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检索条件"主题词=Medical-image reconstruction methods and algorithms, computer-aided software"
62 条 记 录,以下是31-40 订阅
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Sub-millimeter nuclear medical imaging with high sensitivity in positron emission tomography using β+γ coincidences
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JOURNAL OF INSTRUMENTATION 2014年 第1期9卷 P01008-P01008页
作者: Lang, C. Habs, D. Parodi, K. Thirolf, P. G. Univ Munich Fak Phys LS Med Phys D-85748 Garching Germany Max Planck Inst Quantum Opt D-84748 Garching Germany
We present a nuclear medical imaging technique, employing triple-g trajectory intersections from beta(+)-gamma coincidences, able to reach sub-millimeter spatial resolution in 3 dimensions with a reduced requirement o... 详细信息
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Large-Area SiPM Pixels (LASiPs) in SPECT
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JOURNAL OF INSTRUMENTATION 2022年 第7期17卷 C07021-C07021页
作者: Wunderlich, C. Guberman, D. Paoletti, R. Rugliancich, A. Passeri, A. Ist Nazl Fis Nucl Sez Pisa Largo Bruno Pontecorvo 3 Edificio C I-56126 Pisa Italy Univ Siena Dipartimento Sci Fis Terra & Ambiente Via Roma 56 I-53100 Siena Italy Univ Firenze Dipartimento Sci Biomed Sperimentali & Clin SBSC Viale Morgagni 50 I-50134 Florence Italy
A standard camera for Single Photon Emission Computed Tomography (SPECT) contains 50-100 photomultiplier tubes (PMTs) that occupy at least 50% of its volume. It is shielded by a thick layer of lead which makes it heav... 详细信息
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Experimental results of use of triple-energy X-ray beam with K-edge filter in multi-energy imaging
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JOURNAL OF INSTRUMENTATION 2016年 第4期11卷 P04009-P04009页
作者: Kim, D. Lee, S. Jeon, P. -H. Eulji Univ Dept Radiol Sci 553 Sanseong Daero Songnam Gyeonggi South Korea Konyang Univ Dept Radiol Sci 158 Gwanjeodong Ro Daejoen South Korea Yonsei Univ Dept Radiol Sci 1 Yonseidae Gil Wonju Gangwon South Korea
Multi-energy imaging is useful for contrast enhancement of lesions, quantitative analysis of specific materials and material separation in the human body. Generally, dual-energy methods are applied to discriminating t... 详细信息
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Minimizing inconsistencies in gray values in small field-of-view dental computed tomography by modulating reconstruction filter intensity: simulation study
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JOURNAL OF INSTRUMENTATION 2024年 第12期19卷
作者: Kim, Woosung Shim, Jiyong Jeon, Duhee Lim, Younghwan Lee, Soohyun Kim, Kyuseok Park, Chulkyu Cho, Hyosung Yonsei Univ Dept Radiat Convergence Engn Wonju South Korea Eulji Univ Dept Biomed Engn Seongnam South Korea Vatech Co R&D Ctr Hwaseong South Korea
Small field-of-view (FOV) cone-beam computed tomography (CBCT), which employs low-cost, small-area flat-panel detectors, is often used in dental CT where only a limited volume of an examined object is reconstructed us... 详细信息
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Tracking a moving point source using triple gamma imaging
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JOURNAL OF INSTRUMENTATION 2024年 第1期19卷 P01001页
作者: Chmeissani, Mokhtar Kolstein, Machiel Arino-Estrada, Gerard Gabriel Macias-Montero, Jose Puigdengoles, Carles Garcia, Jorge Barcelona Inst Sci & Technol BIST Inst Fis Altes Energies IFAE Campus UAB E-08193 Bellaterra Barcelona Spain Univ Calif Davis Dept Biomed Engn Davis CA 95616 USA
With positron emission tomography (PET), the positron of a beta(+) emitter radioisotope annihilates with a nearby electron producing a pair of back-to-back 511 keV gamma rays that can be detected in a scanner surround... 详细信息
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Mammogram density classification using deep convolutional neural network
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JOURNAL OF INSTRUMENTATION 2021年 第1期16卷
作者: Nithya, R. Santhi, B. SASTRA Deemed Univ Sch Comp Thanjavur 613402 Tamil Nadu India
Artificial intelligence plays an important role in the classification of medical images for computerized diagnosis of the disease. The computer-aided medical imaging analysis system is developed for breast tissue dens... 详细信息
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Multi-contrast CT imaging using a high energy resolution CdTe detector and a CZT photon-counting detector
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JOURNAL OF INSTRUMENTATION 2022年 第1期17卷 P01004页
作者: Clements, N. Richtsmeier, D. Hart, A. Bazalova-Carter, M. Univ Victoria Dept Phys & Astron 3800 Finnerty Rd Victoria BC Canada
Computed tomography (CT) imaging with high energy resolution detectors shows great promise in material decomposition and multi-contrast imaging. Multi-contrast imaging was studied by imaging a phantom with iodine (I),... 详细信息
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Optimal contrast enhancement achieved by the synthetic method for bone and tissue separation based on a dual-energy radiographic system
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JOURNAL OF INSTRUMENTATION 2013年 第07期8卷 P07009-P07009页
作者: Kim, D. -H. Lee, Y. -J. Jeon, P. -H. Jo, B. -D. Kim, H. -J. Yonsei Univ Dept Radiol Sci Wonju 220710 Gangwon South Korea Yonsei Univ Res Inst Hlth Sci Wonju 220710 Gangwon South Korea
In dual-energy digital radiography (DEDR), the energy subtraction and equivalent thickness methods have been used for detecting thorax lesions. However, the image contrast of the energy subtraction method is low in co... 详细信息
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A feasibility study for anatomical noise reduction in dual-energy chest digital tomosynthesis
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JOURNAL OF INSTRUMENTATION 2016年 第1期11卷 P01016-P01016页
作者: Lee, D. Kim, Y. -s. Choi, S. Lee, H. Choi, S. Kim, H. -J. Yonsei Univ Coll Hlth Sci Dept Radiat Convergence Engn 1 Yonseidae Gil Wonju 220710 Gangwon South Korea Yonsei Univ Dept Radiol Sci 1 Yonseidae Gil Wonju 220710 Gangwon South Korea Yonsei Univ Res Inst Hlth Sci 1 Yonseidae Gil Wonju 220710 Gangwon South Korea
Lung cancer is the leading cause of cancer death worldwide. Thus, early diagnosis is of considerable importance. For early screening of lung cancer, computed tomography (CT) has been used as the gold standard. Chest d... 详细信息
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Quasi-real time acquisition and processing for biomedical IR and conventional imaging in surgery applications
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JOURNAL OF INSTRUMENTATION 2019年 第3期14卷 P03011-P03011页
作者: Lay-Ekuakille, A. Visconti, P. de Fazio, R. Veneziano, D. Univ Salento Dept Innovat Engn Via Monteroni I-73100 Lecce Italy Asl Reggio Calabria Osped Riuniti Bianchi Melacrino Morelli Via G Melacrino 21 I-89124 Reggio Di Calabria Italy
Surgery decision making is almost basically adopted by imaging, and for internal organs, imaging is the only tool for proceeding on. Interested imaging is obtained by as Xrays, CT (computer Tomography), MRI (Magnetic ... 详细信息
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