Yong-Han Paik6
Geum-Youn Gwak4
Ju Yeon Cho4
Seung Woon Paik4
Moon Seok Choi4
6Yong-Han Paik
4Geum-Youn Gwak
4Ju Yeon Cho
4Seung Woon Paik
4Moon Seok Choi
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A hierarchical human activity recognition (HAR) system is proposed to recognize abnormal activities from the daily life activities of elderly people living alone. The system is structured to have two-levels of feature extraction and activity recognition. The first level consists of R-transform, kernel discriminant analysis (KDA), $$k$$ -means algorithm and(More)
BACKGROUND/AIMS In Asian countries including Korea, the prevalence of gastroesophageal reflux disease (GERD) is on the rise and its clinical impact has been emphasized. The purpose of this study was to investigate the clinical characteristics of esophagitis patients with or without symptoms, and their association with psychological factors. METHODS(More)
Whether hydrogen and methane gas produced during lactulose breath test (LBT) are associated with symptoms of irritable bowel syndrome (IBS) is not determined. We aimed to investigate whether hydrogen and methane on LBT are associated with IBS symptoms. Sixty-eight IBS patients meeting the Rome III criteria for IBS, and 55 healthy controls, underwent LBT.(More)
Neurofibromas can occur anywhere in the body, but they usually involve the head, neck, pelvis, and extremities. Abdominal visceral involvement is rare, and intrahepatic involvement is even less common. We describe a patient who suffered from plexiform neurofibromatosis with liver involvement. A 49-year-old man, who had previously been diagnosed with(More)
  • Jem Ma Ahn, Yong-Han Paik, Sin Yeong Min, Ju Yeon Cho, Won Sohn, Dong Hyun Sinn +6 others
  • 2016
BACKGROUND/AIMS The aim of this study was to evaluate the relationship between controlled attenuation parameter (CAP) and hepatic steatosis, as assessed by ultrasound (US) in patients with alcoholic liver disease (ALD) or non-alcoholic fatty liver disease (NAFLD). METHODS Patients with either ALD or NAFLD who were diagnosed with fatty liver with US and(More)
BACKGROUND/AIMS Hepatitis-B-related acute-on-chronic liver failure has a poor prognosis. However, the advent of potent oral antiviral agents means that some patients can now recover with medical treatment. We aimed to identify the prognostic factors for hepatitis-B-related acute-on-chronic liver failure including the initial as well as the dynamically(More)
A 51-year-old male patient with chronic hepatitis B was referred to our hospital due to a 1-cm liver nodule on ultrasonography. Alpha-fetoprotein (AFP) was slightly elevated. The nodule showed prolonged enhancement on dynamic liver magnetic resonance imaging and appeared as a hyperintensity on both diffusion-weighted and T2-weighted imaging. The nodule was(More)
Recent studies have shown that circulating microRNAs are a potential biomarker in various types of malignancies. The aim of this study was to investigate the feasibility of using serum exosomal microRNAs as novel serological biomarkers for hepatocellular carcinoma (HCC) in patients with chronic hepatitis B (CHB). We measured the serum exosomal microRNAs and(More)
  • Won Sohn, Moon Seok Choi, Ju Yeon Cho, Geum-Youn Gwak, Yong-Han Paik, Joon Hyeok Lee +3 others
  • 2014
BACKGROUND/AIMS The role of radiofrequency ablation (RFA) remains uncertain in patients with viable hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE). METHODS A total of 101 patients (April 2007 to August 2010) underwent RFA for residual or recurrent HCC after TACE. We analyzed their long-term outcomes and predictive factors. (More)
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