정환훈 교수

Tumor vascularity is an important indicator for differential diagnosis, tumor growth, and prognosis. Superb micro-vascular imaging (SMI) is an innovative ultrasound technique for vascular examination that uses a multidimensional filter to eliminate clutter and preserve extremely low-velocity flows. Theoretically, SMI could depict more vessels and more detailed vascular morphology, due to the increased sensitivity of slow blood flow. Here, we report the early experience of using SMI in 21 breast

OBJECTIVE: To investigate the distinctive computed tomographic(CT) features of pyogenic liver abscess (PLA) caused by Klebsiella pneumoniae (KLA). METHODS: 114 PLA patients (62 men, 52 women, age range 25-89 years, mean age 60.9 years) with positive yield of blood or pus cultures were divided into 2 groups; KLA group (n = 58) and non-KLA group (n = 56). We retrospectively reviewed the CT images. The independent-sample t-test, X2 test, or Fisher's exact test were used with SPSS for windows versio

Clinical manifestations and imaging findings of mantle cell lymphoma involving gastrointestinal tract were evaluated. The subjects were 7 cases of mantle cell lymphoma involving the gastrointestinal tract. All cases were pathologically confirmed in our hospital during the period from April 1994 to July 2000. Five patients were male and 2 were female, and their age ranged from 49 to 63 years (average 57.4). The objectives were: 1) characteristics and distribution of multiple polyposis, 2) presenc

BACKGROUND: The risk of complications and discomfort in patients who undergo prolonged infusion of a thrombolytic agent is significant when conventional catheter-directed thrombolysis is used to treat lower extremity deep vein thrombosis (DVT). PURPOSE: To evaluate the feasibility and safety of single-session endovascular treatment for symptomatic lower extremity DVT. MATERIAL AND METHODS: Single-session endovascular treatment for lower extremity DVT was performed on 29 limbs in 26 patients diag

BACKGROUND: Feasibility of single-session mechanical thrombetomy, without thrombolytics, for the treatment of the subacute deep vein thrombosis (DVT) of the lower extremity remains poorly described. PURPOSE: To evaluate the feasibility and efficacy of single-session endovascular treatment of DVT of the lower extremity that is more than 10 days old. MATERIALS AND METHODS: From January 2010 to December 2013, single-session endovascular treatment was performed in 21 limbs of 21 patients (8 men and

PURPOSE: To develop formulas that predict the optimal length of a peripherally inserted central catheter (PICC) from variables measured on anteroposterior (AP) chest radiography (CXR). MATERIALS AND METHODS: A total of 134 patients who underwent PICC insertion at the angiography suites were included. Clinical information such as patient height, weight, sex, age, cubital crease to inferior carina border length (CCL), and approach side were recorded. The following variables via measurement on AP-C

Background:Interventional endovascular treatments of dysfunctional arteriovenous (AV) access for hemodialysis can cause pain and discomfort to the patients. Ultrasound-guided brachial plexus block (BPB) is an alternative regional anesthesia method, but conventional BPB using ropivacaine or bupivacaine may cause long-lasting motor power loss, significantly reducing patient satisfaction. This study aimed to introduce BPB using only 1% lidocaine, which induces sensory loss while minimizing motor bl

Single-session PMT is safe and effective for immediate symptom relief in acute and subacute DVT patients. However, recurrence occurred more frequently in patients with subacute DVT than in those with acute DVT. Anatomic success of the procedure and duration of symptoms were independent predictors of DVT recurrence.