This prospective study aims to perform intra-individual comparison of the image quality between low dose liver CT with deep learning reconstruction and standard dose liver CT with iterative reconstruction in patients with liver metastasis.
Study Type
OBSERVATIONAL
Enrollment
134
contrast-enhanced abdomen CT using dual-source CT scanner using A-tube (67% radiation) and B-tube (33% radiation). * full dose CT data (A +B tubes, 100%) are reconstructed with iterative reconstruction (conventional) * low dose CT data (A-tube only, B-tube only) are reconstructed with deep learning commercially available software. * images are reconstructed using full dose (A- \& B- tubes) and smaller dose (A-tube only, B-tube only)
Seoul National University Hospital
Seoul, South Korea
Ulsan University Hospital
Ulsan, South Korea
liver lesion conspicuity
graded on a five-point scale (1-5) with higher score indicates a better conscpicuity.
Time frame: 6 months after the CT scan
liver lesion detectability
liver lesion detection rate on standard dose CT and low dose CT by blinded reviewers
Time frame: 6 months after the CT scan
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