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C-0810 - A New Image Reconstruction Technique Using a Computed Tomography Lung Subtraction Method for the Assessment of Lung Perfusion

K. Fukushima1, M. Koyanagi1, T. Kariyasu1, S. Takahashi1, I. Miyazaki1, A. Nakanishi1, K. Yokoyama2, T. Nitatori1, M. Tsuboi1; 1 Tokyo/JP 2 MItaka-shi Tokyo/JP Type: Scientific Exhibit
Area of Interests: Lung, Cardiovascular system
Imaging Techniques: CT, CT-Angiography
Procedure: Comparative studies
Special Focus: Embolism / Thrombosis
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Aims and objectives: Chronic thromboembolic pulmonary hypertension (CTEPH)   Chronic thromboembolic pulmonary hypertension (CTEPH) results from incomplete resolution of the vascular obstruction caused by pulmonary thromboembolic material, which leads, if untreated, to a gradual hemodynamic and symptomatic decline [...]

Methods and materials: Imaging system   320-row CT scanner Aquilion ONETM/ ViSION Edition Version 6.0 (Toshiba Medical Systems Corporation, Otawara, Japan)   Work station    ZIOSTATION 2 (AMIN Corporation, Tokyo, Japan)    Patients  A total of 35 patients with chronic thromboembolic pul[...]

Results: Results     It shows correlation between Lung MAP and planar-LSV attenuations scores for each segment( Fig. 9 ).   We found strong correlation between two images in almost all of the segment.   This shows correlation between Lung MAP and planar-LSV attenuations scores for ea[...]

Conclusion: Conclusion Lung perfusion observed on our planar-LSV image is comparable to that observed on a Lung MAP image and could be used as a new assessment tool to evaluate lung perfusion.

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References: Herre J Reesink, J Tim Marcus, PhD et al (2007) Reverse right ventricular remodeling after pulmonary endarterectomy in patients with chronic thromboembolic pulmonary hypertension: Utility of magnetic resonance imaging to demonstrate restoration of the right ventricle. J Thorac Cardiovasc Surg 133:58[...]

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