• 치과방사선
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• 제27권2호
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• pp.27-47
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• 1997

The purpose of this study was to evaluate the accuracy and usefulness of spiral tomography through the comparison and analysis of SCANORA cross-sectional tomographs and DentaScan computed tomographic images of dry mandibles taken by a SCANORA spiral tomographic machine and a computed tomographic machine. Thirty-one dry mandibles with full or partial edentulous areas were used. To evaluate the possible effect of location in the edentulous area, it was divided into 4 regions of Me (region of mental foramen), MI (the midportion between Me and M2), M2 (the midportion between mental foramen and mandibular foramen) and S (the midportion of the mandibular symphysis). A ZPC column (sized 4 mm x 5 mm) was seated on the edentulous regions of Me, MI, M2 and S using the acrylic stent. Then SCANORA spiral tomography and computed tomography were taken on the edentulous regions which contained the ZPC column. The ZPC columns and cross-sectional images of the mandible were measured in the radiographs by three observers and the differences between the two imaging modalities were analysed. The results were as follows: 1. In comparing the actual measurements of the ZPC column and measurements in the radiographs, the mean error of the DentaScan computed tomography was 0.07 mm in vertical direction and -0.06 mm in horiwntal direction, while the mean error of the SCANORA spiral tomography was 0.06 mm in vertical direction and -0.12 mm in horizontal direction. There was a significant difference between the two radiographic techniques in the horizontal measurement of the ZPC column of the symphysis region (p<0.05). But there was no significant difference in the measurements of other regions (p>0.05). 2. In measurements of the distance from the alveolar crest to the inferior border of the mandible (H), and of the distance from the alveolar crest to the superior border of the mandibular canal (Y), there was no significant difference between the two radiographic techniques (p>0.05). 3. In measurements of the distance from the lingual border of the mandible to the buccal border of the mandible (W), and of the distance from the lingual border of the mandible to the lingual border of the mandibular canal (X), there was a significant difference between the two radiographic techniques in measurements of the midportion between the mental foramen and the mandibular foramen (M2) (p<0.05). But there were no significant differences in measurements of the other regions of symphysis (S), mental foramen (Me), the first one-fourth portion between the mental foramen and the mandibular foramen (M1) (p>0.05). 4. Considering the mean range of measurements between observers, the measurements of SCANORA spiral tomography showed higher value than those of DentaScan computed tomography, except in measurements of symphysis (S). 5. On the detectability of the mandibular canal, there was no significant difference between the two radiographic techniques (p>0.05). In conclusion, SCANORA spiral tomography demonstrated a higher interobserver variance than that of DentaScan computed tomography for implant site measurements in the posterior edentulous area of the mandible. These differences were mainly the result of difficulty in the detection of the border of the mandible in SCANORA spiral tomography. But considering the cost and the radiation exposure, SCANORA spiral tomography can be said to be a relatively good radiographic technique for implant site measurement.

• Journal of Korean Neurosurgical Society
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• 제51권2호
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• pp.102-104
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• 2012

Although decompressive craniectomy is an effective treatment for various situations of increased intracranial pressure, it may be accompanied by several complications. Paradoxical herniation is known as a rare complication of lumbar puncture in patients with decompressive craniectomy. A 38-year-old man underwent decompressive craniectomy for severe brain swelling. He remained neurologically stable for five weeks, but then showed mental deterioration right after a lumbar puncture which was performed to rule out meningitis. A brain computed tomographic scan revealed a marked midline shift. The patient responded to the Trendelenburg position and intravenous fluids, and he achieved full neurologic recovery after successive cranioplasty. The authors discuss the possible mechanism of this rare case with a review of the literature.

• Journal of Korean Neurosurgical Society
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• 제49권2호
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• pp.131-133
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• 2011

We performed a percutaneous vertebroplasty at the compressed L2 vertebral body of a 73-year-old female using a left-sided unilateral extrapedicular approach. She complained severe radiating pain and a tingling sensation in her left leg two hours after the vertebroplasty. Spinal computed tomographic scan showed a large retroperitoneal hematoma, and a subsequent spinal angiography revealed a left L2 segmental artery injury. Bleeding was successfully controlled by endovascular embolization. Recently, extrapedicular approaches have been attempted, allowing for the avoidance of facet and pedicle injury with only a unilateral approach. With this approach, however, the needle punctures the vertebral body directly. Therefore, this procedure carries the potential risk of a spinal segmental artery.

