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Fig. 3 | BMC Medical Imaging

Fig. 3

From: Image quality improvement using model-based iterative reconstruction in low dose chest CT for children with necrotizing pneumonia

Fig. 3

A child with group A beta-hemolytic streptococcus infection. CT scan was acquired at 120 kV with automatic tube current modulation technique (19–22 mA). Multi-planar reconstruction (MPR) was used for image review. (a, b, c, d) were MPR images with mediastinal window. a MBIR image with 0.625 mm; b ASIR image with 0.625 mm; c FBP image with 5 mm; d FBP image with 0.625 mm. Image noise of in MBIR image (a) was reduced significantly compared with that of 0.625 mm ASIR image (b) and 0.625 mm FBP image (d), and was similar to that of 5 mm FBP image (c). Necrotic lesions (arrowheads) and encapsulated pleural effusion (arrow) in the MBIR image (a) were displayed much clearly and confidently than in the 0.625 mm ASIR (b) and FBP (d) images. 5 mm FBP image (c) was too thick to display boundaries and scope of necrotic lesions

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BMC Medical Imaging

ISSN: 1471-2342

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