Hee-Jin Park

Incidental findings at MRI of the lumbar spine were common and associated with age and sex. Most were benign findings. An awareness of the prevalence of the incidental findings detected at MRI of the lumbar spine is helpful for diagnosing lesions not related to symptoms.

BACKGROUND: Previous studies have shown that magnetic resonance imaging (MRI) has a high sensitivity for peroneal tendon pathology but more studies with surgery as a reference standard are needed. PURPOSE: To evaluate the accuracy of MRI compared to surgery for characterizing chronic peroneal tendon pathology. MATERIAL AND METHODS: Ninety-seven patients (57 men, 40 women; mean age, 39 years; range, 15-64 years) with chronic lateral ankle instability underwent MRI followed by surgery, with a mean

본 연구의 목적은 팀제 조직에서 팀 리더의 임파워링 행동이 팀원들의 학습 행동과 팀 교류기억간의 관계에서 팀 효능감, 혁신성향 및 리더에 대한 신뢰가 매개하는 효과를 살펴보는 것이다. 이를 위해, 다양한 업종의 112개 팀 568명의 응답자들로부터 수집한 자료를 사용하여 구조방정식으로 분석하였다. 그 결과, 임파워링 리더 행동은 팀 효능감, 혁신성향 및 리더에 대한 신뢰와 정적 관련성이 있었고 팀 효능감, 혁신성향 및 리더에 대한 신뢰는 팀 학습 행동과 정적 관련성이 있었다. 임파워링 리더 행동과 팀 학습 행동의 관계를 팀 효능감, 혁신성향 및 리더에 대한 신뢰가 매개하였음을 밝혔다. 팀 효능감과 혁신성향은 팀 교류기억과 정적 관련성이 있었지만, 리더에 대한 신뢰는 팀 교류기억과 유의하지 않았다. 그리하여, 임파워링 리더 행동과 팀 교류기억의 관계를 팀 효능감과 혁신성향이 매개하였음을 밝혔지만, 리더에 대한 신뢰는 매개하지 않음을 나타냈다. 마지막으로, 연구결과에 따른 연구의 시사점

PURPOSE: To investigate clinical implications of delta neutrophil index (DNI) to discriminate adult onset Still's disease (AOSD) from sepsis. MATERIALS AND METHODS: We reviewed the medical records of 13 patients with AOSD and 33 gender and age-matched patients with sepsis. In all subjects, microbial tests were performed to exclude or confirm sepsis. All laboratory data were measured two or three times during the first 3 days and represented by their mean levels. DNI was measured automatically by

Most angioleiomyomas reveal a homogeneously hypoechoic echo texture with a circumscribed margin and show straight and linear vessels in the tumor with convergence to one point on color Doppler sonography. These characteristics may be helpful when differentiating angioleiomyomas from other circumscribed hypervascular soft tissue tumors.

Although these simulations employed only one threshold value of 10 V/m, which is rather on the lower end of stimulation threshold, the simulation results are expected to serve as guidelines for designing planar coils to be implanted in the brain for magnetic stimulation.

The interobserver agreement of the Kang system was almost perfect and was higher than in the study by Kang et al. Grade 0 cervical canal stenosis represents negative neurologic manifestations and grades 2 and 3 cervical canal stenosis represent positive neurologic manifestations. The Kang system and clinical manifestations are significantly correlated, especially in the older age group (≥ 50 years).

BACKGROUND: Quantitative magnetic resonance imaging (MRI) of cartilage has recently been applied to patients with osteoarthritis (OA). T2 mapping is a sensitive method of detecting changes in the chemical composition and structure of cartilage. PURPOSE: To establish baseline T2 values of glenohumeral joint cartilage at 3.0 T and compare T2 values among subjects with and without OA. MATERIAL AND METHODS: The study involved 30 patients (18 women, 12 men; median age, 67 years; age range, 51-78 year

BACKGROUND: Imaging findings of posterior cruciate ligament (PCL) injury may be equivocal, particularly when the patient has suffered a partial ligament tear. Some PCLs are positioned more horizontally, making it difficult to diagnose injury based on routine imaging planes alone due to partial volume artifact. PURPOSE: To evaluate the diagnostic accuracy of combining oblique coronal imaging (PCL view) with traditional orthogonal views for PCL evaluation. MATERIAL AND METHODS: This retrospective

When lung involvement of AAV is suspected on chest CT, lung biopsy should be recommended for the proper classification of AAV, due to the discordance rate between radiological and histological findings in MPA and EGPA patients, but not GPA patients.