.1117/12.2049972
https://doi.org/10.1117/12.2049972
Publikováno v:
IEEE Transactions on Nuclear Science. 48:38-42
In the authors' previous work, an efficient slice-by-slice blurring model was developed based on the Klein-Nishina formula to model first order Compton scatter in both parallel beam and converging beam SPECT. The first order Compton scatter projectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbcba7fd5b336f04f1bc14e985f8fc09
https://doi.org/10.1109/23.910830
https://doi.org/10.1109/23.910830