Výsledky vyhledávání - multi‐slice helical interpolation algorithms

Multi-slice helical CT: Scan and reconstruction Autor Hu, Hui

“… It also presents new challenges and new characteristics. In this paper, we study the scan and reconstruction principles of the multi-slice helical CT in general and the 4-slice helical CT in particular…”
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Algorithm for image reconstruction in multi-slice helical CT Autor Taguchi, Katsuyuki, Aradate, Hiroshi

“… Two helical interpolation methods for single-slice CT, 360LI and 180LI, were used as starting points and extended to multi-slice CT…”
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Analytical models for multi-slice helical CT performance parameters Autor Hsieh, Jiang

“…) and noise performance. In this paper, we derive several closed-form expressions, for linear interpolation based helical reconstruction algorithms, to characterize these performance parameters under different detector…”
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WE‐A‐301‐11: Low Dose Multi‐Slice Helical CT Reconstruction Using Tight Frame Regularization Autor Tian, Z, Jia, X, Dong, B, Lou, Y, Jiang, S

“…Purpose: Multi‐slice helical CT has been widely used in CT diagnostic imaging due to its large coverage and short acquisition time…”
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Metal artifact reduction from reformatted projections for hip prostheses in multislice helical computed tomography: techniques and initial clinical results Autor Yu, Lifeng, Li, Hua, Mueller, Jan, Kofler, James M, Liu, Xin, Primak, Andrew N, Fletcher, Joel G, Guimaraes, Luis S, Macedo, Thanila, McCollough, Cynthia H

“… The purpose of this work was to develop a projection-based method for reducing metal artifacts caused by hip prostheses in multislice helical CT…”
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WE‐D‐332‐07: Automatic Metal Artifact Reduction From Reformatted Projections in Multi‐Slice Helical CT Autor Yu, LF, Kofler, JM, Liu, X, Primak, AN, McCollough, CH

“…‐slice helical CT and to evaluate it using clinical data. Method and Materials: The proposed method uses reformatted projections created from helical projection data by combining data at the same angle view over the full longitudinal scan range…”
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ECG-correlated image reconstruction from subsecond multi-slice spiral CT scans of the heart Autor Kachelrieß, Marc, Ulzheimer, Stefan, Kalender, Willi A.

“… for imaging the heart with subsecond multi-slice spiral CT utilizing electrocardiogram (ECG) information. The single-slice cardiac z-interpolation algorithms 180…”
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Improvement of efficiency and flexibility in multi-slice helical CT Autor Sun, Wen-wu, Chen, Si-ping, Zhuang, Tian-ge

“… The combination of helical scanning with multi-slice CT is a promising approach. Image reconstruction in multi-slice CT becomes, therefore, the major challenge…”
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The cause of the artifact in 4-slice helical computed tomography Autor Taguchi, Katsuyuki, Aradate, Hiroshi, Saito, Yasuo, Zmora, Ilan, Han, Kyung S., Silver, Michael D.

“…) changeover in pairs of data used in z interpolation, (2) sampling interval in z, and (3) the cone angle. This study analyzes the first two causes of the artifact and describes how the current algorithm…”
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Reproducibility of multi-slice spiral computed tomography scans:An experimental study Autor van Straten, Marcel, Venema, Henk W., Hartman, Joris, den Heeten, Gerard J., Grimbergen, Cornelis A.

“…In multi-slice spiral computed tomography (CT) images interpolation artifacts are present…”
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Multi-slice helical CT: principles, imaging characteristics, and performance Autor Hui Hu, He, H.D., Fox, S., Ackelsberg, S., Strong, G., Seidenschnur, G.

“… A 4-slice CT scanner has been developed. Here, the authors outline the principles of multi-slice helical CT in general and 4-slice helical CT in particular…”
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FFT-based approach to longitudinal interpolation in single- and multi-slice helical CT Autor Xiaochuan Pan, La Riviere, P.J.

“…Presents an approach to single- and multi-slice helical computed tomography (CT) image reconstruction that exploits the fast Fourier transform (FFT…”
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A nonlinear helical reconstruction algorithm for multi-slice CT Autor Hsieh, J.

“… In this paper, we propose a new helical reconstruction algorithm for multi-slice helical CT. To avoid discontinuity in the helical weighting function, a double cone shaped region is selected as the POR…”
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A multi-slice helical CT reconstruction with generalized weighting Autor Hsieh, J., Toth, T., Simoni, P., Slack, C., Grekowicz, B., Seidenschnur, G., Wang, S.

“…Multi-slice computed tomography (MCT) is one of the most recent technology advancements in CT…”
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Reconstruction Algorithm with Improved Efficiency and Flexibility in Multi-Slice Spiral CT Autor Sun, Wenwu, Chen, Siping, Zhuang, Tiange

“… The combination of spiral scanning with multi-slice CT is a promising approach. The algorithm of image reconstruction for multi-slice spiral CT becomes, therefore, the main challenge…”
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A detector response adaptive helical reconstruction algorithm Autor Hsieh, J., Li, J.

“…With the recent introduction of multi-slice CT (MCT) by many CT manufactures, research on the subject of multi-slice helical reconstruction has gained significant interests…”
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Feldkamp-type image reconstruction from equiangular data Autor Wang, B, Liu, H, Zhao, S, Wang, G

“… Previously, the traditional practical cone-beam reconstruction method, the Feldkamp algorithm, was generalized into the case of spiral/helical scanning loci with equispatial cone-beam projection data…”
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O(N/sup 2/ log N) native fan-beam tomographic reconstruction Autor Shu Xiao, Bresler, Y., Munson, D.C.

“… The algorithm also applies to multi-slice helical 3D reconstruction, and extends to 3D cone-beam reconstruction…”
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Fourier- and spline-based approaches for sparse-data problems in medical tomography Autor La Riviere, Patrick Jean

“… This work develops and evaluates applications of Fourier- and spline-based interpolation and smoothing approaches to some of…”
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