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Wei Tang

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    Lunch & Poster Display session (ID 58)

    • Event: ELCC 2019
    • Type: Poster Display session
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 4/11/2019, 12:30 - 13:00, Hall 1
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      50P - Reduced-, and no-dose thin-section radiologic examinations: Comparison of capability for nodule detection in patients having pulmonary nodules (ID 247)

      12:30 - 13:00  |  Presenting Author(s): Wei Tang

      • Abstract


      To evaluate the capability of pulmonary MR imaging with zero echo time (ZTE) in pulmonary nodules assessments, using low-dose computed tomography (LDCT) as the reference standard.

      a9ded1e5ce5d75814730bb4caaf49419 Methods

      Institutional review board approval and informed consent were obtained. Eight-nine consecutive patients (51 males: mean age, 69 years and 38 females: mean age, 71 years) with various pulmonary nodules were examined with chest LDCT and pulmonary MR imaging with ZTE. The interval between two examinations was within two weeks for each patient. Lung images were visually scored by two experienced radiologists who assessed the probability of nodule presence in comparison with LDCT. To compare nodule detection capability of the two methods, consensus for performances was evaluated by means of kappa statistics and χ2 test, and receiver operating characteristic analyses were used to compare diagnostic performance of both methods.

      20c51b5f4e9aeb5334c90ff072e6f928 Results

      There was no significant difference (F = 0.75, P = 0.56) in figure of merit between methods (LDCT, 0.84 Vs. MR imaging with ZTE, 0.86). Intermethod agreements between ZTE MR imaging and LDCT were significant (0.70 ≤ κ ≤ 0.98; P < 0.001). Areas under the curve for pulmonary nodules on LDCT were significantly larger than those on MR imaging with ZTE (P = 0.02).

      fd69c5cf902969e6fb71d043085ddee6 Conclusions

      Pulmonary thin-section MR imaging with ZTE was useful in nodule detection, and it is considered at least as effective as low-dose thin-section CT.

      b651e8a99c4375feb982b7c2cad376e9 Legal entity responsible for the study

      The authors.

      213f68309caaa4ccc14d5f99789640ad Funding

      Has not received any funding.

      682889d0a1d3b50267a69346a750433d Disclosure

      All authors have declared no conflicts of interest.