Reconstruction of blood vessels from X-ray substraction projections

• Published in: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society pp. 401 - 403 vol.1
• Main Author: Kruger, R.A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1988
• Subjects: Anatomy; Biomedical imaging; Blood vessels; Cities and towns; Geometry; Image reconstruction; Radiology; Reconstruction algorithms; Tomography; X-ray imaging
• ISBN: 0780307852; 9780780307858
• DOI: 10.1109/IEMBS.1988.94578

The author shows that it is possible to apply a priori knowledge in X-ray image processing to isolate particular anatomy, provided that anatomy is characterized by a unique enough signature. In the case of 3-D vasculature, two pieces of a priori knowledge can be brought to bear. First, image subtraction can be used to discriminate between opacified vessels and nonopacified tissues. Second, vessels can be better isolated in 3-D if it is assumed that vessels are most likely surrounded by a void. In the case of focal plane digital subtraction angiography, significant improvement in image quality is achieved by using this information judiciously.< >