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

 Sung Ho Hwang, MD  ;  Jeong-Sik Yu, MD  ;  Jae-Joon Chung, MD  ;  Joo Hee Kim, MD  ;  Ki Whang Kim, MD 
 Korean Journal of Radiology, Vol.12(3) : 341-350, 2011 
Journal Title
 Korean Journal of Radiology 
Issue Date
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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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실)
Yonsei Authors
김기황(Kim, Ki Whang)
김주희(Kim, Joo Hee)
유정식(Yu, Jeong Sik)
정재준(Chung, Jae Joon) ORCID logo https://orcid.org/0000-0002-7447-1193
황성호(Hwang, Sung Ho)
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