Hiroyuki Yoshida PhD, Presenter: Patent holder, Hologic, Inc Patent holder, MEDIAN Technologies

Janne Johannes Nappi PhD, Abstract Co-Author: Royalties, Hologic, Inc Royalties, MEDIAN Technologies

Radin Adi Nasirudin DIPLENG, Abstract Co-Author: Nothing to Disclose

Peter B. Noel PhD, Abstract Co-Author: Nothing to Disclose

Simone Mazzetti, Abstract Co-Author: Nothing to Disclose

Daniele Regge MD, Abstract Co-Author: Nothing to Disclose

Rie Tachibana, Abstract Co-Author: Nothing to Disclose

To learn about the benefits and pitfalls of virtual monochromatic spectral imaging in the interpretation of dual-energy CT colonography (CTC) examinations, in particular, ultra-low-dose CTC examinations.

1. Introduction and background: Describe the role of virtual monochromatic imaging in dual-energy CTC. 2. Principles of monochromatic CT imaging: Review the principles of how virtual monochromatic images are generated from dual-energy CTC acquisitions using image-domain or projection-domain methods. 3. Image quality improvement in virtual monochromatic images: Provide an overview of the effect of virtual monochromatic imaging on image quality, including beam-hardening artifact reduction and noise reduction, in comparison with single-energy CTC imaging. 4. Computer-assisted virtual monochromatic CTC: Describe the principles and benefits of computer-assisted CTC techniques based on virtual monochromatic imaging, in particular, virtual bowel cleansing and computer-aided detection. 5. Interpretation of virtual monochromatic CTC: Provide an overview of the CTC reading based on virtual monochromatic images. 6. Conclusions: Virtual monochromatic spectral imaging has the potential to improve image quality in low-dose CTC and to improve readers’ diagnostic performance.  

http://abstract.rsna.org/uploads/2014/14011537/14011537_1vkp.pdf

Yoshida, H, Nappi, J, Nasirudin, R, Noel, P, Mazzetti, S, Regge, D, Tachibana, R, Virtual Monochromatic CT Colonography: What Is It and How To Use It.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14011537.html