• Proceedings of the KSMRM Conference
• /
• 2002.11a
• /
• pp.84-84
• /
• 2002

목적： 야간성 전두협 발작 (Nocturnal frontal lobe epilepsy NFLE)은 임상적으로 특징적인 야간성 운동성 발작으로 잘 알려져 있지만 일반적인 MR 영상에서는 대부분에서는 특이한 소견을 보이지 않아 확산 텐서 영상 (DTI)에서의 이상 소견 발현 유무를 알아보고자 한다. 대상 및 방법： 임상적 소견과, EEG 소견으로 진단된 NFLE 환자 6명을 대상으로 DTI 영상을 촬영하였다. 남자 2명, 여자 4명으로 평균연령은 32세 이었다. DTI영상은 single shot spin echo EPI 펄스 열을 사용하였고 사용한 영상 변수는 b value는 0, 1000 s/$\textrm{mm}^2$, TR 10000 msec, TE 71.8/72.3 msec, matrix 128$\times$128 (256 reconstruction), FOV 23cm, 5mm thickness, 2mm interstice gap, NEX 1. 19 slices, time은 4min 21sec (25방향) 이었다. 대조군으로 정상 성인 10명 (평균연령 31세)에서 동일한 방법으로 DTI 영상을 시행하여 분할 비등방도 (fractional anisotropy) 영상을 얻고 전두엽 백질에서 분할 비등방도 값을 측정하여 NFLE 환자군과 비교하였다.

• Journal of Korean Medical classics
• /
• v.24 no.6
• /
• pp.125-130
• /
• 2011

중의학에는 골다공증이란 병명은 없으나 현대 골다공증의 병인병기와 임상특징에 근거하며 중의학의 "골위(骨痿)", "골비(骨痹)"의 범주에 속한다. 고대 중의문헌에서 골위의 병인은 비교적 복잡하며 병기의 변화 역시 다양하나 "기혈이 유양(濡養)작용을 하지 못하는 것"을 위주로 하는 주요한 병리특징이 있으며, 골비의 병인은 외사, 계절, 병위, 체질 등 복합적인 인소로 인하여 "기혈이 막히는 것(閉阻)"을 위주로 하는 주요한 병리특징이 있다. 골위와 골비의 증상표현은 대략 비슷하나 골위는 하지가 위약(痿弱)하여 사용할 수 없는 것이 특징이며, 골비는 대부분 전신통증을 위주로 하기에 치료법칙에 있어서도 각자의 특징이 있다. 그러므로 본 논문은 중의학이 골다공증의 이론기초를 인식하는 기초를 다지는데 중요한 의의가 있다고 사료된다.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1997.04a
• /
• pp.115-115
• /
• 1997

성인에 있어서 급성 후두개염의 발생빈도는 점차 증가하고 있다는 보고들이 있다. 일명 성문상부염(supraglottitis)이라고도 불린다. 이는 비단 후두개뿐만 아니라, 성문상부 구조물의 광범위한 염증을 흔히 동반하기 때문이다. 항생제의 발달로 과거와 같은 심각한 호흡곤란및 급성 상기도 증상을 일으켜, 기관지 절개술 등을 필요로 하는 경우는 많이 줄었다 하더라도 여전히 급성상기도 폐쇄를 일으킬 수 있는 응급질환 중의 하나이다. 저자들은 최근 18년동안 본교실에서 급성 후두개염으로 진단받고 치료받은 성인환자 103례중 77례를 대상으로 후향적으로 임상적 특징, 검사소견, 치료성적 등을 비교, 분석하였다. 문헌고찰과 아울러 보고하고저 한다.

• Investigative Magnetic Resonance Imaging
• /
• v.2 no.1
• /
• pp.1-13
• /
• 1998

MR 영상을 획득하기 위해서 사용하고 있는 가장 기본적인 펄스파형(pulse sequense)은 스핀반향(spin echo)과 경사자계반향(gradient echo)이며, 최근 다방면으로 응용되고 있는 고속영상기법들은 이 두가지 펄스파형을 기보능로 하고 있다. 펄스파형의 종류와 펄스파형의 변수(TR, TE TI등의 펄스 상이의 시간 간격 및 flip angle 등)에 따라서 MR영상의 특징(대조도, SNR, artifact 등)이 달라지므로 임상응용시에는 목적에 따라 적절한 펄스파혀의 선택과 함께 변수값을 결정해야 한다. 이를 위하여 펄스파형에 관한 기본적인 지식과 함게 간단한 임상응용에 관하여 기술하고자 한다.

