A5100614553- Liver Disease and Transplantation
- Organ Transplantation Techniques and Outcomes
- Liver Disease Diagnosis and Treatment
- Transplantation: Methods and Outcomes
- Hepatocellular Carcinoma Treatment and Prognosis
- Pediatric Hepatobiliary Diseases and Treatments
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Gallbladder and Bile Duct Disorders
- Genetic and Kidney Cyst Diseases
- Organ Donation and Transplantation
- Renal and Vascular Pathologies
- Diet, Metabolism, and Disease
- Medical Imaging and Pathology Studies
- Medical Image Segmentation Techniques
- Congenital Anomalies and Fetal Surgery
- Radiation Dose and Imaging
- Reconstructive Facial Surgery Techniques
- Ultrasound and Hyperthermia Applications
- Cerebrovascular and Carotid Artery Diseases
- Nutrition and Health in Aging
- Consumer Perception and Purchasing Behavior
- Pelvic and Acetabular Injuries
- Pancreatitis Pathology and Treatment
- Tracheal and airway disorders
- Effects of Radiation Exposure
University of Ulsan
2015-2024
Asan Medical Center
2015-2024
Ulsan College
2015-2024
Research Institute of Radiology
2023
Ewha Womans University
2017
Korea Institute of Radiological and Medical Sciences
2017
Seoul National University
2001-2004
To determine prospectively the diagnostic performance of unenhanced computed tomography (CT) in assessment macrovesicular steatosis potential donors for living donor liver transplantation by using same-day biopsy as a reference standard.Institutional review board approval and informed consent were obtained. A total 154 candidates, including 104 men (mean age, 30.2 years +/- 10.3 [standard deviation]) 50 women 31.8 11.2), underwent CT ultrasonography-guided biopsy. Histologic degree was...
Purpose: To retrospectively compare the accuracy of visual grading and liver attenuation index in computed tomographic (CT) diagnosis 30% or higher macrovesicular steatosis living hepatic donors, by using histologic analysis as reference standard. Materials Methods: Institutional review board approval was obtained with waiver informed consent. Of 703 consecutive donor candidates, 24 patients (22 men two women; mean age ± standard deviation, 36.3 years 9.7) who had at same-day CT subsequent...
To describe the anatomical variation occurring in intrahepatic bile ducts (IHDs) terms of their branching patterns, and to determine frequency each variation.The study group consisted 300 consecutive donors for liver transplantation who underwent intraoperative cholangiography. Anatomical IHDs was classified according pattern right anterior posterior segmental duct (RASD RPSD, respectively), presence or absence first-order branch left hepatic (LHD), an accessory duct.The anatomy typical 63%...
To evaluate the utility of tardus parvus waveform hepatic artery at Doppler ultrasonography (US) in diagnosis arterial stenosis liver transplant (LT) recipients and determine whether accuracy such a is enhanced by including an optimal peak systolic velocity (PSV) cutoff.This retrospective study was institutional review board approved; requirement for informed consent waived. The authors identified 361 LT (267 male, 94 female) who underwent US either computed tomography (CT) or angiography,...
To determine the prevalence of arterioportal shunt associated with hepatic hemangiomas, describe two-phase spiral computed tomographic (CT) findings, and correlate presence size rapidity enhancement hemangiomas.The study group consisted 109 hemangiomas in 69 patients who underwent CT during 1 year. scans were obtained arterial (30-second delay) portal venous (65-second phases after injection 120 mL contrast material (3 mL/sec). Arterioportal shunts diagnosed when phase showed a wedge-shaped...
Although von Meyenburg complexes (VMC) are largely considered to be innocuous, neoplastic transformations have been described. The present report describes four cases of cholangiocarcinoma (CC) occurring on a background VMC. patients were all male and aged 69, 59, 68 75 years, respectively. While two asymptomatic, the other had history colon cancer. Radiologically tumors measured 3, 4, 4.5 10 cm well enhanced from arterial delayed portal phase. Microscopically, tumor consisted multiple foci...
To determine the relative accuracy of automated blood-free to blood-filled computed tomographic (CT) volumetry for estimation right-lobe weight in living donor liver transplantation.This retrospective study was approved by institutional review board; informed consent waived. Between October 1, 2008, and April 30, 2009, 88 live donors (54 men, 34 women; mean age, 26.1 years +/- 6.9 [standard deviation]) who underwent CT had their right lobes procured institution were included. Automated...
Because revascularization of the inferior right hepatic vein (IRHV) is a major component liver graft (RLG) reconstruction, we assessed surgical techniques and clinical outcomes IRHV reconstruction so that could formulate practical guidelines for standardized procedures. From July 2004 to February 2010, performed separate reconstructions in 487 1142 adult RLG recipients (42.7%). These included 364 patients with natural single 123 multiple IRHVs; latter group, IRHVs were unified by venoplasty,...
