Chang Hyun Lee

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OBJECTIVE Finding the anthropometric measure of visceral obesity is essential to clinical practice, because it predicts cardiovascular and metabolic risks. Sagittal abdominal diameter (SAD) has been proposed as an estimate of visceral adipose tissue (VAT). The aim of the present study was to evaluate the usefulness of SAD in predicting visceral obesity by(More)
OBJECTIVE To evaluate the inter-group differences in growth and the pathological results of nodular ground-glass opacities (GGOs) according to their size and focal solid portions. MATERIALS AND METHODS Ninety-six nodular GGOs in 55 individuals followed by CT for at least one month from an initial chest CT were included. Forty nodular GGOs in 30(More)
OBJECTIVE The aim of this study was to analyze the computed tomographic (CT) findings of atypical adenomatous hyperplasia (AAH) in the lung. MATERIALS AND METHODS The CT findings of AAHs in eight patients were retrospectively reviewed. The CT findings of each AAH lesion were evaluated for multiplicity, location, shape, size and internal density of the(More)
OBJECTIVE To evaluate the technical feasibility, performance, and interobserver agreement of a computer-aided classification (CAC) system for regional ventilation at two-phase xenon-enhanced CT in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS Thirty-eight patients with COPD underwent two-phase xenon ventilation CT with(More)
BACKGROUND Patients with chronic lateral ankle instability also have peroneal tendinopathy often. However, preoperative MRIs of these patients are vague in many cases. Our study was performed to see the reliability of MRI findings of peroneal tendinopathy in patients with chronic lateral ankle instability. METHODS MRI images for 82 patients who had(More)
Although fatigue fractures are not unusual in athletes and military personnel those of the pubic ramus are rare. We report three cases of fatigue fractures of the inferior pubic rami in two male recruits and one female military cadet. On the initial radiograph, most of the lesions were subtle and easy to overlook. However, bone scintigraphy provided more(More)
MicroRNAs (miRNAs), a class of small non-coding RNAs, have been reported to be functionally involved with cellular metabolism and a variety of diseases. The importance of miRNA expression and functional targeting has recently become a focus of intense research. However, their endogenous molecular targets have not been clearly identified despite multiple(More)
Neurogenic heterotopic ossification (NHO) is a process of benign bone formation and growth in soft tissues surrounding major synovial joints and is associated with central nervous system (CNS) injuries. It is a common complication in major CNS injuries, such as traumatic brain injury, spinal cord injury, and stroke. Here, we report the case of a 72-year-old(More)
In this article, we examined the performance of the voltammetric assay of caffeine using DNA immobilized onto a carbon nanotube paste electrode (DPE) and compared it with that of an ordinary carbon nanotube paste electrode (PE). Under optimal conditions, the working ranges for caffeine were from 0.1 to 12 mg l(-1) (for DPE) and 30-230 mg l(-1) (for PE).(More)
OBJECTIVE The aim of this study was to evaluate whether the difference in the degree of collateral ventilation between canine and swine models of bronchial obstruction could be detected by using xenon-enhanced dynamic dual-energy CT. MATERIALS AND METHODS Eight mongrel dogs and six pigs underwent dynamic dual-energy scanning of 64-slice dual-source CT at(More)