• Proceedings of the KSLP Conference
• /
• 1998.11a
• /
• pp.189-189
• /
• 1998

점막하 구개열(submucous cleft palate)은 특징적인 임상적 해부학적 기형을 나타내는데 이분 구개수(bifid uvula), 근육의 분리(muscular diastasis), 경구개 후연의 절흔(frank notching of the posterior hard palate)등이다. 결국 이러한 기형을 교정하지 않으면 과비음과 공명장애로 인한 조음장애는 사회생활에 중요한 영향을 미치고, 사람의 인상에 나쁜 영향을 주게되어 개인의 인성 형성의 장애와 삶의 질의 저하를 초래하게 된다. (중략)

• Journal of the Korean Society of Radiology
• /
• v.83 no.5
• /
• pp.1046-1058
• /
• 2022

The hippocampus is one of the most metabolically active regions of the brain; therefore, it may be affected by various acute disorders. This study aimed to introduce and categorize various acute conditions that can involve the hippocampus and explain the findings of MRI, especially diffusion-weighted imaging (DWI). Acute hippocampal disorders are divided into six categories: infection, inflammation, metabolic, ischemic, traumatic, and miscellaneous. In this study, patients were retrospectively reviewed based on clinical findings and MRI, especially DWI. All diseases had been confirmed clinically or pathologically. Many acute hippocampal disorders overlap with the clinical manifestations. Thus, it is necessary to categorize acute hippocampal lesions and understand their specific imaging findings for differential diagnosis.

• Clinical and Experimental Pediatrics
• /
• v.50 no.9
• /
• pp.901-904
• /
• 2007

Purpose : Reversible posterior leukoencephalopathy syndrome is a complex disorder with characteristic clinical and radiologic findings that mainly involve the white/gray matter of the parieto-occipital lobes. The purpose of this study was to determine its clinical and radiological characteristics. Methods : A total of 15 pateints were involved in the study. Their medical records and radiological features of brain MRI were retrospectively reviewed and analyzed. Results : Fifteen pateints were involved. (9 males and 5 females). The patients' ages ranged from 2-20 years (mean age : 10 years). The brain MRI revealed fairly symmetric areas of increased T2 signal involving both white and gray matter of parieto-occipital regions. The condition seemed to be associated with cyclosporin A and steroid therapy or a variety of other conditions in which blood pressure rises acutely. Conclusion : Reversible posterior leukoencephalopathy syndrome is a complicated neurological condition, but a better understanding of this complex syndrome may obviate unnecessary investigations and lead to prompt and appropriate management of the associated problems.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.45 no.3
• /
• pp.386-392
• /
• 2018

Turner syndrome (TS) is a chromosomal disorder caused by monosomy of the X chromosome, with complete or partial absence of the second sex chromosome. Anomalies of root morphology have been found to occur more often in patients with TS, which make endodontic treatment challenging and requires special handling. The patients with TS may also have systematic problems such as cardiac or renal malformations, so in treating these patients it is important for clinicians not only to be aware of the characteristic intraoral findings, but also to make the patients have regular dental check-ups to prevent oral complications in advance. An 12-year-old girl who had been diagnosed with TS at the age of 10 years was referred due to discomfort in the bilateral mandibular premolar regions. Dens evaginatus and taurodontism were detected in all the mandibular premolars characteristically. The bilateral mandibular first premolars had three roots and the bilateral mandibular second premolars had periapical lesion with two roots. Due to the complexity of the root canal anatomy, root canal treatment were completed with a dental microscope to ensure adequate visualization. After 2 years of regular follow-up examinations, there were no clinical sign or symptom associated with the teeth, and no periapical lesion, was found. This case report describes the characteristic oral features and dental management of TS patients.

• Clinical and Experimental Pediatrics
• /
• v.49 no.5
• /
• pp.494-499
• /
• 2006

Purpose : Acinetobacter baumannii is increasingly recognized as an important cause of nosocomial infection, especially in neonatal intensive care units. But little is known about the clinical significance and hospital epidemiology of Acinetobacter species other than A. baumannii. The objective of this study is to describe the clinical characteristics and epidemiology of septicemia due to Acinetobacter species other than A. baumannii. Methods : We retrospectively reviewed 11 cases of blood culture proven nosocomial infection which occured in our neonatal intensive care unit from $4^{th}$ to $24^{th}$, February, 2004. To establish epidemiological analysis, we performed environmental cultures and an antibiogram was obtained from susceptability tests of isolated Acinetobacter species. Results : Clinical manifestations including fever, poor feeding, abdominal distension, diarrhea, bloody stool passage, vomiting, tachypnea and apnea were similar to other infectious diseases. Benign clinical courses were compared with poor prognose, including a high mortality rate in septicemia due to A. baumannii. The major predisposing factor among our patients was the presence of a peripheral intravascular catheter. Antibiogram was similar, but surveillance cultures of environmental specimens failed to identify the source of infection. Conclusion : Acinetobacter species other than A. baumannii were often considered relatively avirulent bacteria, but could be pathologic organisms if cultured in patients with clinical symptoms.

• Journal of the Korean Society of Radiology
• /
• v.84 no.6
• /
• pp.1257-1265
• /
• 2023

Cystic fibrosis (CF) is a fatal hereditary disorder that primarily affects Caucasians and is rare in Asian populations, including Koreans. Diagnosing CF is often challenging and delayed owing to its rarity and its overlapping features with non-CF diseases, ultimately affecting the patient prognosis. Radiologists can provide initial clues for clinically unsuspected cases and play a crucial role in establishing an early childhood diagnosis. This pictorial essay reviews the clinical and imaging features of genetically confirmed CF in Korean children and increases awareness of this rare disease, thereby facilitating early diagnosis.