Diagnosing Small Hepatic Cysts on Multidetector CT: an Additional Merit of Thinner Coronal ReformationsDiagnosing Small Hepatic Cysts on Multidetector CT: an Additional Merit of Thinner Coronal Reformations
- Other Titles
- Diagnosing Small Hepatic Cysts on Multidetector CT: an Additional Merit of Thinner Coronal Reformations
- Authors
- 황성호; 유정식; 정재준; 김주희; 김기황
- Issue Date
- 2011
- Publisher
- 대한영상의학회
- Keywords
- Multidetector CT (MDCT); Hepatic cyst; Hounsfield units (HUs); Sectional thickness; Partial volume effect
- Citation
- Korean Journal of Radiology, v.12, no.3, pp.341 - 350
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Korean Journal of Radiology
- Volume
- 12
- Number
- 3
- Start Page
- 341
- End Page
- 350
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/113738
- ISSN
- 1229-6929
- Abstract
- Objective: We wanted to validate the additional merit of the thinner coronal reformation images from multidetector CT (MDCT) for making the diagnosis of hepatic cysts.
Materials and Methods: For the 90 benign hepatic cysts confirmed on MRI, the transverse (5-mm thickness) and additional coronal (2-mm thickness) reformation images from MDCT were compared with each other in terms of the Hounsfield units (HUs) and the size of each hepatic cyst.
Results: The attenuations (mean: 17.2 HUs, standard deviation: ± 14.4) on the thinner coronal images were significantly lower than those (mean: 40.7 HUs; standard deviation: ± 20.6) on the thicker transverse images for the small hepatic cysts (≤ 10 mm on the transverse image, p < 0.01). Twenty-three (79%) of the 29 cysts between 5 mm and 10 mm and 21 (51%) of 41 lesions up to 5 mm showed a mean HU value of 20 or less on the coronal reformation images.
Conclusion: By reducing the partial volume effect, routine coronal reformation of MDCT with a thinner section thickness can provide another merit for making a confidential diagnosis of many small sub-centimeter hepatic cysts, and these small cysts are not easily characterized on the conventional transverse images.
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