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Diagnosing small hepatic cysts on multidetector CT: an additional merit of thinner coronal reformations.

Authors
 Sung Ho Hwang, MD  ;  Jeong-Sik Yu, MD  ;  Jae-Joon Chung, MD  ;  Joo Hee Kim, MD  ;  Ki Whang Kim, MD 
Citation
 KOREAN JOURNAL OF RADIOLOGY, Vol.12(3) : 341-350, 2011 
Journal Title
 KOREAN JOURNAL OF RADIOLOGY 
ISSN
 1229-6929 
Issue Date
2011
MeSH
Adult ; Analysis of Variance ; Contrast Media ; Cysts/diagnostic imaging* ; Female ; Gadolinium DTPA ; Humans ; Iohexol/analogs & derivatives ; Liver Diseases/diagnostic imaging* ; Magnetic Resonance Imaging/methods ; Male ; Middle Aged ; Radiographic Image Interpretation, Computer-Assisted/methods* ; Tomography, X-Ray Computed/methods*
Keywords
Hepatic cyst ; Hounsfield units (HUs) ; Multidetector CT (MDCT) ; Partial volume effect ; Sectional thickness
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.
Files in This Item:
T201102533.pdf Download
DOI
10.3348/kjr.2011.12.3.341
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ki Whang(김기황)
Kim, Joo Hee(김주희) ORCID logo https://orcid.org/0000-0001-5383-3602
Yu, Jeong Sik(유정식) ORCID logo https://orcid.org/0000-0002-8171-5838
Chung, Jae Joon(정재준) ORCID logo https://orcid.org/0000-0002-7447-1193
Hwang, Sung Ho(황성호)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/93557
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