• Advances in pediatric surgery
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• 제11권2호
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• pp.180-185
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• 2005

Superior mesenteric artery (SMA) syndrome is a rare disorder caused by extrinsic compression of the third portion of the duodenum by the SMA. The operative treatment of choice is bypassing the obstructed duodenal segment by duodenojejunostomy. We report one case of SMA syndrome treated by laparoscopic duodenojejunostomy and followed up by 3D-reconstructive CT scan. A fifteen-year-old boy with intermittent vomiting and weight loss was admitted. Ultrasonography showed narrowing of the distance between the SMA and aorta. Hypotonic duodenography showed dilatation of duodenal third portion and barium stasis. On 3Dreconstructive CT scan, the angle between SMA and aorta was $37^{\circ}$. The postoperative course was uneventful. Three months later, he had gained 3 kg of weight and the angle between SMA and aorta increased to $38-39^{\circ}$ on 3D reconstructive CT scan. Laparoscopic duodenojejunostomy for bypassing the obstructive duodenum in SMA syndrome is a feasible and safe method.

• 식품보건융합연구
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• 제4권1호
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• pp.23-31
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• 2018

The main issue of CT is radiation dose reduction to patient. The purpose of this study was to estimate the image quality and dose by iterative reconstruction (IR) for adults and pediatrics. Adult and pediatric images of phantom were obtained with 120 and 140 kV, respectively, in accordance with radiation dose in terms of volume CT dose index ($CTDI_{vol}$): 10, 15, 20, 25, 30, 35 mGy. Then, the adult and the pediatric images are reconstructed by filtered-backprojection (FBP) and iterative reconstruction (IR). The images were analyzed by signal-to-noise ratio (SNR). SNR is improved when IR and 140 kV are applied to acquire adult and pediatric images. In the adult abdomen, according to diagnostic reference level, the SNR values of bone were increased about 27.84 % and 27.77 % at 120 kV and 140 kV, and the tissue's SNR values of the IR were increased about 29.84 % and 33.46 % 120 and 140 kV, respectively. Dose is reduced to 40% in adults abdomen images when using IR reconstruction. In pediatric images, the bone's SNR were also increased about 17.70% and 18.17 % at 120 kV and 140 kV. The tissue's SNR were increased about 26.73 % and 26.15 % at 120 kV and 140 kV. Radiation dose is reduced from 30% to 50% for bone and tissue images. In the case of examinations for adult and pediatric CT, IR technique reduces radiation dose to patient, and it could be applied to adult and pediatric imaging.

• Journal of Trauma and Injury
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• 제27권3호
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• pp.63-70
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• 2014

Purpose: In children, mild traumatic brain injuries (TBI) account for 70~90% of head injuries. Without guidelines, many of these children may be exposed to excess radiation due to unnecessary imaging. The purpose of this study was to evaluate the impact of a mild TBI guideline in imaging of pediatric patients. Methods: The medical records of all children who had head computed tomography and were admitted to our hospital with a TBI with Pediatric Glasgow Coma Scale and Glasgow Coma Scale of 14 to 15 were retrospectively reviewed and compared with PECARN Rule. Results: A total of 1260 children were included and all children checked with head computed tomography. 61 pediatrics had CT positive and presented skull fracture 40, hemorrhage 8, hemorrhagic contusion 7, and diffuse axonal injury 1. Also, 4 patients diagnosed both skull fracture and brain haemorrhage and 1 patient diagnosed both haemorrhage and haemorrhagic contusion. Conclusion: There are many pediatric traumatic patients who exposed to radiation due to CT. But, the most of results were negative. So, consider to follow the CT guideline for children and many do not require brain CT.

• Clinical and Experimental Pediatrics
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• 제52권6호
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• pp.661-666
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• 2009

목 적 : 최근 호흡기 감염의 원인에 대한 검사 방법의 발달로 중복검출에 대한 높은 비율이 보고되고 있다. 이에 소아에서의 급성 호흡기 감염의 원인으로 중복검출에 대한 임상 양상과 그 특징에 대해 알아보고자 하였다. 방 법 : 2003년 9월부터 2005년 6월까지 단국대학교병원 소아과에 급성 호흡기 증상으로 입원한 환아들을 대상으로 의무기록지를 후향적으로 조사하였다. 비인두 흡인물의 호흡기 바이러스(AdV, RSV, PIV 1, 2, 3, IFA, IFB)의 항원과 배양 검사, 혈청의 MP 항체 측정(1:640 이상 혹은 4배 이상의 항체 상승시 양성으로 함), 비인두 흡인물의 MP PCR, CT 항원의 PCR 검사, enterovirus PCR 및 배양검사, 객담의 항산균 도말 염색 및 배양 검사를 받은 환아들 중 2가지 이상에서 양성으로 나온 환아들의 임상 양상에 대해서 조사하였다. 결 과 : 1) 호흡기 감염의 원인에 대한 검사에서 2가지 이상의 양성을 보인 환아는 총 28명이었으며 남아가 17명이었고, 평균 나이는 2년 3개월(19일-13세), 6개월 미만이 11명이었다. 2) 중복검출의 원인 중 RSV가 14례, PIV 3 10례, AdV 10례, MP 8례, PIV 2가 7례, CT, PIV 3가 각각 3례였다. 중복검출되는 원인으로 RSV＋PIV 2 6례, AdV＋MP 4례, AdV＋PIV 3, RSV＋MP, PIV 1＋PIV 3가 각각 3례였다. 3) 임상 진단으로 폐렴 19례, 세기관지염 16례, 후두염이 3례였으며, 4) MP, 호흡기 바이러스의 각각의 유행 시기에 이들에 의한 중복검출이 있었다. 결 론 : 소아의 급성 호흡기 감염의 원인에 대한 중복검출은 영아에서 흔하며, 원인으로 RSV, PIV, AdV, MP가 많았다. MP, 호흡기 바이러스의 각각의 유행 시기에 이들에 의한 중복 검출률의 빈도가 증가함을 볼 수 있었다. 호흡기 감염의 원인에 대한 검사 방법의 발달로 중복 검출률이 높아지고 있어 이의 임상적 의미에 대한 연구가 더 필요하다고 사료된다.

