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KMID : 0357520180410010013
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Journal of Radiological Science and Technology
2018 Volume.41 No. 1 p.13 ~ p.24
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Liver Size Measurement Method by Ultrasonography and Reference Range based on Normal Adult Physique Index
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Kim Yong-Kyun
Han Dong-Kyoon
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Abstract
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Liver size is an important component in the diagnosis and follow-up of diffuse liver disease when testing for liver disease using ultrasonography. However, difficulties lies in determining the presence of hepatomegaly and liver atrophy because the method used for measuring liver size differs from one examiner to another and there is no relevant standard based on body build. The present study aims to propose a more objective method for liver size measurement and a reference range based on body build. A total of 260 normal adults (130 males, 130 females) participated in the study. Ultrasonography was performed in all participants to measure the size of the right lobe, left lobe, quadrate lobe, and caudate lobe of liver. Based on Physique Index(PI), a value derived from multiplying weight(kg) by height(m2), size of physique was divided into three groups including Group I with PI<150, Group II with 150≤PI≤250, and Group III with PI>250. Thus, mean liver size by PI and a reference range with 95% reliability were suggested. The superoinferior diameter of right lobe was 12.34±1.18cm in males and 11.07±0.93cm in females, and its reference range was 10.64~11.0cm for Group I, 11.78~12.12cm for Group II, and 13.02~13.84cm for Group III. The anteroposterior diameter(T) of left lobe was 5.93±1.09cm in males and 5.18±0.99cm in females, and its reference range was 4.77~5.17cm for Group I, 5.49~5.79cm for Group II, and 6.68~7.44cm for Group III. The transverse diameter was 3.51±0.60cm in male participants and 3.42±0.49cm in female participants and its reference range was 3.29~3.51cm for Group I, 3.36~3.55cm for Group II, and 3.52~4.0cm for Group III. The caudate lobe index was 11.65±2.88cm2 in males and 9.62±2.18cm2 in females and its reference range was 8.83~9.75cm2 for Group I, 10.62~11.47cm2 for Group II, and 11.89~14.26cm2 for Group III. As a basic measurement method of liver size, the present study suggests measuring the superoinferior diameter for right liver lobe, the anteroposterior diameter for left liver lobe, the transverse diameter for quadrate lobe, and the caudate lobe index for caudate lobe. It is expected that this method along with its relevant reference range can be used as useful indicators in determining hepatomegaly and liver atrophy upon the diagnosis and follow-up testing of diffuse liver disease.
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KEYWORD
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Ultrasonography, Liver size measurement, Physique Index, Hepatomegaly, Liver atrophy
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