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2004 Fiscal Year Final Research Report Summary

Smoking and pulmonary emphysema in chest CT and analysis of its progression

Research Project

Project/Area Number 14570863
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionKagawa University

Principal Investigator

SATOH Katashi  Kagawa University, Faculty of Medicine, Associate professor, 医学部, 助教授 (30154040)

Co-Investigator(Kenkyū-buntansha) OHKAWA Motoomi  Kagawa University, Faculty of Medicine, Professor, 医学部, 教授 (70028629)
Project Period (FY) 2002 – 2004
Keywordspulmonary emphysema / smoking / CT / inflated-fixed lung / teleradiology
Research Abstract

To determine the incidence of pulmonary emphysema (PE) and its severity identified by computed tomography (CT) screening for lung cancer.
We reviewed 2,731 cases (1,890 men and 841 women, ranging in age from 21-91 years) who underwent CT scanning. CT findings were judged abnormal if there were areas of low attenuation. Among the men, there were 1592 smokers including ex-smokers and 298 non-smokers. On the other hand, there were 114 female smokers including ex-smokers, and 727 non-smokers. CT findings were classified into normal and four grades (1-4) ; grade 1, mild, to grade 4, severe. In all cases, contiguous 1-cm sections encompassed the entire thorax without using high-resolution reconstruction.
PE was found in 827 of 1.592 (51.9%) male smokers and in 6 of 298 (2.0%) non-smokers. Among women, PE was found in 27 of 114 (23.7%) smokers and in 10 of 727 (1.4%) non-smokers. Among male smokers, the prevalence of PE by grade was : grade 1, n=383 ; grade 2, n=206 ; grade 3, n=154 and grade 4, n=84. Among female smokers, the prevalence of PE by grade was : grade 1, n=17 ; grade 2, n=6 ; grade 3, n=4 and grade 4, n=0. The incidence of PE in men in each age group : less than 30 years, n=8 (of 27, 29.6%) ; 30's, n=33 (of 90, 36.7%), 40's, n=138 (of 294, 46.9%) ; 50's, n=241 (of 507, 47.6%) ; 60's, 231 (of 406, 56.9%) ; and 70's, n=176 (of 268, 65.7%).
PE can be found in young subjects even in those under age 30 years. Although PE can occur in nonsmokers, PE is strongly related to smoking and progresses with age and cumulative cigarette smoking dose. PE was found in more than half of male smokers on average.

  • Research Products

    (14 results)

All 2005 2004 2003 2002

All Journal Article (13 results) Book (1 results)

  • [Journal Article] 胸部単純X線写真の読影-葉間線を中心として2005

    • Author(s)
      佐藤 功
    • Journal Title

      日本医学放射線学会雑誌 65

      Pages: 10-15

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Chest radiography based on the interlobar fissures2005

    • Author(s)
      Katashi Satoh
    • Journal Title

      Nipp ACTA Radiol 65

      Pages: 10-15

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] CT assessment of pulmonary emphysema using teleradiology2004

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Radiation Medicine 22

      Pages: 126-130

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] CT assessment of pulmonary emphysema using teleradiology2004

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Rad Med 22

      Pages: 126-130

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation of inflated-fixed lung2004

    • Author(s)
      Katashi Satoh
    • Journal Title

      Chest CT (Kiyoshi Murata, et al.)

      Pages: 622

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 喫煙とびまん性肺疾患 (1)肺気腫2003

    • Author(s)
      佐藤 功, 他
    • Journal Title

      画像診断 23

      Pages: 46-54

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 肺気腫患者におけるテクネガスSPECTの平均値を用いた定量化-気腫の分布の違いと呼吸機能との関連について2003

    • Author(s)
      佐藤 功, 他
    • Journal Title

      核医学 41

      Pages: 147-153

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Pulmonary emphysema : inflated-fixed lung specimen, teleradiolgy, and ventilation scintigraphy2003

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Jpn J Diag Imag 23

      Pages: 46-54

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Quantitative study of ^<99m>Tc-Technegas SPECT for ventilation impairment in pulmonary emphysema - regional distribution : correlation of SPECT with pulmonary function test -2003

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Kakuigaku 40

      Pages: 147-153

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] びまん性肺疾患 b.肺気腫2002

    • Author(s)
      佐藤 功, 他
    • Journal Title

      日本胸部臨床 61

      Pages: S123-S142

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] CTによる喫煙者における肺気腫の検討2002

    • Author(s)
      佐藤 功, 他
    • Journal Title

      臨床放射線 47

      Pages: 166-171

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 2. Diffuse pulmonary disease, Pulmonary emphysema2002

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Jpn Thorac Dis 61

      Pages: S133-S142

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] CT assessment of progression in pulmonary emphysema2002

    • Author(s)
      Katashi Satoh, et al.
    • Journal Title

      Clin Radiology 47

      Pages: 166-171

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 胸部のCT2004

    • Author(s)
      佐藤 功
    • Total Pages
      19-34
    • Publisher
      村田喜代史、他
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2006-07-11  

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