• 제목/요약/키워드: computed tomographic

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Segmental Artery Injury Following Percutaneous Vertebroplasty Using Extrapedicular Approach

  • Heo, Dong-Hwa;Cho, Yong-Jun
    • Journal of Korean Neurosurgical Society
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    • v.49 no.2
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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.

The International Association for the Study of Lung Cancer Lymph Node Map: A Radiologic Atlas and Review

  • Kim, Jin Hwan;van Beek JR, Edwin;Murchison, John T;Marin, Aleksander;Mirsadraee, Saeed
    • Tuberculosis and Respiratory Diseases
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    • v.78 no.3
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    • pp.180-189
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    • 2015
  • Accurate lymph node staging of lung cancer is crucial in determining optimal treatment plans and predicting patient outcome. Currently used lymph node maps have been reconciled to the internationally accepted International Association for the Study of Lung Cancer (IASLC) map published in the seventh edition of TNM classification system of malignant tumours. This article provides computed tomographic illustrations of the IASLC nodal map, to facilitate its application in day-to-day clinical practice in order to increase the appropriate classification in lung cancer staging.

Composite Neuroendocrine Carcinoma with Adenocarcinoma of the Stomach Misdiagnosed as a Giant Submucosal Tumor

  • Kim, Tae-Yoon;Chae, Hyun-Dong
    • Journal of Gastric Cancer
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    • v.11 no.2
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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.

Surgical Reconstruction for High-Output Chylothorax Associated with Thrombo-Occlusion of Superior Vena Cava and Left Innominate vein in a Neonate

  • Ok, You Jung;Kim, Young-Hwue;Park, Chun Soo
    • Journal of Chest Surgery
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    • v.51 no.3
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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.

Numerical and experimental flow visualization on nasal air flow (비강 내 공기유동에 대한 실험 및 전산유동가시화)

  • Kim, Sung-Kyun;Park, Jun-Hyeong;Huynh, Gwang-Rim
    • 한국전산유체공학회:학술대회논문집
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    • 2008.03b
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    • pp.498-501
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    • 2008
  • Knowledge of airflow characteristics in nasal cavities is essential to understand the physiological and pathological aspects of nasal breathing. Several studies have utilized physical models of the healthy nasal cavity to investigate the relationship between nasal anatomy and airflow. In our laboratory, there have been a series of experimental investigations on the nasal airflow in normal, abnormal, and deformed nasal cavity models cavity models by PIV under both constant and periodic flow conditions. In this time normal and several deformed nasal cavity models, which simulate surgical operation, Turbinectomy, are investigated numerically by the FVM general purpose code and PIV analysis. The comparisons of these results are appreciated. Dense CT data and careful treatment of model surface under the ENT doctor's advice provide more sophisticated cavity models. The Davis (LaVision Co.) code is used for PIV flow analysis. Average and RMS distributions have been obtained for inspirational and expirational nasal airflows in the normal and deformed nasal cavities.

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A study of factor analysis for clinical knowledge about cerebrovascular diseases (중풍변증에 관련된 임상지식에 대한 요인분석)

  • Kwon, Young-Kyu;Park, Chang-Gook;Kang, Hyo-Shin
    • The Journal of Korean Medicine
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    • v.18 no.2
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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.

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Intracranial Calcification Caused by a Brain Abscess : A Rare Cause of Intracranial Calcification

  • Kim, Hyeun Sook;Kim, Dong Min;Ju, Chang Il;Kim, Seok Won
    • Journal of Korean Neurosurgical Society
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    • v.54 no.2
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    • pp.148-150
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    • 2013
  • Intracranial calcifications are relatively common computed tomographic findings in the field of neurosurgery, and cysticercosis, tuberculosis, HIV, and cryptococcus are acquired intracranial infections typically associated with calcifications. However, intracranial calcification caused by a bacterial brain abscess is rare. Here, we present a rare case of intracranial calcification caused by a bacterial brain abscess, from which staphylococcus hominis was isolated. To the best of our knowledge, no previous report has been published on intracranial calcification caused by bacterial brain abscess after decompressive craniectomy for traumatic brain injury. In this article, the pathophysiological mechanism of this uncommon entity is discussed and relevant literature reviewed.