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Congress: ECR25
Poster Number: C-20373
Type: Poster: EPOS Radiologist (scientific)
Authorblock: J. S. Kim, J. K. Lee; Seoul/KR
Disclosures:
Jin Sil Kim: Nothing to disclose
Jeong Kyong Lee: Nothing to disclose
Keywords: Abdomen, CT, Contrast agent-intravenous, Cirrhosis
Purpose Previous studies on hepatic multiphase CT using 64-channel MDCT in patients with chronic liver disease recommended an iodine dose of 560-600 mgI/kg or higher. Reducing iodine concentration is expected to minimize the impact on kidney function due to decreases in osmolality and viscosity. Recent advancements in hybrid iterative reconstruction with 128 channels or higher suggest that reducing the amount of iodine used in hepatic multiphase CT may be possible. However, most studies have focused on reducing the amount of iodine...
Read more Methods and materials Two hundreads patients who underwent hepatic multiphase CT using LCIC and 189 patients who underwent hepatic multiphase CT using HCIC were included after exclusion criteria applied. The iodine amount that was administered to each patient was also recorded. A margin of -0.5 for the difference between the two CT was pre-defined as noninferiority of the overall image quality of the arterial phase image. Qualitative and quantitative image quality and diagnostic performance were also compared. The cut-off value for the amount...
Read more Results The mean overall arterial phase image quality scores for LCIC CT and HCIC CT were 4.83 ± 0.44 and 4.77 ± 0.45, respectively, demonstrating noninferiority (difference: 0.088; 95% CI, 0.002 to 0.175) (Table 1 and figure 1). The conspicuity of the hepatic artery was 4.77 ± 0.47 for LCIC CT and 4.75 ± 0.52 for HCIC CT (p = 0.710). The contrast-to-noise ratio of the aorta was significantly different between LCIC CT and HCIC CT (68.14 ± 14.1 vs. 62.57...
Read more Conclusion In conclusion, hepatic multiphase CT using LCIC demonstrated acceptable diagnostic performance in patients with chronic liver disease using 128-channel or higher MDCT.
Read more References Nature Reviews Nephrology volume 13, pages169–180 (2017) European Journal of Radiology 83 (2014) 1995–2000 AJR 2008; 190:1003–1009;AJR 2009; 193:738–744 European Journal of Radiology 86 (2017) 63–69 Diagnostics 14, 2308 (2024).
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