Abstract
Purpose
To determine the utility of dual-energy perfusion CT (DEpCT) of non-diseased lung segments, using dual-source CT, in comparison with perfusion single-photon emission computed tomography (SPECT).
Materials and methods
28 patients (18 male and 10 female; mean age 63 years; age range 18–86 years) underwent DEpCT and SPECT within a 3-day interval. The presence and location of perfusion defects in each segment of the lungs were evaluated.
Results
Perfusion defects were noted in 7 of 361 segments (1.9 %) by DEpCT and in 19 of 361 segments (5.3 %) by perfusion SPECT. DEpCT was in good agreement with perfusion SPECT for 338 of 361 segments (93.6 %). Intraobserver agreement was also good, ranging from 93.4 to 93.6 % (κ = 0.64–0.75, p < 0.01).
Conclusion
For non-diseased lung segments, DEpCT correlated well with SPECT.
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Kunihiro, Y., Okada, M., Matsunaga, N. et al. Dual-energy perfusion CT of non-diseased lung segments using dual-source CT: correlation with perfusion SPECT. Jpn J Radiol 31, 99–104 (2013). https://doi.org/10.1007/s11604-012-0153-9
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DOI: https://doi.org/10.1007/s11604-012-0153-9