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- W2364350020 abstract "Objective To compare the radiation dose between high-definition CT(GE Discovery HDCT750) with the adaptive statistical iterative reconstruction(ASiR) technology and 64-slice volume CT(GE LightSpeed VCT64) with filtered back projection(FBP) reconstruction in pediatric post-traumatic cervical CT scans.Methods Forty-seven children for post-traumatic cervical CT were included,and were divided into two groups according their sex,age and the order they came to the department.Group A(n=24) were scanned on the HDCT750 with nois index(NI) of 14,and images were reconstructed with 30%ASiR.Group B(n=23) underwent conventional VCT64 with NI of 12 and FBP reconstruction.The minimum and maximum tube currents and CT dose index(CTDIvol) were recorded.Image noises on the vertebral spongy bone and muscle were measured,and subjective image quality was assessed.These values were statistically compared between the two groups with SPSS 13.0.Results The average tube current and CTDIvol were(42.38±9.56)mA and(1.45±0.65)mGy,(64.21±11.95)mA and(2.18±0.73)mGy for group A and B,respectively(all P0.01).The objective image noises for the vertebral spongy bone and muscle for group A and B was 26.04±7.83,5.65±1.00 and 27.01±8.63,6.46±1.26,respectively(P=0.72,0.84).There was no significant difference of subjective image quality scores between group A and B(4.03±0.81 and 4.02±0.69,P=0.65).Conclusion Compared with conventional GE LightSpeed VCT64 with FBP,pediatric cervical CT on GE Discovery HDCT with 30%ASiR and 2 unit noise index increase provide 33% dose reduction,while maintaining similar image quality." @default.
- W2364350020 created "2016-06-24" @default.
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- W2364350020 date "2013-01-01" @default.
- W2364350020 modified "2023-09-24" @default.
- W2364350020 title "Application of adaptive statistical iterative reconstruction on high-definition CT in post traumatic low dose cervical CT scan of children" @default.
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