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检索条件"主题词=Computer-assisted Image processing"
229 条 记 录,以下是31-40 订阅
排序:
Sub-milliSievert (sub-mSv) CT colonography: a prospective comparison of image quality and polyp conspicuity at reduced-dose versus standard-dose imaging
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EUROPEAN RADIOLOGY 2015年 第7期25卷 2089-2102页
作者: Lubner, Meghan G. Pooler, B. Dustin Kitchin, Douglas R. Tang, Jie Li, Ke Kim, David H. del Rio, Alejandro Munoz Chen, Guang-Hong Pickhardt, Perry J. Univ Wisconsin Sch Med & Publ Hlth Dept Radiol Madison WI 53792 USA Univ Wisconsin Sch Med & Publ Hlth Med Phys Madison WI 53792 USA
To prospectively compare reduced-dose (RD) CT colonography (CTC) with standard-dose (SD) imaging using several reconstruction algorithms. Following SD supine CTC, 40 patients (mean age, 57.3 years;17 M/23 F;mean BMI, ... 详细信息
来源: 评论
Reducing the semantic gap in content-based image retrieval in mammography with relevance feedback and inclusion of expert knowledge
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INTERNATIONAL JOURNAL OF computer assisted RADIOLOGY AND SURGERY 2008年 第1-2期3卷 123-130页
作者: de Azevedo-Marques, Paulo Mazzoncini Rosa, Natalia Abdala Machado Traina, Agma Juci Traina, Caetano, Jr. Kinoshita, Sergio Koodi Rangayyan, Rangaraj Mandayam Univ Sao Paulo Fac Med Ribeirao Preto Dept Internal Med Image Sci & Med Phys Ctr BR-14048900 Ribeirao Preto SP Brazil Univ Sao Paulo Inst Math & Comp Sci BR-13560970 Sao Carlos SP Brazil Univ Calgary Schulich Sch Engn Dept Elect & Comp Engn Calgary AB T2N 1N4 Canada
Object We investigate the use of relevance feedback (RFb) and the inclusion of expert knowledge to reduce the semantic gap in content-based image retrieval (CBIR) of mammograms. Materials and methods Tests were conduc... 详细信息
来源: 评论
Statistical image reconstruction for inconsistent CT projection data
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METHODS OF INFORMATION IN MEDICINE 2007年 第3期46卷 261-269页
作者: Oehler, M. Buzug, T. M. Univ Lubeck Inst Med Engn D-23538 Lubeck Germany
Objectives: The filtered backprojection is not able to cope with metal-induced inconsistencies in the Radon space which leads to artifacts in reconstructed CF images. A new algorithm is presented that reduces the draw... 详细信息
来源: 评论
Optimization of exposure in panoramic radiography while maintaining image quality using adaptive filtering
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ACTA ODONTOLOGICA SCANDINAVICA 2016年 第3期74卷 229-235页
作者: Svenson, Bjorn Larsson, Lars Bath, Magnus Postgrad Dent Educ Ctr Dept Oral Radiol SE-70111 Orebro Sweden Univ Orebro Fac Med & Hlth Sch Hlth & Med Sci SE-70182 Orebro Sweden Skaraborg Hosp Skovde Dept Radiol Skovde Sweden Sahlgrens Univ Hosp Dept Med Phys & Biomed Engn Gothenburg Sweden Univ Gothenburg Dept Radiat Phys Inst Clin Sci Sahlgrenska Acad Gothenburg Sweden
Objective The purpose of the present study was to investigate the potential of using advanced external adaptive image processing for maintaining image quality while reducing exposure in dental panoramic storage phosph... 详细信息
来源: 评论
image-based biomarkers for solid tumor quantification
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EUROPEAN RADIOLOGY 2019年 第10期29卷 5431-5440页
作者: Savadjiev, Peter Chong, Jaron Dohan, Anthony Agnus, Vincent Forghani, Reza Reinhold, Caroline Gallix, Benoit McGill Univ Dept Diagnost Radiol Montreal PQ Canada McGill Univ Ctr Hlth Dept Diagnost Radiol 1001 Decarie Blvd Montreal PQ H4A 3J1 Canada Univ Diderot Paris 7 Hop Lariboisiere AP HP Dept Body & Intervent Imaging 2 Rue Ambroise Pare F-75475 Paris 10 France INSERM U965 2 Rue Ambroise Pare F-75475 Paris 10 France Inst Chirurg Guidee Image IHU Strasbourg 1 Pl Hop F-67091 Strasbourg France Jewish Gen Hosp Dept Radiol 3755 Chemin Cote St Catherine Montreal PQ H3T 1E2 Canada
