Abstract:
:Endoscopic therapy by balloon dilation and placement of multiple large-bore plastic stents is the treatment of choice for benign biliary stricture. This approach is effective but it typically requires multiple endoscopic sessions given the short duration of stent patency. The endoscopic approach for treatment of bile leak involves the placement of a stent with or without biliary sphincterotomy. The self-expandable metal stent (SEMS) has traditionally been used for palliation of malignant biliary strictures given the long duration of stent patency owing to their larger stent diameter. Recently, SEMS has been used in a variety of benign biliary strictures and leaks, especially with the design of the covered self-expandable metal stent (CSEMS), which permits endoscopic-mediated stent removal. The use of CSEMS in benign biliary stricture could potentially result in a decrease in endoscopic sessions and it is technically easier when compared to placement of multiple plastic stents. However, complications such as cholecystitis due to blockage of cystic duct, stent migration, infection and pancreatitis have been reported. The potential subsegmental occlusion of contralateral intrahepatic ducts also limits the use of CSEMS in hilar stricture. Certain techniques and improvement of stent design may overcome these challenges in the future. Thus, CSEMS may be appropriate in only highly selected conditions, such as refractory benign biliary stricture, despite multiple plastic stent placement or difficult to treat bile duct stricture from chronic pancreatitis, and should not be used routinely. This review focuses on the use of fully covered self-expandable metal stent for benign biliary strictures and bile leaks.
journal_name
Korean J Radioljournal_title
Korean journal of radiologyauthors
Pausawasadi N,Soontornmanokul T,Rerknimitr Rdoi
10.3348/kjr.2012.13.S1.S67subject
Has Abstractpub_date
2012-01-01 00:00:00pages
S67-73eissn
1229-6929issn
2005-8330journal_volume
13 Suppl 1pub_type
杂志文章,评审abstract:Objective:To compare the T1-weighted spectral presaturation with inversion-recovery sequences (T1 SPIR) with T2-weighted turbo spin-echo sequences (T2 TSE) on 3T magnetic resonance arthrography (MRA) in the evaluation of the subscapularis (SSC) tendon tear with arthroscopic findings as the reference standard. Material...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.2.320
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:Although three-dimensional time-of-flight magnetic resonance angiography (3D TOF-MRA) is used frequently as a follow-up tool to assess the response of arteriovenous malformations (AVMs) after radiosurgery, the diagnostic accuracy of 3D TOF-MRA is not well known. We evaluated the diagnostic accuracy of contras...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2009.10.4.333
更新日期:2009-07-01 00:00:00
abstract::The guideline for the management of hepatocellular carcinoma (HCC) was first developed in 2003 and revised in 2009 by the Korean Liver Cancer Study Group and the National Cancer Center, Korea. Since then, many studies on HCC have been carried out in Korea and other countries. In particular, a substantial body of knowl...
journal_title:Korean journal of radiology
pub_type: 杂志文章,实务指引
doi:10.3348/kjr.2015.16.3.465
更新日期:2015-05-01 00:00:00
abstract::Percutaneous interventional procedures under image guidance, such as biopsy, ethanol injection therapy, and radiofrequency ablation play important roles in the management of hepatocellular carcinomas. Although uncommon, the procedures may result in tumor implantation along the needle tract, which is a major delayed co...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2008.9.3.268
更新日期:2008-05-01 00:00:00
abstract::(11)C-methionine (Met) positron emission tomography (PET) is one of the most commonly used PET tracers for evaluating brain tumors. However, few reports have described tips and pitfalls of (11)C-Met PET for general practitioners. Physiological (11)C-Met uptake, anatomical variations, vascular disorders, non-tumorous l...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2016.17.3.424
更新日期:2016-05-01 00:00:00
abstract::Imaging features of metastases to the urinary system may closely mimic primary urinary tract tumors, and differential diagnosis by imaging alone may be problematic or even impossible in some cases. The main purpose of this article was to familiarize radiologists with imaging findings of metastasis to the urinary syste...
journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2018.19.4.742
更新日期:2018-07-01 00:00:00
abstract::We report two cases of paratracheal air cyst discovered incidentally at neck ultrasonography and confirmed at CT. The cysts were located at the inferoposterior aspect of the right lobe of the thyroid. Ultrasonography revealed an ill-defined hypoechoic mass containing hyperechoic foci which mimicked calcifications. Nec...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2003.4.2.136
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVE:To investigate the diagnostic performance of contrast-enhanced ultrasound (CEUS) and its role as a second-line imaging modality after gadoxetate-enhanced MRI (Gd-EOB-MRI) in the diagnosis of hepatocellular carcinoma (HCC) among at risk observations. MATERIALS AND METHODS:We prospectively enrolled participant...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2020.0973
更新日期:2020-11-03 00:00:00
abstract:OBJECTIVE:The purpose of this study was to develop a new method for automated lung nodule detection in serial section CT images with using the characteristics of the 3D appearance of the nodules that distinguish themselves from the vessels. MATERIALS AND METHODS:Lung nodules were detected in four steps. First, to redu...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2008.9.1.1
更新日期:2008-01-01 00:00:00
abstract::We describe here a case of intraductal tubular carcinoma of the main pancreatic duct. Gadolinium-enhanced pancreas magnetic resonance (MR) imaging showed an enhancing mass that was confined in the dilated main pancreatic duct of the pancreatic body, along with dilatation of the upstream main pancreatic duct and chroni...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2008.9.5.473
更新日期:2008-09-01 00:00:00
abstract::Placenta accreta spectrum (PAS) is an abnormal placental adherence or invasion of the myometrium or extrauterine structures. As PAS is primarily staged and managed surgically, imaging can only guide and facilitate diagnosis. But, imaging can aid in preparations for surgical complexity in some cases of PAS. Ultrasound ...
journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2020.0580
更新日期:2021-02-01 00:00:00
abstract:Objective:To compare correlations between pulmonary function test (PFT) results and different reconstruction algorithms and to suggest the optimal reconstruction protocol for computed tomography (CT) quantification of low lung attenuation areas and airways in healthy individuals. Materials and Methods:A total of 259 s...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.6.1187
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the clinical efficacy as well as long-term clinical outcomes of superselective microcoil embolization for lower gastrointestinal bleeding (LGIB). MATERIALS AND METHODS:Between 1997 and 2009, 26 patients with intended transcatheter embolotherapy for LGIB were retrospectively reviewed. Embolization...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2013.14.2.259
更新日期:2013-03-01 00:00:00
abstract:OBJECTIVE:To assess diffusion tensor imaging (DTI) parameters of the hepatic parenchyma for the differentiation of biliary atresia (BA) from Alagille syndrome (ALGS). MATERIALS AND METHODS:This study included 32 infants with BA and 12 infants with ALGS groups who had undergone DTI. Fractional anisotropy (FA) and mean ...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2019.0824
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVE:To evaluate spine magnetic resonance imaging (MRI) inter-reader and intra-reader reliabilities using the thoracolumbar injury classification system and severity score (TLICS) and to analyze the effects of reader experience on reliability and the possible reasons for discordant interpretations. MATERIALS AND ...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2015.16.4.889
更新日期:2015-07-01 00:00:00
abstract::The use of computed tomography (CT) in emergency departments has increased over several decades, as physicians increasingly depend on imaging for diagnoses. Patients and medical personnel are put at risk due to frequent exposure to and higher levels of radiation, with very little evidence of improvements in outcomes. ...
journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2018.0416
更新日期:2019-03-01 00:00:00
abstract::We describe the imaging features of two cases of biliary ascariasis. Ultrasonography and CT showed no specific abnormal findings, but MR cholangiography clearly demonstrated an intraductal linear filling defect that led to the correct diagnosis. MR cholangiography is thus a useful technique for the diagnosis of biliar...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2001.2.3.175
更新日期:2001-07-01 00:00:00
abstract:Objective:To investigate the technical safety and clinical efficacy of a double-stent system with long duodenal extension in patients with malignant extrahepatic biliary obstruction. Materials and Methods:This prospective study enrolled 48 consecutive patients (31 men, 17 women; mean age, 61 years; age range, 31-77 ye...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.2.230
更新日期:2018-03-01 00:00:00
abstract::Diabetes mellitus (DM) can accompany many musculoskeletal (MSK) diseases. It is difficult to distinguish the DM-related MSK diseases based on clinical symptoms alone. Sonography is frequently used as a first imaging study for these MSK symptoms and is helpful to differentiate the various DM-related MSK diseases. This ...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2016.17.2.245
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:To explore the in-vivo 1H- MR spectral features of adnexal lesions and to characterize the spectral patterns of various pathologic entities. MATERIALS AND METHODS:Thirty-one patients with surgically and histopathologically confirmed adnexal lesions underwent short echo-time STEAM (stimulated echo acquisition...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2002.3.2.105
更新日期:2002-04-01 00:00:00
abstract::This report concerns a 4-month-old infant with progressive prominent and redness of his left eye since birth. This report concerns a 4-month-old infant with progressive prominent redness of his left eye since birth. Angiography revealed a congenital pial arteriovenous fistula between the temporal branch of the left po...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2013.14.3.497
更新日期:2013-05-01 00:00:00
abstract:Objective:To investigate the diagnostic yield of contrast-enhanced computed tomography (CT) in Crohn's disease (CD) patients presenting with acute severe lower gastrointestinal bleeding (LGIB), and the role of CT in predicting the risk of rebleeding. Materials and Methods:A consecutive series of 110 CD patients presen...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.6.1089
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the feasibility of texture analysis on non-contrast-enhanced T1 maps of cardiac magnetic resonance (CMR) imaging for the diagnosis of myocardial injury in acute myocardial infarction (MI). MATERIALS AND METHODS:This study included 68 patients (57 males and 11 females; mean age, 55.7 ± 10.5 years)...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2019.0969
更新日期:2020-11-30 00:00:00
abstract:OBJECTIVE:To investigate whether there is a relationship between texture analysis parameters of apparent diffusion coefficient (ADC) maps and histopathologic features of MCF-7 and MDA-MB-231 xenograft models. MATERIALS AND METHODS:MCF-7 estradiol (+), MCF-7 estradiol (-), and MDA-MB-231 xenograft models were made with...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2014.15.5.591
更新日期:2014-09-01 00:00:00
abstract::Within six months of the discovery of X-ray in 1895, the technology was used to scan the interior of the human body, paving the way for many innovations in the field of medicine, including an ultrasound device in 1950, a CT scanner in 1972, and MRI in 1980. More recent decades have witnessed developments such as digit...
journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2013.14.2.139
更新日期:2013-03-01 00:00:00
abstract::A 64-year-old male patient with liver cirrhosis underwent a CT study for hepatocellular carcinoma surveillance, which demonstrated a 1.4-cm hypervascular subcapsular tumor in the liver. On gadoxetic acid-enhanced MRI, the tumor showed brisk arterial enhancement and persistent hyperenhancement in the portal phase, but ...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2013.14.5.769
更新日期:2013-09-01 00:00:00
abstract::A primary fibroxanthoma of the central nervous system is very rare. We present a case of an infantile fibroxanthoma that arose from the cranial dura mater in a six-month-old girl with US, MRI and PET/CT features that mimicked a meningioma. The tumor appeared as a large, well-circumscribed echogenic mass in the right p...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2009.10.4.402
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:A hepatic mesenchymal hamartoma is an uncommon benign tumor in children and little is known about the spectrum of its radiological features. The purpose of this study is to describe the spectrum of radiological features of a hepatic mesenchymal hamartoma in children. MATERIALS AND METHODS:Thirteen children w...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2007.8.6.498
更新日期:2007-11-01 00:00:00
abstract:Objective:To evaluate the ultrasonography (US) features and clinical characteristics of columnar cell variant of papillary thyroid carcinoma (CCV-PTC) that can predict disease progression. Materials and Methods:Six cases of CCV-PTC were identified via surgical pathology analysis at our institution from 1994 to 2016. T...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.5.1000
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:To retrospectively compare the diagnostic performances of two different ultrasound (US)-guided core needle biopsy (CNB) techniques for intermediate or low suspicion thyroid nodules. MATERIALS AND METHODS:Between August 2015 and December 2016, two different biopsy techniques were alternatively applied for 248...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.0841
更新日期:2019-10-01 00:00:00