• Advances in pediatric surgery
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• 제5권2호
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• pp.152-158
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• 1999

Adrenal cortical tumors are rare in adults and children. Most are malignant and functional. The principal clinical features are virilization, Cushing's syndrome, hyperaldosteronism and feminization. Recently, we treated a case of virilizing adrenal cortical tumor in a 26 month-old boy. The diagnosis was made by hormone assay, abdominal CT and tissue pathology. Right adrenalectomy was successful performed. Pathologic examination revealed an adrenal cortical adenoma with vascular invasion.

• Clinical and Experimental Pediatrics
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• 제51권8호
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• pp.787-791
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• 2008

Enlargement of organs or other solid tissues usually presents as an abdominal mass. Often, abdominal masses in children are found by an unsuspected parent or by a physician during a routine examination. Most masses have no specific signs or symptoms. Abdominal masses in children require immediate attention. History and physical examination may provide clues to the diagnosis. Ultrasound examination is the most useful screening test in most cases and may identify the organ involved and clarify whether the mass is solid or cystic. CT may be necessary to make a more precise diagnosis, especially solid masses. MRI is occasionally is helpful for specific abnormalities.

• 대한두경부종양학회지
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• 제24권2호
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• pp.207-210
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• 2008

The purpose of this paper is to review our experience with mucoepidermoid carcinoma(MEC), a rare tumour in minor salivary glands, in a paediatric patients. 15-year-old boy was noted to have a irregular round mass appearing atthe soft palate just to the right of the mid-line. A computed tomographic(CT) scan showed a palatal mass limited to soft palate with no bony erosion. The lesion was curetted and debulked. Pathology was reported as an intermediate-grade mucoepidermoid carcinoma, and the patient was considered to radiation therapy institution for further treatment. To date, patients remain free of disease. Wide local excision is the treatment of choice for low to intermediate grade MEC of the minor salivary glands in paediatric patients.

• Advances in pediatric surgery
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• 제6권2호
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• pp.134-138
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• 2000

Solid and papillary cystic neoplasm of pancreas is an uncommon low grade malignant tumor. It is predominant in young female between the second and third decades of life, and amenable to cure by surgical treatment. The authors report two cases of solid and papillary neoplasm of pancreas pathologically verified at Kyung Hee University Hospital. The first case was an 11-years old female patient and the other case was a 12-years old male. Symptoms were abdominal discomfort, nausea and vomiting in both cases and abdominal pain in the female patient. CT finding included a solid and papillary neoplasm of pancreas. The mass was well-demarcated with solid and cystic necrosis components. In the female patient, a large hematoma was found. Gross findings revealed apparent encapsulation, cystic degeneration and hemorrhagic necrosis. Microscopically the tumors were characterized by distinctive solid and papillary patterns of cellular arrangement without local invasion. Both patients were discharged after surgery and followed up without any problem.

• 수면정신생리
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• 제2권2호
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• pp.115-128
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• 1995

Present study reviewed various standardized neuropsychological assessment methods for children that are widely used in Korean child-psychiatric clinic settings to evaluate neurological problems, especially soft neurological signs that could not be identified by neurological techniques like CT, MRI. The characteristics of those neuropsychological test responses in children with psychiatric disorders that neurological factors are thought to play more important role than psychological factors in their etiology were examined. It is more important and required to establish the developmental norms for interpreting the results of neuropsychological tests and for identifying the signs of brain damage in case of children than adults. There are many difficulties in diagnosing brain dysfunction and conducting research for neurological problems in psychiatric disordered children due to lack of the standardized Korean version of neuropsyhological test for children, Therefore, several issues on developing the Korean version of neuropsyhological tests for children were discussed.

• Advances in pediatric surgery
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• 제6권1호
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• pp.64-67
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• 2000

Although intraperitoneal teratomas are rare, teratomas of the greater omentuma are seldom reported. A single case of omental teratoma with torsion in a 26-month-old girl is reported. The patient presented with abdominal pain and a palpable mass. Ultrasonography and CT of the abdomen showed a large cystic mass with a non homgenious solid component composed of fat and calcification. The lesion was surgically excised. Pathology revealed a mature omental teratoma. The hospital course was uneventful.