Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Junguo, Bian"'
Publikováno v:
Journal of Applied Clinical Medical Physics. 24
Quantitative measurements of activity in SPECT are important for radioisotope therapy planning and disease diagnosis. The aim of this manuscript is to develop a robust method to quantify the total activity in a volume-of-interest (VOI) of different q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::977a10409dd2aeb1d70d9be4820f2f08
https://doi.org/10.1002/acm2.13828
https://doi.org/10.1002/acm2.13828
Publikováno v:
International Journal of Biomedical Imaging, Vol 2006 (2006)
We have compared the performance of two different penalty choices for a penalized-likelihood sinogram-restoration strategy we have been developing. One is a quadratic penalty we have employed previously and the other is a new median-based penalty. We
Externí odkaz:
https://doaj.org/article/4efae7c9bd81492ca9abcc01dd1bd6e5
Autor:
Jinsong Ouyang, Junguo Bian, Auranuch Lorsakul, Georges El Fakhri, Yothin Rakvongthai, W. A. Worstell
Publikováno v:
IEEE Transactions on Medical Imaging. 34:740-747
Our goal is to validate a spectral computed tomography (CT) system design that uses a conventional X-ray source with multiple balanced K-edge filters. By performing a simultaneously synthetic reconstruction in multiple energy bins, we obtained a good
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da18fb39549d6ddb3c0be25f8e19934d
https://doi.org/10.1109/tmi.2014.2358561
https://doi.org/10.1109/tmi.2014.2358561
Publikováno v:
International Journal of Biomedical Imaging. 2006, p1-7. 7p.
Publikováno v:
Physics in Medicine and Biology. 58:205-230
The field of view (FOV) of a cone-beam computed tomography (CBCT) unit in a single-photon emission computed tomography (SPECT)/CBCT system can be increased by offsetting the CBCT detector. Analytic-based algorithms have been developed for image recon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d14d630d364d39244138e556480f36f7
https://doi.org/10.1088/0031-9155/58/2/205
https://doi.org/10.1088/0031-9155/58/2/205
Autor:
Georges El Fakhri, Junguo Bian, Jinsong Ouyang, Yang Kyun Park, Thomas Bortfeld, Gregory C. Sharp
Publikováno v:
Physics in medicine and biology. 61(9)
It is well-known that projections acquired over an angular range slightly over 180° (so-called short scan) are sufficient for fan-beam reconstruction. However, due to practical imaging conditions (projection data and reconstruction image discretizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4a52377dae16a1ee52aac17105006b6
https://pubmed.ncbi.nlm.nih.gov/27032676
https://pubmed.ncbi.nlm.nih.gov/27032676
Autor:
Jeffrey H. Siewerdsen, Charles A. Pelizzari, Junguo Bian, Emil Y. Sidky, Xiao Han, Jerry L. Prince, Xiaochuan Pan
Publikováno v:
Physics in Medicine and Biology. 55:6575-6599
Flat-panel-detector X-ray cone-beam computed tomography (CBCT) is used in a rapidly increasing host of imaging applications, including image-guided surgery and radiotherapy. The purpose of the work is to investigate and evaluate image reconstruction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9e42f8f1e717fecffc6491796190413
https://doi.org/10.1088/0031-9155/55/22/001
https://doi.org/10.1088/0031-9155/55/22/001
Publikováno v:
Tsinghua Science and Technology. 15:79-86
We investigate the feasibility of dual-energy method for image contrast enhancement in small animal studies using a low kV X-ray radiographic system. A robust method for X-ray spectrum estimation from transmission measurements, based on expectation-m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::043cec1ff607df38ba8581643c60e6ab
https://doi.org/10.1016/s1007-0214(10)70013-4
https://doi.org/10.1016/s1007-0214(10)70013-4
Autor:
Tong-Chuan He, Chin-Tu Chen, Xiaochuan Pan, Junguo Bian, Seungryong Cho, Charles A. Pelizzari
Publikováno v:
Medical Physics. 34:4923-4933
Cone-beam microcomputed tomography (microCT) is one of the most popular choices for small animal imaging which is becoming an important tool for studying animal models with transplanted diseases. Region-of-interest (ROI) imaging techniques in CT, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c4c1d1949e4fbe4c3788c29f645881c
https://doi.org/10.1118/1.2804924
https://doi.org/10.1118/1.2804924
Publikováno v:
International Journal on Artificial Intelligence Tools. 16:901-906
A novel neurofuzzy methodology for detecting hazardous material is presented in this paper. This methodology can be used to detect chemical agents at very low level of concentrations. Despite the presence of heavy noise, the presented methodology can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c3ce4ddc2b1cae78e22a03b938dfbd
https://doi.org/10.1142/s021821300700359x
https://doi.org/10.1142/s021821300700359x