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Sliding thin slab, minimum intensity projection imaging for objective analysis of emphysema

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Abstract

Purpose

The aim of this study was to determine whether sliding thin slab, minimum intensity projection (STS-MinIP) imaging is more advantageous than thin-section computed tomography (CT) for detecting and assessing emphysema.

Materials and methods

Objective quantification of emphysema by STS-MinIP and thin-section CT was defined as the percentage of area lower than the threshold in the lung section at the level of the aortic arch, tracheal carina, and 5 cm below the carina. Quantitative analysis in 100 subjects was performed and compared with pulmonary function test results.

Results

The ratio of the low attenuation area in the lung measured by STS-MinIP was significantly higher than that found by thin-section CT (P < 0.01). The difference between STS-MinIP and thin-section CT was statistically evident even for mild emphysema and increased depending on whether the low attenuation in the lung increased. Moreover, STS-MinIP showed a stronger regression relation with pulmonary function results than did thin-section CT (P < 0.01).

Conclusion

STS-MinIP can be recommended as a new morphometric method for detecting and assessing the severity of emphysema.

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Authors and Affiliations

  1. Department of Radiology, Ohme Municipal General Hospital, 4-16-5 Higashi-ohme, Ohme, Tokyo, 198-0042, Japan

    Shiro Satoh

  2. Pulmonary Medicine, Ohme Municipal General Hospital, Ohme, Tokyo, Japan

    Shinichi Ohdama

  3. Department of Radiology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan

    Hitoshi Shibuya

Authors
  1. Shiro Satoh
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  2. Shinichi Ohdama
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  3. Hitoshi Shibuya
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Corresponding author

Correspondence to Shiro Satoh.

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Satoh, S., Ohdama, S. & Shibuya, H. Sliding thin slab, minimum intensity projection imaging for objective analysis of emphysema. Radiat Med 24, 415–421 (2006). https://doi.org/10.1007/s11604-006-0045-y

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  • DOI: https://doi.org/10.1007/s11604-006-0045-y

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