Three-dimensional evaluation of ductal tissue in coarctation of the aorta using X-ray phase-contrast tomography Ryuma Iwaki, MD, Hironori Matsuhisa,

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Presentation transcript:

Three-dimensional evaluation of ductal tissue in coarctation of the aorta using X-ray phase-contrast tomography Ryuma Iwaki, MD, Hironori Matsuhisa, MD, PhD, Masato Hoshino, PhD, Yoshihiro Oshima, MD, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 152, Issue 5, Pages 1454-1456 (November 2016) DOI: 10.1016/j.jtcvs.2016.05.053 Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Three-dimensional extent of ductal tissue with 3-demensional reconstruction of phase-contrast tomography images. The Journal of Thoracic and Cardiovascular Surgery 2016 152, 1454-1456DOI: (10.1016/j.jtcvs.2016.05.053) Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Identification of the ductal tissue and the aortic wall tissue by comparing X-ray phase-contrast tomographic images with images captured using Elastica van Gieson (EVG) staining. A, Longitudinal sectional images of X-ray phase-contrast tomography clearly demonstrate the ductal media and intima as low-density areas and the normal aortic media as a high-density area. The bars on the right indicate the density scale. B, Corresponding histologic sections of EVG stain (upper, ×40; lower, ×400). The media of the ductus arteriosus (DA) largely consists of smooth muscle cells, instead of circumferentially arranged layers of elastic fibers. The media of the aorta is composed of parallel elastic fibers. The intimal thickness, which can be the ductal intima (intimal cushion), extends beyond the border between the normal aorta and ductal arteriosus at the media. C, Mass density histograms from the ductal media to the descending aortic (decAo) media. The Journal of Thoracic and Cardiovascular Surgery 2016 152, 1454-1456DOI: (10.1016/j.jtcvs.2016.05.053) Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

3D extent of ductal tissue with 3D reconstruction of phase-contrast tomography images. The Journal of Thoracic and Cardiovascular Surgery 2016 152, 1454-1456DOI: (10.1016/j.jtcvs.2016.05.053) Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

Video 1 Three-dimensional reconstruction of phase-contrast tomography images. The aortic media containing elastic fibers is represented in white (high density), and media and intima of the ductal arteriosus are represented in red (low density) and blue (lowest density), respectively. Video available at: http://www.jtcvsonline.org/article/S0022-5223(16)30491-3/addons. The Journal of Thoracic and Cardiovascular Surgery 2016 152, 1454-1456DOI: (10.1016/j.jtcvs.2016.05.053) Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions