Keywords:
Interventional vascular, Vascular, Percutaneous
Authors:
E. Katsuda, A. Kitagawa, Y. Izumi, M. Hagihara, Y. Oshima, J. Matsuda, J. Kimura, S. Kamei, T. Ishiguchi; Nagakute/JP
DOI:
10.1594/ecr2010/C-2062
Methods and Materials
An imaginary aortic wall was created from the CT images of the aorta, and a hollow replica was produced from silicone resin by laser stereolithography(fig.1,fig.2).
1.The accuracy of the model was evaluated in four cases of thoracic aortic aneurysm by CT scanning and measurement software on a workstation(fig.3). The results of measurement for diameter and length on various portions (sixteen measurements per case,fig.4) were compared with those of the original clinical CT data.
2.For the simulation of treatment, different types of stent-graft were inserted and deployed in the aneurysm models over guidewires with different stiffness and variable pre-shaping(fig.5,fig.6).
CT scan protcol
CT:Light Speed VCT (GE)
Tube voltage:120kVp
Tube current:Automatic exposure control
Beam Pitch:1
Rotation time:0.5sec
FOV:320 mm
Collimation:1-2 mm
Algorithm:FC13(medium)
Contrast agent:Iopamidol(370mg/ml),4ml/sec