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- W2044360089 abstract "To evaluate the image quality of dual-energy abdominal computed tomography (DECT) angiography (CTA) with a non-linear image blending technique as compared with the linear image blending technique and standard single-energy CT (SECT; 120 kVp SECT) imaging.Thirty-two patients underwent dual-source, dual-energy abdominal CTA (80 kVp/140 kVp mode) in the arterial phase to generate non-linear image blending and 0.5 linear image blending images. Abdominal vessel enhancement, image noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were evaluated and compared to the conventional 120 kVp SECT image sets (n = 29) using repeated-measures analysis of variance (ANOVA) with Bonferroni adjustment. Two radiologists assessed subjective vessel enhancement in consensus. The effective dose was calculated and compared using Student's t-test.The non-linear image blending images were ranked highest (over 0.5 linear image blending and 120 kVp SECT images) regarding mean vascular attenuation, CNR, SNR, and subjective image quality evaluation (p-values ranging from <0.001-0.021). However, there was no significant difference in renal artery branch visualization among the three sets of images (p = 0.405). Linear image blending images showed improved vascular attenuation (p = 0.011) as compared with 120 kVp SECT images, but displayed similar results regarding CNRs (p = 0.045) and SNRs (p = 0.053). The effective radiation dose for the DECT protocol was much lower than the SECT protocol (p = 0.004).The non-linear image blending technique of 80 kVp/140 kVp DECT improved vascular visualization by improving contrast enhancement in abdominal CTA during the arterial phase." @default.
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- W2044360089 date "2014-02-01" @default.
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- W2044360089 title "Use of non-linear image blending with dual-energy CT improves vascular visualization in abdominal angiography" @default.
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- W2044360089 doi "https://doi.org/10.1016/j.crad.2013.09.019" @default.
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