echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Active Ingredient News > Antitumor Therapy > European Radiology: Seeing is not necessarily true: CT images of patients with severe emphysema may underestimate the true size of the tumor!

    European Radiology: Seeing is not necessarily true: CT images of patients with severe emphysema may underestimate the true size of the tumor!

    • Last Update: 2021-12-03
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    Since T TNM staging of lung cancer staging it is mainly determined by the size of the tumor, and therefore accurate measurement of the size of the tumor before for accurate preoperative staging is crucial in the CT image
    .


    For TNM stage, although the International Association for the Study of lung cancer (IASLC) recommended the use of CT image multiplanar reconstruction (MPR) preoperative lung were solid nodule size, but currently the best method for measuring other types of lung cancer yet Consensus


    Since T TNM staging of lung cancer staging it is mainly determined by the size of the tumor, and therefore accurate measurement of the size of the tumor before for accurate preoperative staging is crucial in the CT image


    On the other hand, emphysema is a well-known risk factor for lung cancer


    As far as we know, there is no research to investigate the influence of the presence or absence of emphysema on the measurement of tumor size on CT images


    In this study, the patients with primary lung cancer surgery in the image and pathological findings


    In emphysema, CT axial position a mean diameter significantly smaller than the average diameter of the pathology ( read reader 1/2 P = 0.


     

    FIG axial position and the measured diameter of the tumor on the image MPR CT .
    a57-year-old male of adenocarcinoma of the axial images, b is the sagittal reconstruction image .
    c75-year-old male of axial images of the squamous cell carcinoma, emphysema background, d is reconstructed sagittal image .
    Then, in the sagittal bit image maximum diameter measured again and the measured axial and sagittal images maximum large diameter as the diameter measurement MPR CT image .
    On the pathological specimen, the diameter of the tumors shown in a and b is 22 mm, and the diameter of the tumors shown in c and d is 19 mm .
     

    FIG axial position and the measured diameter of the tumor on the image MPR CT .


    a57-year-old male of adenocarcinoma of the axial images, b is the sagittal reconstruction image .
    c75-year-old male of axial images of the squamous cell carcinoma, emphysema background, d is reconstructed sagittal image .
    Then, in the sagittal bit image maximum diameter measured again and the measured axial and sagittal images maximum large diameter as the diameter measurement MPR CT image .
    On the pathological specimen, the diameter of the tumors shown in a and b is 22 mm, and the diameter of the tumors shown in c and d is 19 mm .
    FIG axial position and the measured diameter of the tumor on the image MPR CT .
    a57-year-old male of adenocarcinoma of the axial images, b is the sagittal reconstruction image .
    c75-year-old male of axial images of the squamous cell carcinoma, emphysema background, d is reconstructed sagittal image .
    Then, in the sagittal bit image maximum diameter measured again and the measured axial and sagittal images maximum large diameter as the diameter measurement MPR CT image .
    On the pathological specimen, the diameter of the tumors shown in a and b is 22 mm, and the diameter of the tumors shown in c and d is 19 mm .
     

    Compared with patients without emphysema, severe emphysema patients before surgery CT on the measured tumor size is significantly smaller, in particular a tumor larger volume in the case of particularly significant
    .


    Therefore, this study suggests that when selecting the T staging of patients with severe emphysema , the widest three-dimensional MPR should be used for measurement to reduce the generation of errors


    Compared with patients without emphysema, severe emphysema patients before surgery CT on the measured tumor size is significantly smaller, in particular a tumor larger volume in the case of particularly significant


    Original source :

    Haruto Sugawara , Hirokazu Watanabe , Akira Kunimatsu ,et al .


    Tumor size in patients with severe pulmonary emphysema might be underestimated on preoperative CT.
    DOI: 10.
    1007/s00330-021-08105-3

    Sugawara Haruto Hirokazu Watanabe Akira Kunimatsu , et Al 10.
    1007 / s00330-021-08105-3 10.
    1007 / s00330-021-08105-3 in this message
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.