The last few decades have witnessed tremendous technological developments in image-based biomarkers for tumor quantification and characterization. Initially limited to manual one- and two-dimensional size measurements... 详细信息
来源: 评论
image analysis of benign and malignant neck masses
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ANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY 1998年 第8期107卷 689-696页
作者: Plant, RL Eastern Virginia Med Sch Dept Otolaryngol Head & Neck Surg Norfolk VA 23507 USA
Current techniques for differentiating benign and malignant neck masses in computed tomography scans rely on basic features such as size and image density. Advances in digital imaging have led to development of sophis... 详细信息
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Enabling user-guided segmentation and tracking of surface-labeled cells in time-lapse image sets of living tissues
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CYTOMETRY PART A 2012年 第5期81A卷 409-418页
作者: Mashburn, David N. Lynch, Holley E. Ma, Xiaoyan Hutson, M. Shane Vanderbilt Univ Dept Phys & Astron Nashville TN 37235 USA Vanderbilt Univ Dept Biol Sci Nashville TN 37235 USA Vanderbilt Univ Vanderbilt Inst Integrat Biosyst Res & Educ Nashville TN 37235 USA
To study the process of morphogenesis, one often needs to collect and segment time-lapse images of living tissues to accurately track changing cellular morphology. This task typically involves segmenting and tracking ... 详细信息
来源: 评论
Making renal stones change size-impact of CT image post processing and reader variability
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EUROPEAN RADIOLOGY 2011年 第10期21卷 2218-2225页
作者: Liden, Mats Andersson, Torbjoern Geijer, Hayenkan Univ Orebro Sch Hlth & Med Sci S-70182 Orebro Sweden Univ Orebro Rontgenkliniken Dept Radiol S-70185 Orebro Sweden
Objectives The objectives of this study were to quantify the impact of image post-processing parameters on the apparent renal stone size, and to quantify the intra- and inter-reader variability in renal stone size est... 详细信息
来源: 评论
Trans-rectal ultrasound visibility of prostate lesions identified by magnetic resonance imaging increases accuracy of image-fusion targeted biopsies
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WORLD JOURNAL OF UROLOGY 2015年 第11期33卷 1669-1676页
作者: Ukimura, Osamu Marien, Arnaud Palmer, Suzanne Villers, Arnauld Aron, Manju Abreu, Andre Luis de Castro Leslie, Scott Shoji, Sunao Matsugasumi, Toru Gross, Mitchell Dasgupta, Prokar Gill, Inderbir S. Univ So Calif Keck Sch Med USC Inst Urol Los Angeles CA 90089 USA Univ So Calif Keck Sch Med Dept Radiol Los Angeles CA 90089 USA Univ So Calif Keck Sch Med Dept Pathol Los Angeles CA 90089 USA Kings Coll London Dept Urol London England
To compare the diagnostic yield of targeted prostate biopsy using image-fusion of multi-parametric magnetic resonance (mp-MR) with real-time trans-rectal ultrasound (TRUS) for clinically significant lesions that are s... 详细信息
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Integrated teaching of anatomy and radiology using three-dimensional image post-processing
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EUROPEAN RADIOLOGY 2009年 第12期19卷 2870-2877页
作者: Rengier, Fabian Doll, Sara von Tengg-Kobligk, Hendrik Kirsch, Joachim Kauczor, Hans-Ulrich Giesel, Frederik L. German Canc Res Ctr Dept Radiol Imaging & Radiooncol E010 D-69120 Heidelberg Germany German Canc Res Ctr Heidelberg Dkfz Dept Radiol D-69120 Heidelberg Germany Univ Heidelberg Hosp Dept Diagnost & Intervent Radiol D-69120 Heidelberg Germany Univ Heidelberg Inst Anat & Cell Biol D-69120 Heidelberg Germany Univ Heidelberg Hosp Dept Nucl Med D-69120 Heidelberg Germany
This article presents a new way of teaching by integrating both anatomy and radiology using three-dimensional image post-processing tools. One preclinical and one clinical module were developed for integrated teaching... 详细信息
来源: 评论