Publications by authors named "Juil Park"
Article Synopsis
- The study aimed to identify factors that affect the success of catheter-directed sclerotherapy (CDS) for treating ovarian endometriomas and to propose criteria for patient selection.
- It analyzed data from 323 women who underwent CDS from 2015 to 2023, focusing on endometrioma characteristics and procedural techniques.
- Key findings included that endometriomas smaller than 3 cm, those with T2 dark signal intensity, and using transvaginal access were linked to higher chances of technical failure during the procedure.
Background There are insufficient data comparing resorbable microspheres (RMs) with permanent trisacryl gelatin microspheres (TAGMs) for uterine artery embolization (UAE). Purpose To compare therapeutic efficacy and clinical outcomes in participants with symptomatic fibroids after UAE with RMs or TAGMs. Materials and Methods This randomized controlled trial included participants undergoing UAE for symptomatic fibroids at a single institution (from May 2021 to May 2023).
View Article and Find Full Text PDFObjective: To evaluate the outcomes of drug-eluting bead transarterial chemoembolization (DEB-TACE) according to the size of the beads for the treatment of small hepatocellular carcinoma (HCC).
Materials And Methods: This retrospective study included 212 patients with a single HCC ≤5 cm from five tertiary institutions. One hundred and nine patients were treated with 70-150-µm doxorubicin DEBs (group A), and 103 patients received 100-300-µm doxorubicin DEBs (group B).
Purpose: The purpose of this study is to elucidate the patterns of recurrence of hepatocellular carcinoma and to analyze factors that can predict recurrence after complete response to radioembolization.
Materials And Methods: A total of 289 consecutive patients who underwent radioembolization for the treatment of hepatocellular carcinoma at a single tertiary center were retrospectively reviewed. Baseline characteristics were collected and compared between the group showing complete response and the group showing noncomplete response.
Objective: This study aimed to evaluate the safety and efficacy of intranodal lymphangiography and thoracic duct embolization (TDE) for chyle leakage (CL) after thyroid surgery.
Materials And Methods: Fourteen patients who underwent intranodal lymphangiography and TDE for CL after thyroid surgery were included in this retrospective study. Among the 14 patients, 13 underwent bilateral total thyroidectomy with neck dissection (central compartment neck dissection [CCND], n = 13; left modified radical neck dissection (MRND), n = 11; bilateral MRND, n = 2), and one patient underwent left hemithyroidectomy with CCND.
Objective: To evaluate the role of percutaneous pancreatic stent placement in postoperative pancreaticojejunostomy stenosis (PJS).
Materials And Methods: This retrospective single-center study included seven procedures in five patients (four males and one female; median age, 63 years) who underwent percutaneous pancreatic stent placement for postoperative PJS between January 2005 and December 2021. The patients were referred to interventional radiology because of unfavorable anatomy or bowel abnormalities.
Objective: To assess the safety and efficacy of balloon dilatation under dual guidance using fluoroscopy and bronchoscopy for treating bronchial stenosis following lung transplantation (LT), and to elucidate the factors associated with patency after the procedure.
Materials And Methods: From September, 2012, to April, 2021, 50 patients (mean age ± standard deviation, 54.4 ± 12.
Purpose: To evaluate the effectiveness and safety of transarterial embolization (TAE) for chronic Achilles tendinopathy (AT) refractory to conservative treatment.
Materials And Methods: This retrospective study included 20 patients (12 men and 8 women; mean age, 30.3 years) who received TAE using imipenem/cilastatin sodium for refractory chronic AT from May 2019 to April 2021.
Background: A diverse clinical course after the spontaneous rupture of hepatocellular carcinoma (HCC) renders nonstandardized treatment protocols.
Purpose: To evaluate clinical course and role of transcatheter arterial embolization (TAE) in patients with rupture of HCC.
Materials And Methods: This retrospective study included 127 patients who were treated for ruptured HCC at single institution between 2005 and 2014.
Purpose: To determine whether arterioportal shunting to the contralateral lobe attenuates liver function and hypertrophy of the nontargeted liver after radioembolization in patients with hepatocellular carcinoma (HCC).
Materials And Methods: The current retrospective study included 46 patients who received radioembolization for HCC contained within the right lobe between 2012 and 2020. The patients were divided into the following groups on the basis of the presence and extent of arterioportal shunting: patients with retrograde arterioportal shunting to the left lobe (contralateral group) and patients with arterioportal shunt limited to the right lobe or no arterioportal shunt (control group).
