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2) "#��� 1997. �7.qr�oi��$ CT.��K�h'�.�%� ���X&��Xw��57: 258�264.

3) Fine, M. J., M. A. Smith, C. A. Carson, et al. 1996.Prognosis and outcomes of patients with com-munity-acquired pneumonia. A meta-analysis.

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7) Reittner, P., S. Ward, L. Heyneman, et al. 2003.Pneumonia: High-resolution CT findings in 114patients. Eur. Radiol. 13: 515�521.

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15) '(�)� �� �� 1990. g,�K�*K���7� uv 9: 263�267.

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) 10. 23456�7�$ CT (�1£*+ ����£¤K������FG6���b��� (2¥*+ 3¦�������������� �����§>-$¨ (2¥© ª«* �¬�&!�+ ��4.5­C�® !� (2¥© V¯*+

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Page 8: CT - jscm. · PDF file0.1 mm HRCT 0.1 mm ˘ˇ ˆ ˘10)˙˝˛˚˜ 0.5!1mm 0.05!0.15 mm HRCT " ˘˙#$% ˚ &’(˘) HRCT ˘* ˇˆ ˙#

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moniae. J. Bacteriol. 116: 346�354.18) Chu, H. W., S. Jeyaseelan, J. G. Rino, et al. 2005.

TLR2 signaling is critical for Mycoplasma pneu-

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lished mouse allergic lungs contributes to de-creased mycoplasma clearance. Am. J. Respir.Crit. Care Med. 177: 720�729.

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mophila pneumonia in 38 cases. J. Comput. As-sist. Tomogr. 31: 125�131.

Understanding of Community-acquired Pneumonia

on the basis of chest computed tomography imaging

Hirotsugu Ohkubo, Yuki Togashi, Yuta Kono, Yasuhiro Setoguchi

First Department of Internal Medicine, Tokyo Medical University,6�7�1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160�0023, Japan

Computed tomographic (CT) scans are now working in many general hospitals in Japan. Most of theJapanese clinicians can use CT scans as one of the useful tool of the examination of community-acquiredpneumonia. Chest CT imaging plays an important role in the accurate interpretation of pulmonaryanatomy and pathology. Mycoplasma pneumoniae pneumonia and Chlamydophila pneumoniae pneumoniademonstrate centrilobular or acinar shadows, and thickening of bronchivascular bundles on CT imaging.Characteristic findings of Legionella pneumophila pneumonia on CT are sharply demarcated peribroncho-vascular foci of consolidation intermingled with ground glass opacity. It is possible to estimate thepathogenic bacteria, if there are characteristic features on CT imaging on the basis of clinical information.

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