Výsledky vyhledávání - "Image coding, e.g. from bit‐mapped to non bit‐mapped"

Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry Autor Sechopoulos, Ioannis, Bliznakova, Kristina, Qin, Xulei, Fei, Baowei, Feng, Steve Si Jia

“…Purpose: To compare the estimate of normalized glandular dose in mammography and breast CT imaging obtained using the actual glandular tissue distribution in…”
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Synchronized multiartifact reduction with tomographic reconstruction (SMART‐RECON): A statistical model based iterative image reconstruction method to eliminate limited‐view artifacts and to mitigate the temporal‐average artifacts in time‐resolved CT Autor Chen, Guang‐Hong, Li, Yinsheng

“…Purpose: In x‐ray computed tomography (CT), a violation of the Tuy data sufficiency condition leads to limited‐view artifacts. In some applications, it is…”
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Characterization of statistical prior image constrained compressed sensing (PICCS): II. Application to dose reduction Autor Lauzier, Pascal Thériault, Chen, Guang-Hong

“…Purpose: The ionizing radiation imparted to patients during computed tomography exams is raising concerns. This paper studies the performance of a scheme…”
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A novel approach to mammographic breast compression: Improved standardization and reduced discomfort by controlling pressure instead of force Autor de Groot, J. E., Broeders, M. J. M., Branderhorst, W., den Heeten, G. J., Grimbergen, C. A.

“…Purpose: In x-ray mammography, flattening of the breast improves image quality and reduces absorbed dose. Current mammographic compression guidelines are based…”
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Predicting adenocarcinoma recurrence using computational texture models of nodule components in lung CT Autor Depeursinge, Adrien, Yanagawa, Masahiro, Leung, Ann N., Rubin, Daniel L.

“…Purpose: To investigate the importance of presurgical computed tomography (CT) intensity and texture information from ground‐glass opacities (GGO) and solid…”
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Impact of compressed breast thickness and dose on lesion detectability in digital mammography: FROC study with simulated lesions in real mammograms Autor Salvagnini, Elena, Bosmans, Hilde, Van Ongeval, Chantal, Van Steen, Andreas, Michielsen, Koen, Cockmartin, Lesley, Struelens, Lara, Marshall, Nicholas W.

“…Purpose: The aim of this work was twofold: (1) to examine whether, with standard automatic exposure control (AEC) settings that maintain pixel values in the…”
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Coded excitation ultrasonic needle tracking: An in vivo study Autor Xia, Wenfeng, Ginsberg, Yuval, West, Simeon J., Nikitichev, Daniil I., Ourselin, Sebastien, David, Anna L., Desjardins, Adrien E.

“…Purpose: Accurate and efficient guidance of medical devices to procedural targets lies at the heart of interventional procedures. Ultrasound imaging is…”
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First‐arrival traveltime sound speed inversion with a priori information Autor Hooi, Fong Ming, Carson, Paul L.

“…Purpose: A first‐arrival travel‐time sound speed algorithm presented by Tarantola [Inverse Problem Theory and Methods for Model Parameter Estimation (SIAM,…”
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Generation of a suite of 3D computer-generated breast phantoms from a limited set of human subject data Autor Hsu, Christina M. L., Palmeri, Mark L., Segars, W. Paul, Veress, Alexander I., Dobbins, James T.

“…Purpose: The authors previously reported on a three-dimensional computer-generated breast phantom, based on empirical human image data, including a realistic…”
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A complete software application for automatic registration of x‐ray mammography and magnetic resonance images Autor Solves‐Llorens, J. A., Rupérez, M. J., Monserrat, C., Feliu, E., García, M., Lloret, M.

“…Purpose: This work presents a complete and automatic software application to aid radiologists in breast cancer diagnosis. The application is a fully automated…”
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Development of a novel depth of interaction PET detector using highly multiplexed G-APD cross-strip encoding Autor Kolb, A., Parl, C., Mantlik, F., Liu, C. C., Lorenz, E., Renker, D., Pichler, B. J.

“…Purpose: The aim of this study was to develop a prototype PET detector module for a combined small animal positron emission tomography and magnetic resonance…”
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Database-assisted low-dose CT image restoration Autor Xu, Wei, Ha, Sungsoo, Mueller, Klaus

“…Purpose: Acquiring data for CT at low radiation doses has become a pressing goal. Unfortunately, the reduced data quality adversely affects the quality of the…”
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Strain-compounding technique with ultrasound Nakagami imaging for distinguishing between benign and malignant breast tumors Autor Liao, Yin-Yin, Li, Chia-Hui, Tsui, Po-Hsiang, Chang, Chien-Cheng, Kuo, Wen-Hung, Chang, King-Jen, Yeh, Chih-Kuang

“…Purpose : The scatterer properties of breast tissues are related to the presence of collagen structures, while the elasticity properties of breast tissues…”
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Dynamic keyhole: A novel method to improve MR images in the presence of respiratory motion for real‐time MRI Autor Lee, Danny, Pollock, Sean, Whelan, Brendan, Keall, Paul, Kim, Taeho

“…Purpose: In this work, the authors present a novel magnetic resonance imaging reconstruction method to improve the quality of MR images in the presence of…”
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Analytic reconstruction algorithms for triple‐source CT with horizontal data truncation Autor Chen, Ming, Yu, Hengyong

“…Purpose: This paper explores a triple‐source imaging method with horizontal data truncation to enlarge the field of view (FOV) for big objects. Methods: The…”
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Single‐frequency excitation wideband MRI (SE‐WMRI) Autor Wu, Edzer L., Huang, Yun‐An, Chiueh, Tzi‐Dar, Chen, Jyh‐Horng

“…Purpose: In this study, single‐frequency excitation wideband magnetic resonance imaging (MRI) (SE‐WMRI) was proposed to obtain high‐quality accelerated images…”
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Creating optimal code for GPU-accelerated CT reconstruction using ant colony optimization Autor Papenhausen, Eric, Zheng, Ziyi, Mueller, Klaus

“…Purpose: CT reconstruction algorithms implemented on the GPU are highly sensitive to their implementation details and the hardware they run on. Fine-tuning an…”
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The effects of magnetic field distortion on the accuracy of passive device localization frames in MR imaging Autor Cepek, Jeremy, Chronik, Blaine A., Fenster, Aaron

“…Purpose: The interventional magnetic resonance (MR) imaging environment presents many challenges for the accurate localization of interventional devices. In…”
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Signal‐to‐noise assessment for diffusion tensor imaging with single data set and validation using a difference image method with data from a multicenter study Autor Wang, Zhiyue J., Chia, Jonathan M., Ahmed, Shaheen, Rollins, Nancy K.

“…Purpose: To describe a quantitative method for determination of SNR that extracts the local noise level using a single diffusion data set. Methods: Brain data…”
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A method to measure paddle and detector pressures and footprints in mammography Autor Hogg, Peter, Szczepura, Katy, Darlington, Alison, Maxwell, Anthony

“…Purpose: Compression is necessary in mammography to improve image quality and reduce radiation burden. Maximizing the amount of breast in contact with the…”
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