Purpose: To evaluate the clinical value of tumor volume-measurement using magnetic resonance (MR) volumetry for predicting prognosis after surgical resection of single small-to-medium-sized hepatocellular carcinoma (HCC) (≤5cm).
Method: This retrospective study included 162 consecutive patients who underwent preoperative gadoxetic acid-enhanced MRI and subsequent surgical resection for single HCC (≤5cm). Tumor volume was measured at hepatobiliary phase of MR images using semi-automated three-dimensional volumetric software program.
Objectives: To identify the agreement on Lung CT Screening Reporting and Data System 4X categorization between radiologists and an expert-adjudicated reference standard and to investigate whether training led to improvement of the agreement measures and diagnostic potential for lung cancer.
Methods: Category 4 nodules in the Korean Lung Cancer Screening Project were identified retrospectively, and each 4X nodule was matched with one 4A or 4B nodule. An expert panel re-evaluated the categories and determined the reference standard.
Purpose: This study was aimed to investigate the value of quantitative ultrasound (US) parameters from radiofrequency (RF) data analysis for assessing hepatic steatosis, using controlled attenuation parameter (CAP)-based steatosis grades as the reference standard.
Methods: We analyzed 243 participants with both B-mode liver US with RF data acquisition and CAP measurements. On B-mode US images, hepatic steatosis was visually scored (0/1/2/3, none/mild/moderate/severe), and the hepatorenal index (HRI) was calculated.
Background: Intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) parameters may reflect perfusion and diffusion changes in hepatic sinusoidal obstruction syndrome (SOS).
Purpose: To investigate the feasibility of IVIM-DWI in the noninvasive assessment of hepatic SOS in an experimental rat model.
Study Type: Animal study.
Objectives: This study was conducted in order to determine the prognostic value of MRI for extramural venous invasion (EMVI) in rectal cancer compared to pathology and to assess the diagnostic performance of multireaders.
Methods: We retrospectively enrolled 222 patients (M:F = 148:74; mean age ± standard deviation, 61.5 ± 12 years) with histopathologically proven rectal cancers who underwent preoperative MRI between 2007 and 2016.
Objectives: To validate the performances of two prediction models (Brock and Lee models) for the differentiation of minimally invasive adenocarcinoma (MIA) and invasive pulmonary adenocarcinoma (IPA) from preinvasive lesions among subsolid nodules (SSNs).
Design: A retrospective cohort study.
Setting: A tertiary university hospital in South Korea.
Purpose: To determine the necessity of preprocedural biliary drainage prior to chemoembolisation for hepatocellular carcinoma (HCC) with bile duct invasion.
Materials And Methods: The study included 52 patients who received chemoembolisation for unresectable HCC invading bile duct and causing hyperbilirubinemia (>3 mg/dL). Patients were divided into three groups according to biliary drainage and its effect: effective drainage (n=21), ineffective drainage (n=17), and non-drainage (n=14).
Background: Advanced virtual monochromatic reconstruction from dual-energy brain CT has not been evaluated in children.
Objective: To determine the most effective advanced virtual monochromatic imaging energy level for maximizing pediatric brain parenchymal image quality in dual-energy unenhanced brain CT and to compare this technique with conventional monochromatic reconstruction and polychromatic scanning.
Materials And Methods: Using both conventional (Mono) and advanced monochromatic reconstruction (Mono+) techniques, we retrospectively reconstructed 13 virtual monochromatic imaging energy levels from 40 keV to 100 keV in 5-keV increments from dual-source, dual-energy unenhanced brain CT scans obtained in 23 children.
Purpose: To evaluate the value of pre-radiofrequency ablation (RFA) MR and post-RFA CT registration for the assessment of the therapeutic response of hepatocellular carcinoma (HCC).
Materials And Methods: A total of 178 patients with single HCC who received RFA as an initial treatment and had available pre-RFA MR and post-RFA CT images were included in this retrospective study. Two independent readers (one experienced radiologist, one inexperienced radiologist) scored the ablative margin (AM) of treated tumors on a four-point scale (1, residual tumor; 2, incomplete AM; 3, borderline AM; 4, sufficient AM), in two separate sessions: (1) visual comparison between pre-and post-RFA images; (2) with addition of nonrigid registration for pre- and post-RFA images.
Objective: To investigate whether "follow-up and surgical resection after interval growth" can negatively influence recurrence or mortality in patients with persistent part-solid nodules (PSNs) with solid components ≤5 mm.
Methods: One hundred twenty five surgically resected persistent PSNs with solid components ≤5 mm in 125 individuals were evaluated. Of the 125 PSNs, 54 and 71 PSNs were categorized into interval growth and immediate surgery groups, respectively.