Minori Hoshika, Presenter: Nothing to Disclose

Norimi Nishiyama, Abstract Co-Author: Nothing to Disclose

Yuki Kobayashi, Abstract Co-Author: Nothing to Disclose

Yoshihiro Takeda MD, Abstract Co-Author: Nothing to Disclose

To review the advantages and limitations of CT-Angiography(CTA). To provide an explanation of the new examination method and conventional examination methods. Review the usefulness of abdominal CTA with vasodilator (nitroglycerin).        

・ Method and characteristic of vascular visualization in CTA. ・ Description of the high resolution in CTA method: Comparison of GroupA (with nitroglycerin/n=23) and GroupB (without nitroglycerin/n=26) during abdominal CTA. The usefulness of CTA as an operation tool is reported. There is a limitation to the spatial resolution in comparison with Angiography, as rendering the peripheral blood vessels is difficult. In CTA with  vasodilator as an operation tool, made available in nearly all cases in Group A, visualization of the pancreaticoduodenal artery and inferior pancreatic artery. Visualization in Group B (without nitroglycerin group) was only about 30% capability. We had same result in case we describe the inferior pancreatic artery. We conclude it is useful to use nitroglycerin for better describing image. Vascular depiction performance is enhanced by the use of the vasodilator. In this new method, without iodine content, flow rate was also increased, and blood vessel depiction performance is possible.  

http://abstract.rsna.org/uploads/2014/14004363/14004363_o6y6.pdf

Hoshika, M, Nishiyama, N, Kobayashi, Y, Takeda, Y, Novel Contrast-Injection Protocol for High Resolution Abdominal CT-Angiography: Vascular Visualization Improvement with Vasodilator.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004363.html