• 제목/요약/키워드: Neuroimaging

검색결과 216건 처리시간 0.038초

Advanced Neuroimaging Applications

  • Moseley, Michael E.
    • 대한자기공명의과학회:학술대회논문집
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    • 대한자기공명의과학회 2001년도 제6차 학술대회 초록집
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    • pp.121-129
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    • 2001
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Neuroimaging and Clinicopathologic Findings of Lymphoplasmacyte-rich Meningioma, Mimicking Malignancy: Case Report

  • Lee, Moon Young;Ahn, Kookjin;Lee, Youn Soo;Jeun, Sin Soo
    • Investigative Magnetic Resonance Imaging
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    • 제19권1호
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    • pp.62-66
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    • 2015
  • Lymphoplasmacyte-rich meningioma is a rare WHO Grade I subtype of meningioma. The lymphoplasmacyte-rich meningioma does not have typical imaging features of a meningioma so it can mimic intracranial inflammatory condition or brain neoplasm. We report the clinicopathologic features of lymphoplasmacyte-rich meningioma in a 35-year-old woman. She suffered from progressive headache, dizziness and tinnitus over two years. The tumor exhibited atypical neuroimaging features, including obvious peritumoral edema and irregular enhancing components. She underwent total resection and histologic examination revealed a meningioma with numerous plasma cells. Her symptoms have since resolved and there has been no evidence of tumor recurrence after one year of follow-up.

환청의 기전과 신경해부학 (Mechanism and Neuroanatomy of Auditory Hallucination)

  • 이승환;서광윤
    • 수면정신생리
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    • 제8권2호
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    • pp.98-106
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    • 2001
  • Auditory hallucinations are cardinal feature of psychosis. But the mechanism of hallucinated speech is unknown. The hypothesis that these hallucinations arise from pathologically altered brain monitoring system underlying speech perception is influential. With the help of rapidly developing neuroimaging study technologies, many researchers have been finding new organic deficits in the hallucinated schizophrenic patient's brain. In this article, we reviewed the general appearance of hallucination, a computer simulation model of hallucination and several neuroimaging study findings on hallucinating schizophrenic patients. In conclusion, we presented the presumptive mechanism of hallucination based on the anatomical dysfunction of schizophrenia.

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뇌량의 형태검출 및 측정 시스템의 설계 및 구현 (Design and Implementation of Measurement System of Carpus Callosum)

  • 최유주;태우석;홍승봉;김명희
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2002년도 춘계학술발표논문집 (하)
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    • pp.1235-1238
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    • 2002
  • 본 연구에서는 선천적 뇌량의 기형 판별 및 타질환에 의한 뇌량의 형태학적 변화추적을 위한 뇌량의 형태검출 및 측정 시스템을 설계, 구현하였다. 개발 시스템은 대뇌에 대한 자기공명영상의 정중시상단면을 기반으로 간단한 사용자 인터랙션을 통하여 초기 뇌량 영역을 선택하고, 영역확장법과 윤곽선 검출기법을 통하여 뇌량의 형태를 검출하였다. 또한, Witelson의 영역측정 기준에 따라, 뇌량의 영역을 7개의 영역으로 구분하고, 각 구성영역의 크기를 자동 측정함으로써, 뇌량의 형태학적 변화분석이 용이하도록 하였다.

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A brief review of non-invasive brain imaging technologies and the near-infrared optical bioimaging

  • Beomsue Kim;Hongmin Kim;Songhui Kim;Young-ran Hwang
    • Applied Microscopy
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    • 제51권
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    • pp.9.1-9.10
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    • 2021
  • Brain disorders seriously affect life quality. Therefore, non-invasive neuroimaging has received attention to monitoring and early diagnosing neural disorders to prevent their progress to a severe level. This short review briefly describes the current MRI and PET/CT techniques developed for non-invasive neuroimaging and the future direction of optical imaging techniques to achieve higher resolution and specificity using the second near-infrared (NIR-II) region of wavelength with organic molecules.

Imaging of Abusive Head Trauma : A Radiologists' Perspective

  • Cheon, Jung-Eun;Kim, Ji Hye
    • Journal of Korean Neurosurgical Society
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    • 제65권3호
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    • pp.397-407
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    • 2022
  • Abusive head trauma (AHT) is the most common and serious form of child abuse and a leading cause of traumatic death in infants and young children. The biomechanics of head injuries include violent shaking, blunt impact, or a combination of both. Neuroimaging plays an important role in recognizing and distinguishing abusive injuries from lesions from accidental trauma or other causes, because clinical presentation and medical history are often nonspecific and ambiguous in this age group. Understanding common imaging features of AHT can increase recognition with high specificity for AHT. In this review, we discuss the biomechanics of AHT, imaging features of AHT, and other conditions that mimic AHT.