53 Result(s)
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Article
Jeong-Sik Byeon
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Open AccessAn Image Turing Test on Realistic Gastroscopy Images Generated by Using the Progressive Growing of Generative Adversarial Networks
Generative adversarial networks (GAN) in medicine are valuable techniques for augmenting unbalanced rare data, anomaly detection, and avoiding patient privacy issues. However, there were limits to generating h...
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Open AccessIntegrative modeling of tumor genomes and epigenomes for enhanced cancer diagnosis by cell-free DNA
Multi-cancer early detection remains a key challenge in cell-free DNA (cfDNA)-based liquid biopsy. Here, we perform cfDNA whole-genome sequencing to generate two test datasets covering 2125 patient samples of ...
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Open AccessClinical outcomes of colonoscopic polypectomy with strategic surveillance colonoscopies in patients with 10 or more polyps
The clinical usefulness of repeat colonoscopic polypectomy in patients with numerous polyps has not been sufficiently determined. We aimed to analyze the clinical outcomes of colonoscopic polypectomy with surv...
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Oncological outcomes according to the treatment modality based on the size of rectal neuroendocrine tumors: a single-center retrospective study
Owing to an increased number of colonoscopy screenings, the incidence of diagnosed rectal neuroendocrine tumors (NETs) has also increased. Tumor size is one of the most frequently regarded factors when selecti...
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Chronic Viral Hepatitis Is Associated with Colorectal Neoplasia: A Systematic Review and Meta-Analysis
Chronic viral hepatitis is associated with a wide range of extrahepatic diseases; however, evidence on a link between chronic viral hepatitis and colorectal neoplasia is still lacking.
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Open AccessRisk and characteristics of tuberculosis after anti-tumor necrosis factor therapy for inflammatory bowel disease: a hospital-based cohort study from Korea
Anti-tumor necrosis factor (TNF) treatment for inflammatory bowel disease (IBD) increases the risk of tuberculosis (TB) infection. In the present study, we analyzed the clinical characteristics and risks of TB...
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The Clinical Significance of Anastomotic Ulcers After Ileocolic Resection to Predict Postoperative Recurrence of Crohn’s Disease
The Rutgeerts score is used to predict postoperative recurrence in CD patients after ileocolic resection and is primarily based on endoscopic findings at the neoterminal ileum. However, the optimal assessment ...
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Usefulness of narrow-band imaging for the detection of remnant sessile-serrated adenoma (SSA) tissue after endoscopic resection: the KASID multicenter study
A sessile-serrated adenoma (SSA) has a high risk for incomplete resection. Little is known regarding how to immediately detect remnant SSA tissue after endoscopic resection. We investigated the usefulness of n...
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Open AccessBiomolecular imaging of colorectal tumor lesions using a FITC-labeled scFv-Cκ fragment antibody
For the sensitive diagnosis of colorectal cancer lesions, advanced molecular imaging techniques using cancer-specific targets have emerged. However, issues regarding the clearance of unbound probes and immunog...
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Open AccessAnchoring the snare tip is a feasible endoscopic mucosal resection method for small rectal neuroendocrine tumors
Small rectal neuroendocrine tumors (NETs) can be treated using cap-assisted endoscopic mucosal resection (EMR-C), which requires additional effort to apply a dedicated cap and snare. We aimed to evaluate the f...
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Open AccessEndoscopic features and clinical outcomes of cytomegalovirus gastroenterocolitis in immunocompetent patients
We aimed to investigate the endoscopic features and clinical course of CMV gastroenterocolitis in immunocompetent patients. We reviewed the medical records and endoscopic images of 86 immunocompetent patients ...
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Open AccessMachine learning approach for differentiating cytomegalovirus esophagitis from herpes simplex virus esophagitis
The endoscopic features between herpes simplex virus (HSV) and cytomegalovirus (CMV) esophagitis overlap significantly, and hence the differential diagnosis between HSV and CMV esophagitis is sometimes difficu...
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Influence of Severe Vitamin D Deficiency on the Clinical Course of Inflammatory Bowel Disease
Previous studies have shown vitamin D status to be associated with disease activity in patients with inflammatory bowel disease (IBD), but its influence on the clinical course of IBD has not been established.
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Open AccessRisk of postpolypectomy bleeding in patients taking direct oral anticoagulants or clopidogrel
The usage of direct oral anticoagulants (DOACs) to prevent and treat thromboembolic events is gradually increasing. We aimed to evaluate the outcomes of patients taking DOACs after polypectomy. We retrospectiv...
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Open AccessPrevalence and risk factors of bowel symptoms in Korean patients with ulcerative colitis in endoscopic remission: a retrospective study
Many patients with ulcerative colitis (UC) in clinical remission frequently complain of bowel symptoms such as increased stool frequency (SF) and rectal bleeding (RB). However, studies on these patient-reporte...
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Technical feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings (with video)
Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new bendable forceps for improved access to gastrointestinal lesions and evaluated its technical...
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Tip-in versus conventional endoscopic mucosal resection for flat colorectal neoplasia 10 mm or larger in size
A modified endoscopic mucosal resection (EMR) technique, Tip-in EMR, was recently introduced to enhance the complete resection of colorectal neoplasia (CRN). We aimed to evaluate the feasibility of Tip-in EMR ...
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Association Between Carotid Ultrasonography Findings and Colorectal Adenoma in Asymptomatic Adults
Coexistence of colorectal neoplasia and atherosclerotic cardiovascular disease has been reported. Subclinical atherosclerosis can be evaluated noninvasively and easily by assessing carotid intima–media thickne...
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Open AccessReal-time detection of colon polyps during colonoscopy using deep learning: systematic validation with four independent datasets
We developed and validated a deep-learning algorithm for polyp detection. We used a YOLOv2 to develop the algorithm for automatic polyp detection on 8,075 images (503 polyps). We validated the algorithm using ...
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Incidence and Outcomes of Perianal Disease in an Asian Population with Crohn’s Disease: A Nationwide Population-Based Study
Little is known about the natural history of perianal fistulas in Asian populations with Crohn’s disease (CD).
