Hyun Choi

Hepatocellular Carcinoma in Older Adults: Clinical Features, Treatments, and Survival

OBJECTIVES: To evaluate the clinical features, treatments, stages, and survival in older adults with hepatocellular carcinoma (HCC).

A Case of Acute Q Fever with Severe Acute Cholestatic Hepatitis

Minimal hepatic dysfunction can be common in acute Q fever, but severe acute cholestatic hepatitis is rarely reported. We report on a 55-year-old male with acute Q fever and severe acute cholestatic hepatitis. He complained of fever, jaundice, ascites, and restlessness on admission. A liver biopsy revealed the presence of compact fibrin-ring granulomas. Serologic titers for C. burnetii IgM and IgG were 2048:1 and 1024:1, respectively. C. burnetii DNA was detected by a nested polymerase chain reaction on the liver tissue.

The Change of Coastline through High Pass Filter using ASTER Images

This study is about the change of coastline through using ASTER images. ASTER image is a sensor loaded in earth resources satellite shoot in Japan on Dec. 1999. It has 15m, 30m, 90m coastline, three sensors of VNIR, TIR and WIR, therefore it`s possible to obtain more information on the Earth than the existing satellite images cause it contains various a wavelength range in spite of relatively economic image. The coastline is changed according to topography shape because it`s strongly localized. Besides, it`s one of the most important factors in MGIS(Marine Geographic Information System). Therefore, this study is accomplished by analysing variation after abstraction the coastline automatically by Vector Line from ASTER satellite images. The study result will be used as an important basic data when analysis the change of e coastline hereafter.