High-Quality Three-Dimensional Computed Tomography Angiography of Abdominal Viscera with Small Focal Spot, Low Tube Voltage, and Iterative Model Reconstruction Technique ()
Abstract
Purpose: To
evaluate the quality of three-dimensional (3D) CT angiography images of the
abdominal viscera with small focal spot, low tube voltage, and iterative model
reconstruction technique (IMR). Materials and Methods: Seven patients with
suspected disease of the pancreatobiliary system had undergone CT with
high-quality CTA protocol in the present study. There were 5 men and 2 women, ranging
in age from 52 to 80 years (mean: 64 years). Results: Depiction of abdominal
small artery, small portal vein was possible in all cases. In two cases that we
were able to compare, it was superior to standard CTA in small vascular
depiction in CTA made clearly in high quality protocol. Conclusions: Although
the use of small focal spot, low tube voltage, and IMR can produce
higher-quality images of abdominal vessels than standard CTA, this improvement
is not significant at elevated radiation doses.
Share and Cite:
Uchida, M. (2015) High-Quality Three-Dimensional Computed Tomography Angiography of Abdominal Viscera with Small Focal Spot, Low Tube Voltage, and Iterative Model Reconstruction Technique.
Open Journal of Radiology,
5, 8-12. doi:
10.4236/ojrad.2015.51002.
Conflicts of Interest
The authors declare no conflicts of interest.
References
|
[1]
|
Villablanca, J.P., Rodriguez, F.J., Stockman, T., et al. (2007) MDCT Angiography for Detection and Quantification of Small Intracranial Arteries: Comparison with Conventional Catheter Angiography. American Journal of Roentgenology, 188, 593-602.
http://dx.doi.org/10.2214/AJR.05.2143
|
|
[2]
|
Uchida, M. (2014) Recent Advances in 3D Computed Tomography Techniques for Simulation and Navigation in Hepatobiliary Pancreatic Surgery. Journal of Hepato-Biliary-Pancreatic Sciences, 21, 239-245.
http://dx.doi.org/10.1002/jhbp.82
|
|
[3]
|
Ichikawa, T., Motosugi, U., Morisaka, H., et al. (2012) Optimal Iodine Dose for 3-Dimensional Multidetector-Row CT Angiography of the Liver. European Journal of Radiology, 81, 2450-2455.
http://dx.doi.org/10.1016/j.ejrad.2011.06.022
|
|
[4]
|
Sprawls, P. (1992) CT Image Detail and Noise. RadioGraphics, 12, 1041-1046.
http://dx.doi.org/10.1148/radiographics.12.5.1529128
|
|
[5]
|
Seeram, E. (2009) Computed Tomography: Physical Principles, Clinical Applications, and Quality Control/Euclid Seeram, n.p.: Edinburgh: Saunders/Elsevier, c2009.
|
|
[6]
|
Marin, D., Nelson, R.C., Samei, E., et al. (2009) Hypervascular Liver Tumors: Low Tube Voltage, High Tube Current Multidetector CT during Late Hepatic Arterial Phase for Detection-Initial Clinical Experience. Radiology, 251, 771-779.
http://dx.doi.org/10.1148/radiol.2513081330
|
|
[7]
|
Utsunomiya, D., Weigold, W.G., Weissman, G., et al. (2012) Effect of Hybrid Iterative Reconstruction Technique on Quantitative and Qualitative Image Analysis at 256-Slice Prospective Gating Cardiac CT. European Radiology, 22, 1287-1294.
http://dx.doi.org/10.1007/s00330-011-2361-6
|
|
[8]
|
Pickhardt, P.J., Lubner, M.G., Kim, D.H., et al. (2012) Abdominal CT with Model-Based Iterative Reconstruction (MBIR): Initial Results of a Prospective Trial Comparing Ultralow-Dose with Standard-Dose Imaging. American Journal of Roentgenology, 199, 1-9.
http://dx.doi.org/10.2214/AJR.12.9382
|