Hiroshi Moriya MD, Presenter: Nothing to Disclose

Manabu Nakagawa, Abstract Co-Author: Nothing to Disclose

Koutarou Sakuma, Abstract Co-Author: Nothing to Disclose

To visualize the quantified images of lung parenchyma movement by dynamic respiratory CT and 4D voxel-tracking method. To display the regional respiratory movement of cases with typical respiratory diseases.  

[Objective] A range of 16 cm can be scanned in a single rotation with 320-row ADCT. Dynamic motion images are obtained by using continuous scanning. The purpose of this presentation is to visualize the quantified images of regional lung parenchyma movements. [CT scan] 320-row ADCT (Aquilion ONE), continuous dynamic volume scanning. [4D voxel-tracking method] PhyZiodynamics; the 3-dimensional structures are tracked from dynamic volume data (voxel-to-voxel mapping). [Methods] The respiratory phases are obtained from the motion of the diaphragm, and the temporal changes of the points, areas, and volumes associated with the respiratory phases are analyzed. [Cases] Lung cancer or mediastinum tumor patients with respiratory disorder (COPD, IPF, tracheobronchimalacia, etc.). [Conclusion] The difference in movement can be displayed by using dynamic volume scanning. These dynamic movements may be correlated with the regional lung function.  

http://abstract.rsna.org/uploads/2014/14010512/14010512_subf.pdf

Moriya, H, Nakagawa, M, Sakuma, K, Quantification of Regional Lung Parenchyma Movement using Dynamic Respiratory CT.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14010512.html