Investigation of iterative image reconstruction in low-dose breast CT.
Investigation of iterative image reconstruction in low-dose breast CT.
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DOI:
10.1088/0031-9155/59/11/2659
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发表时间:
2014-06-07
影响因子:
3.5
通讯作者:
Pan X
中科院分区:
文献类型:
--
作者:
Bian J;Yang K;Boone JM;Han X;Sidky EY;Pan X
Interest exists in developing computed tomography (CT) dedicated for breast-cancer imaging. Because breast tissues are radiation-sensitive, the total radiation exposure in a breast-CT scan is kept low, often comparable to a typical two-view mammography exam, thus resulting in a challenging low-dose-data-reconstruction problem. In recent years, evidence exists suggesting that iterative reconstruction may yield images of improved quality from low-dose data. In this work, based upon the constrained image-total-variation (TV) minimization program and its numerical solver, i.e., the adaptive steepest descent-projection onto the convex set (ASD-POCS), we investigate and evaluate iterative image reconstructions from low-dose breast-CT data of patients, with focuses on identifying and determining key reconstruction parameters, devising surrogate utility metrics for characterizing reconstruction quality, and tailoring the program and ASD-POCS to the specific reconstruction task under consideration. The ASD-POCS reconstructions appear to outperform the corresponding clinical FDK reconstructions, in terms of subjective visualization and surrogate utility metrics.
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影响因子:
10.6
作者:
Han X;Bian J;Eaker DR;Kline TL;Sidky EY;Ritman EL;Pan X
通讯作者:
Pan X
影响因子:
3.5
作者:
Han X;Bian J;Ritman EL;Sidky EY;Pan X
通讯作者:
Pan X
影响因子:
2
作者:
GORDON, R;BENDER, R;HERMAN, GT
通讯作者:
HERMAN, GT
影响因子:
3.8
作者:
Chen, B;Ning, R
通讯作者:
Ning, R
影响因子:
19.7
作者:
Deak, Zsuzsanna;Grimm, Jochen M.;Wirth, Stefan
通讯作者:
Wirth, Stefan