• Journal of Gastric Cancer
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• 제11권2호
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• pp.126-130
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• 2011

A composite glandular/exocrine-endocrine carcinoma of the gastrointestinal tract is characterized by the co-existence of two adjacent, but histologically-distinct tumors in an organ. Composite glandular/exocrine-endocrine carcinomas are a special type of tumor comprised of common adenocarcinomas and neuroendocrine components that account for at least one-third of the entire tumor area. Composite tumors have been reported in a range of organs, but are relatively rare in the stomach. We report a case of a composite neuroendocrine carcinoma with an adenocarcinoma of the stomach (mixed exocrine-endocrine carcinoma), which was misdiagnosed as a giant submucosal tumor preoperatively based on esophagogastroduodenoscopy and a contrast-enhanced axial computed tomographic scan.

• Journal of Chest Surgery
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• 제38권5호
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• pp.400-402
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• 2005

외상으로 인한 횡격막 파열과 그로 인한 신장 이탈은 드문 현상이며, 더욱이 신장 이탈시 신장 다리(renal pedicle)가 완전히 찢어지는 현상은 매우 드물게 발생하며 응급 수술을 시행하지 않으면 생명이 위험할 수 있다. 이에 저자들은 외상성 횡격막 파열과 함께 흉강 내 혈관과 요관이 완전히 찢어진 상태로 신장이 탈출한 1예를 경험하였기에 간단한 문헌 고찰과 증례를 보고하는 바이다.

• Journal of Chest Surgery
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• 제51권3호
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• pp.202-204
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• 2018

We report a case of high-output chylothorax associated with thrombo-occlusion of the superior vena cava (SVC) and left innominate vein (LIV) following an arterial switch operation in a neonate. The chylothorax was resolved by 3 weeks after surgical reconstruction of the SVC and LIV using fresh autologous pericardium. We confirmed the patency of the SVC and LIV with a 1-year follow-up computed tomographic scan at our outpatient clinic.

• 대한한의학회지
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• 제18권2호
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• pp.73-81
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• 1997

We have done factor analysis to study the effects of clinical knowledge on the diagnosis process. Clinical datas were made on 94 patients with cerebrovascular accident diagnosed by computed tomographic scan and who did not over 20 days after stroke. After analysis, totally 11 factors has been found. Among these factors, we interpreted significant 5 factors as oriental-medical meaning, Factor 1 meant Han-youl(寒熱) and factor 2 meant Huh-Shil(虛實). These were exactly corresponded with clinical experience.

• Journal of Chest Surgery
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• 제32권10호
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• pp.954-957
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• 1999

Primary malignant lymphomas of the lung are rare neoplasms representing 3.6% of all extranodal lymphomas and less than 1% of pulmonary malignancies, with its distinct clinicopathological features. A 60-year-old symptomatic man, who was a former non-smoker, had a cough and sputum. Chest roentgenogram and computed tomographic scan showed the presence of a posterior mass in the basal segment of the right lung. Transthoracic needle aspiration cytology was inadequate for the diagnosis of cancer. A subsequent right thoracotomy was carried out, which showed a primary pulmonary lymphoma of the bronchus-associated lymphoid tissue.

• Journal of Chest Surgery
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• 제36권5호
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• pp.375-377
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• 2003

Hamman 증후군으로 불리기도 하는 종격동기흉은 종격동의 근막내부에 공기가 존재하는 질환이다. 드물지 않게 종격동과 경부 근막 사이의 교통공간을 통해 공기의 확산이 발생할 수 있다. 이런 종격 동기홍의 원인은 기도-기관지 질환 및 식도손상이지만 대부분의 경우에 명확하지가 않다. 몇몇의 증례에서 Macklin효과가 원인으로 알려져 있다. 저자들은 흉부 외상 후 발생한 종격동기흉의 원인으로 전산화단층촬영에서 확인된 Macklin효과의 증례가 있어 이를 보고하고자 한다.

• 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.