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Fig. 1 | Radiation Oncology

Fig. 1

From: Low-dose cone-beam CT (LD-CBCT) reconstruction for image-guided radiation therapy (IGRT) by three-dimensional dual-dictionary learning

Fig. 1

Comparison of representative slices of FDK, SART-DDL, SART and SART-TV. a shows typical slices at the same transverse location of an anthropomorphous head and neck phantom and c shows the reconstruction result of a typical patient. b and d shows the corresponding partial magnified parts of a and c, respectively. From left to right, the images are reconstructed by the FDK, SART-DDL, SART and SART-TV, respectively. a and (b) are displayed in the window of [− 220 HU, 720 HU]. c and d are displayed in the window of [− 450 HU, 550 HU]

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Radiation Oncology

ISSN: 1748-717X

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