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Area — a consistent method to evaluate pulmonary tumor size on multidetector CT imaging: an intraobserver and interobserver agreement study

  • Lu Huang
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Liang Wang
    Correspondence
    Corresponding authors. L. Wang is to be contacted at: Department of Radiology Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, Hubei, PR China. L. Xia, Department of Radiology Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Wenzhen Zhu
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Rui Han
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Hao Tang
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Zhongqiang Cao
    Affiliations
    Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, 13# Hankong Road, Wuhan, Hubei, 430030, PR China
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  • Jianfeng Zhou
    Affiliations
    Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Daoyu Hu
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Chengyuan Wang
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
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  • Liming Xia
    Correspondence
    Corresponding authors. L. Wang is to be contacted at: Department of Radiology Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, Hubei, PR China. L. Xia, Department of Radiology Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, Hubei, 430030,PR China
    Search for articles by this author
Published:September 03, 2013DOI:https://doi.org/10.1016/j.clinimag.2013.06.011

      Abstract

      Objectives

      To evaluate the agreements of unidimensional, bidimensional, area and volume measurements of pulmonary tumors on multidetector computed tomography (MDCT), and to determine which method is the most reliable one.

      Materials and methods

      Thirty patients with pulmonary tumors were enrolled in this study, which referred to undergo thoracic MDCT in our hospital. Four radiologists evaluated dimensions of pulmonary tumor independently, including length, width, height, area and volume. The intraclass correlation coefficient (ICC) and concordance correlation coefficient (CCC) were both used to evaluate the variability between the repeat readings of the same scan.

      Results

      The ICCs and CCCs of the intraobserver were both higher than interobserver's (ICC intra vs. inter: 0.984 vs. 0.947 and CCC intra vs. inter: 0.993 vs. 0.943). Area of intraobserver ICC (ICC=0.992, P<.001) and CCC (CCC=0.997, P<.001) both had the best agreements of the six methods. Among the interobserver ICCs and CCCs, area (ICC=0.981, P<.001 and CCC=0.982, P<.001) was also the best of the six methods.

      Conclusions

      Area measurement on MDCT is the most reproducible method that measures tumor dimension accurately.

      Keywords

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