Type:
Educational Exhibit
Keywords:
Lung, Respiratory system, Thorax, CT, Cone beam CT, Diagnostic procedure, Computer Applications-3D, Chronic obstructive airways disease, Cancer
Authors:
H. Moriya; Fukushima-city/JP
DOI:
10.1594/ecr2013/C-1241
Background
With the advent of 320-row ADCT,
dynamic volume scanningis now available.
However,
an increase in radiation exposure is an issue.
(fig.1 two types of CT scanning)
Recently,
the dose reduction techniques,
the scanning condition setting for decrease exposure dose,
Adaptive Iterative Dose Reduction (AIDR3D) and a post-processed method using non-rigid registration (PhyZiodynamics),
has been developed.
Therefore,
image quality using low-dose scanning is greatly improved,
and dynamic respiratory motion images are able to obtain.
fig.2 dynamic respiratory scanning images of pig lung phantom
fig.3 video images of fig.2
Movements of each lobular structure can be observed during the breathing: expansion and collapse of each lobule.