Search Results - Image coding, e.g. from bit‐mapped to non bit‐mapped

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 by Chen, Guang‐Hong, Li, Yinsheng

“… In some applications, it is desirable to use data corresponding to a narrow temporal window to reconstruct images with reduced temporal‐average artifacts…”
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Characterization of statistical prior image constrained compressed sensing (PICCS): II. Application to dose reduction by Lauzier, Pascal Thériault, Chen, Guang-Hong

“… This paper studies the performance of a scheme called dose reduction using prior image constrained compressed sensing (DR-PICCS…”
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Coded excitation ultrasonic needle tracking: An in vivo study by 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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Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry by Sechopoulos, Ioannis, Bliznakova, Kristina, Qin, Xulei, Fei, Baowei, Feng, Steve Si Jia

“… tissue mixture approximation. Methods: Twenty volumetric images of patient breasts were acquired with a dedicated breast CT prototype system and the voxels…”
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Predicting adenocarcinoma recurrence using computational texture models of nodule components in lung CT by Depeursinge, Adrien, Yanagawa, Masahiro, Leung, Ann N., Rubin, Daniel L.

“…). Unlike other traditional texture attributes, the proposed texture models are designed to encode local image scales and directions…”
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A novel approach to mammographic breast compression: Improved standardization and reduced discomfort by controlling pressure instead of force by 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…”
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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 by Salvagnini, Elena, Bosmans, Hilde, Van Ongeval, Chantal, Van Steen, Andreas, Michielsen, Koen, Cockmartin, Lesley, Struelens, Lara, Marshall, Nicholas W.

“…) settings that maintain pixel values in the detector constant, lesion detectability in clinical images decreases as a function of breast thickness and (2…”
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Database-assisted low-dose CT image restoration by Xu, Wei, Ha, Sungsoo, Mueller, Klaus

“… However, since a prior is not always available, the authors now extend the authors’ method to use a database of images of other patients. Methods: The authors…”
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Analytic reconstruction algorithms for triple‐source CT with horizontal data truncation by 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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First‐arrival traveltime sound speed inversion with a priori information by 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 by 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 finite-element based compression model…”
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A complete software application for automatic registration of x‐ray mammography and magnetic resonance images by Solves‐Llorens, J. A., Rupérez, M. J., Monserrat, C., Feliu, E., García, M., Lloret, M.

“… The application is a fully automated method that performs a complete registration of magnetic resonance (MR) images and x‐ray (XR…”
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Development of a novel depth of interaction PET detector using highly multiplexed G-APD cross-strip encoding by 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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Dynamic keyhole: A novel method to improve MR images in the presence of respiratory motion for real‐time MRI by 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 respiratory motion for real‐time thoracic image‐guided radiotherapy. Methods…”
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Strain-compounding technique with ultrasound Nakagami imaging for distinguishing between benign and malignant breast tumors by 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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Single‐frequency excitation wideband MRI (SE‐WMRI) by Wu, Edzer L., Huang, Yun‐An, Chiueh, Tzi‐Dar, Chen, Jyh‐Horng

“…) was proposed to obtain high‐quality accelerated images by reducing phase‐encoding steps while applying separation gradients. Methods: A zig‐zag k…”
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Creating optimal code for GPU-accelerated CT reconstruction using ant colony optimization by 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 by Cepek, Jeremy, Chronik, Blaine A., Fenster, Aaron

“…: Three localization frames were considered based on having distinctly different methods of encoding position and orientation in MR images…”
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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 by Wang, Zhiyue J., Chia, Jonathan M., Ahmed, Shaheen, Rollins, Nancy K.

“…) were placed manually on the b = 0 image volume on transverse slices, and signal was recorded as the mean value of the ROI…”
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A method to measure paddle and detector pressures and footprints in mammography by Hogg, Peter, Szczepura, Katy, Darlington, Alison, Maxwell, Anthony

“…Purpose: Compression is necessary in mammography to improve image quality and reduce radiation burden…”
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