Virtual study of phase-contrast thoracic imaging

Kian Shaker; Ilian Häggmark; Sven Nyrén; Bariq Al-Amiry; Ehsan Abadi; William P. Segars; Ehsan Samei; Hans M. Hertz

doi:10.1117/12.2611695

21 March 2022 Virtual study of phase-contrast thoracic imaging

Kian Shaker, Ilian Häggmark, Sven Nyrén, Bariq Al-Amiry, Ehsan Abadi, William P. Segars, Ehsan Samei, Hans M. Hertz

Proceedings Volume PC12031, Medical Imaging 2022: Physics of Medical Imaging; PC1203102 (2022) https://doi.org/10.1117/12.2611695
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Abstract

We present the first investigation of propagation-based phase-contrast chest X-ray (CXR) imaging. Conventional and phase-contrast CXR images of virtual patients were generated by applying wave-propagation simulations to XCAT virtual chest phantoms. We then performed a reader study with clinical radiologists to investigate the potential clinical impact of phase-contrast CXR. No significant improvement in lesion (6-20 mm) detection rate was found, however, phase-contrast CXR could visualize small airways that are invisible in conventional CXR. This could have clinical significance for diagnosing diseases presenting a thickening of airway walls, such as in asthma and early-stage chronic obstructive pulmonary disease (COPD).

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Citation Download Citation

Kian Shaker, Ilian Häggmark, Sven Nyrén, Bariq Al-Amiry, Ehsan Abadi, William P. Segars, Ehsan Samei, and Hans M. Hertz "Virtual study of phase-contrast thoracic imaging", Proc. SPIE PC12031, Medical Imaging 2022: Physics of Medical Imaging, PC1203102 (21 March 2022); https://doi.org/10.1117/12.2611695

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