Jin Wook Kim

Short-term VD secondary to the surgical insult and the recurrence of the tumor were strong predictors of long-term visual outcomes after surgical treatment for CRP. STR alone may be an ineffective strategy for achieving tumor control and optimal visual outcomes in patients with CRP.

OBJECTIVES: We investigated the radiosurgical outcomes of patients with nonbenign meningiomas retrospectively and sought to identify prognostic factors for local tumor control after radiosurgery with an emphasis on histopathology. METHODS: Between 1998 and 2010, 35 patients with 49 atypical or anaplastic meningiomas were treated with radiosurgery. The mean tumor volume and marginal irradiation dose were 3.5 cm3 (range 0.3-25.3) and 16 Gy (range 12-21), respectively. RESULTS: The actuarial local

OBJECTIVES: We prospectively investigated the efficacy of corticosteroid medication in salvaging acute hearing deterioration after radiosurgery for vestibular schwannoma (VS) and analyzed prognostic factors for hearing preservation. METHODS: Forty-one patients with serviceable hearing treated with gamma knife radiosurgery between 2004 and 2006 were included. Nineteen patients who suffered acute hearing deterioration after radiosurgery were treated with oral corticosteroids. The efficacy of corti

Since the World Health Organization (WHO) classification for central nervous system neoplasms was declared in 2000, chordoid glioma of the third ventricle has been noted as a newly recognized tumor for central nervous system neoplasms. Although there is not enough universal experience to know the nature of this tumor due to its rarity, the origin of chordoid glioma was guardedly proposed to be the ependymal cells of the third ventricle. Such an idea has been primarily based on the specific locat

Our initial experience demonstrates that mCT with high-quality imaging offers very useful information in various clinical situations.

Objectives: Adoption of hospital information systems offers distinctive advantages in healthcare delivery. First, implementation of consolidated hospital information system in Seoul National University Hospital led to significant improvements in quality of healthcare and efficiency of hospital management. Methods: The hospital information system in Seoul National University Hospital consists of component applications: clinical information systems, clinical research support systems, administrativ

Objective : With improved technology, the values of intraoperative computed tomography (iCT) have been reevaluated. We describe our early clinical experience with a mobile CT (mCT) system for iCT and discuss its clinical applications, advantages and limitations. Methods : Compared with intraoperative magnetic resonance imaging, this mCT system has no need for major reconstruction of a preexisting operating room for shielding, or for specialized instruments or equipment. Patients are placed on a

이 연구는 명칭의 음운적 유사성 수준이 다르게 제시된 속성 귀납 추론 과제에서 유아가 명칭을 범주의 상징으로 여기고 귀납을 하는지 대상이 갖는 속성 중의 하나라 생각하고 명칭 간 유사성에 기초한 귀납을 하는지를 밝히고 명칭의 친숙성에 따라 속성 귀납에 차이가 나타나는지를 살펴보고자 했다. 실험에서는 4세 유아 100명을 대상으로 하나의 표적명칭과 두 개의 선택명칭을 제시하고, 표적명칭이 어느 선택명칭과 속성을 공유하는지 추론하게 하였다. 선택명칭은 표적명칭과 음운적으로 유사한 명칭과, 표적명칭과 음운적으로 유사하지 않은 명칭이었다. 결과는 유아가 표적명칭과 음운적으로 유사한 명칭을 가진 대상의 속성을 더 많이 귀납하고, 속성 귀납의 결과는 유사성 기반 모델이 예측하는 결과를 따르는 것으로 나타났다. 이러한 결과는 유아가 명칭이 범주를 나타낸다는 사전 지식을 가지고 있다기보다는 명칭을 대상의 속성으로 여기고 유사성에 기반해 속성을 귀납했음을 보여준다.

본 연구는 명칭의 음운적 유사성 수준이 다르게 제시된 명칭 확장 과제에서 유아가 명칭을 이미 알고 있는 대상과 음운적으로 유사한 명칭을 제시하였을 때, 유사한 명칭을 가진 대상이 알고 있던 대상과 외양이 유사할 것이라고 기대하는지를 알아보았다. 또한 명칭을 알고 있는 대상이 친숙할수록 이러한 경향이 더 강하게 나타나지를 살펴보았다. 실험에서는 4세 유아 100명을 대상으로 동물 사진과 명칭을 표적자극과 표적명칭으로, 네 개의 동물 사진을 선택자극으로 제시했다. 그 다음, 표적명칭과 유사한 명칭을 제시하고 네 개의 선택자극 중 선택하도록 하였다. 선택자극은 표적자극과 외양적으로 유사한 정도가 각각 다른 자극이었다. 결과는 표적명칭과 음운적으로 유사한 명칭일수록 유아는 표적자극과 외양이 유사한 대상에 명칭을 확장하는 것으로 나타났다. 이러한 결과는 유아가 명칭이 범주를 나타낸다는 사전 지식을 가지고 있다기보다는 명칭을 대상의 속성으로 여기고 유사성에 기반 해 명칭을 확장했음을 보여준다.

Chronic hepatitis C (CHC) has become a curable disease with the advent of potent antiviral drug. Interferon-free regimens with direct-acting antivirals (DAAs) have not only reduced adverse drug reactions but also increased sustained virologic response (SVR) rates. The possibility of viral eradication is no longer an urgent clinical issue. Instead, the cost of DAA remains as a major barrier to the universal implementation of this magic bullet to all infected patients. Clinicians are challenged to

Objective : The authors have speculated that metastatic brain lesions from renal cell carcinoma (RCC) show diverse radiological patterns and tumor responses after Gamma knife surgery (GKS), and have hypothesized that these can be predicted from tumor radiological characteristics. The goal of the current study was to identify the radiological characteristics of RCC brain metastases and the predictors of initial radiosurgical response after GKS. Methods : A retrospective analysis was performed on