Diagnosing Small Hepatic Cysts on Multidetector CT: an Additional Merit of Thinner Coronal Reformations
Korean Journal of Radiology
;
: 341-350, 2011.
Article
in English
| WPRIM
| ID: wpr-225539
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 ANDMETHODS:
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 (< or = 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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Iohexol
/
Magnetic Resonance Imaging
/
Radiographic Image Interpretation, Computer-Assisted
/
Tomography, X-Ray Computed
/
Analysis of Variance
/
Contrast Media
/
Gadolinium DTPA
/
Cysts
/
Liver Diseases
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2011
Type:
Article
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