To identify factors associated with non-alcoholic fatty liver disease (NAFLD) in healthy Asian subjects.A propensity score-matched case-control study was designed. investigate the effects of demographic and clinical on presence NAFLD, a baseline-category logit model used. Potential living donors no hepatic steatosis (< 5%: n = 1353, group 1) were considered baseline category, subjects mild (5-33%: 724, 2) moderate/severe (> 33%: 116, 3) defined as cases. Age gender matched between cases...
Our aim was to assess preliminary experience with combined conventional T2-weighted and mangafodipir trisodium (MnDPDP)-enhanced T1-weighted MR cholangiography in evaluating early biliary complications of laparoscopic cholecystectomy.Conventional heavily MnDPDP-enhanced ERCP were performed seven patients high clinical suspicion after cholecystectomy. The final diagnoses classified according the presence degree bile duct injury, leakage, retained stones.The on as follows: complete transection...
The purposes of this pictorial essay are to show MDCT findings renal trauma and describe the indications protocol for MDCT.CT is indicated when patients have gross hematuria, hypotension, lumbar spinal injury, fractures lower ribs or transverse process. CT examination must be designed specifically urinary tract evaluation, especially useful purpose. Injury kidney graded I V according degree laceration amount hematoma.
This study aimed to investigate the relationship between hepatic steatosis (HS) evaluated by biopsy and visceral adiposity assessed computed tomography in lean living liver donor candidates determine risk factors for non-alcoholic fatty disease (NAFLD).This retrospective included 250 (body mass index, < 23 kg/m2 ) potential donors (mean age, 31.1 ± 8.6 years; 141 men) who had undergone abdominal 2017 2018. Anthropometry, laboratory parameters, body composition, degree of HS were evaluated....
PURPOSE: To describe and determine clinical importance of two-phase computed tomographic (CT) findings hepatic venous congestion after living donor liver transplantation (LDLT) with right lobe graft. MATERIALS AND METHODS: Forty-eight patients underwent (hepatic arterial phase portal [PVP]) CT at 1, 2, 4 weeks LDLT. Images were evaluated for attenuation difference in areas congestion, opacification peripheral veins those areas, changes follow-up CT. correlated serum bilirubin level. Fisher...
The purpose of this study was to summarize and illustrate the sonographic appearance hepatic hemangiomas with arterioportal shunt correlate them CT MRI findings.High-flow tend be seen as hypoechoic lesions at sonography. In presence fatty infiltration in liver, they may accompany peritumoral low-echoic areas presumably caused by sparing similar a hyperattenuating or hyperintense rim on unenhanced MR chemical shift imaging. Color Doppler sonography reveal intratumoral flows, large feeding...
There is no consensus regarding selection criteria on liver transplantation (LT) for hepatocellular carcinoma (HCC), especially living donor transplantation, although emerging evidence has been found the effectiveness of bridging or downstaging.We evaluated long-term outcomes patients who underwent LT with without downstaging HCC.This retrospective study included 896 recipients HCC between June 2005 and May 2015. Recurrence-free survival (RFS), overall (OS), their associated factors were...
The purpose of this study was to evaluate the efficacy contrast-enhanced CT and Doppler sonography in diagnosis hepatic artery pseudoaneurysm after adult living-donor liver transplantation (LDLT).Because patients with LDLT can have diverse clinical presentations, routine imaging follow-up is important for early detection. Although limited showing pseudoaneurysm, CT, especially MDCT arteriography, effective it most patients.
Objective. The purpose of this study was to compare contrast-enhanced sonography with 3-phase computed tomography (CT) in assessing the therapeutic response hepatocellular carcinomas (HCCs) treated transcatheter arterial chemoembolization (TACE). Methods. Twenty-nine nodular HCCs TACE were examined sonography, helical CT, and conventional angiography. Contrast-enhanced sonographic CT findings interpreted separately prospectively for presence or absence contrast enhancement HCCs. Conventional...
To establish optimal Doppler ultrasonographic (US) venous pulsatility index and computed tomographic (CT) criteria for right hepatic vein (RHV) stenosis after living donor liver transplantation (LDLT) to compare accuracies of these methods by using receiver operating characteristic (ROC) analysis.This retrospective study was approved an institutional review board; informed consent waived. Eighty patients (48 men, 32 women; mean age, 51.5 years +/- 9.2 [standard deviation]) underwent US CT...
Hepatic Outflow Obstruction at Middle Vein Tributaries or Inferior Right Veins After Living Donor Liver Transplantation with Modified Lobe Graft: Comparison of CT and Doppler UltrasoundHye Jeon Hwang1, Kyoung Won Kim1, Woo Jeong1 2, So Yeon Kim1 3, Gi-Won Song4, Shin Hwang4 Sung-Gyu Lee4Audio Available | Share
Secure reconstruction of the right hepatic vein (RHV) is essential for successful implantation a liver graft during living donor transplantation (LDLT). To develop reliable surgical techniques RHV reconstruction, we performed 3 concurrent studies: simulation study using fluid dynamics experimental model and computational model; an observational analyzing hemodynamic changes radiological interventions stenosis; prospective clinical establishing hemodynamics-compliant techniques. The...