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Effects of low-dose energy spectrum scanning combined with adaptive statistical iterative reconstruction on the quality of imaging in Budd-Chiari syndrome.
- Source :
-
PloS one [PLoS One] 2018 Oct 18; Vol. 13 (10), pp. e0204797. Date of Electronic Publication: 2018 Oct 18 (Print Publication: 2018). - Publication Year :
- 2018
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Abstract
- Objective: To assess the quality and diagnostic accuracy of monochromatic images combined with adaptive statistical iterative reconstruction (ASIR) performed via spectral computed tomography (CT) in patients with Budd-Chiari syndrome (BCS).<br />Methods: Sixty-two patients with BCS underwent pectral CT with upper abdominal two-phase contrast-enhanced scanning to generate a 60keV monochromatic energy level combined with ASIR (ranging from 0% -100%) during the portal venous phase (PVP) and the hepatic venous phase (HVP). One-way ANOVA was used to compare vessel-to-liver contrast-to-noise ratio (CNR) for the portal vein (PV), hepatic vein (HV), and inferior vena cava (IVC). Subjective evaluations of the images in the three groups were conducted by image quality assessors and compared via Kruskal-Wallis H test.<br />Results: The CNR values of the PV trunk, HV, IVC, liver parenchyma and pancreas were within ASIR (ranging from 0% - 100%) weight, and the difference were statistically significant (p <0.05). The highest overall image score was distributed at 50% ASIR weight value. Higher CNR values of HV, hepatic parenchyma and pancreas were obtained in the IVC type than in mixed and HV types (respective p values = 0.035, 0.019 and 0.042). Higher CNR values of the IVC were obtained in the HV type than in mixed and IVC types (p = 0.032). The CNR value of the IVC in the mixed type was less than that of the HV type (p = 0.028). The CNR values of the HV and liver parenchyma in mixed type were lower than those of the IVC type (p = 0.016 and 0.038, respectively). The CNR value of pancreas in IVC type was higher than that of the HV type (p = 0.037). The diagnostic value of CNR in patients with the IVC type was higher than that in patients with mixed and HV type, while the diagnostic value of CNR was found to be the lowest for the HV type (p = 0.043).<br />Conclusion: A monochromatic energy level of 60 keV with 50% ASIR can significantly improve image quality in cases of BCS.<br />Competing Interests: The authors have declared that no competing interests exist.
- Subjects :
- Adolescent
Adult
Aged
Female
Hepatic Veins diagnostic imaging
Humans
Image Processing, Computer-Assisted methods
Liver diagnostic imaging
Male
Middle Aged
Portal Vein diagnostic imaging
Radiation Dosage
Radiographic Image Interpretation, Computer-Assisted methods
Signal-To-Noise Ratio
Tomography, X-Ray Computed methods
Vena Cava, Inferior diagnostic imaging
Young Adult
Budd-Chiari Syndrome diagnostic imaging
Radiography, Dual-Energy Scanned Projection methods
Subjects
Details
- Language :
- English
- ISSN :
- 1932-6203
- Volume :
- 13
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- PloS one
- Publication Type :
- Academic Journal
- Accession number :
- 30335782
- Full Text :
- https://doi.org/10.1371/journal.pone.0204797