PhD Qualifying Examination


"A Review on Enhancement Techniques in 2-D and 3-D Vascular Images"

By Mr. Chun Kit Wong


Abstract:

Vascular images are essential to the diagnosis and the prognosis of
vascular diseases which are major sources of death and disability
worldwide.  They help identification and analysis of the disease
pathology.  Furthermore, treatments can be planned with reference to
these images.  During an endovascular treatment, real-time acquired
vascular images play an important role in the visualization of the
patient's vasculature and the micro-catheter, which can assist the
interventionists to conduct the treatment.  However, due to the
limitation and the image formation physics of the imaging machinery,
noise and other irrelevant structures are present in the vascular
images.  Therefore, enhancement of the vasculature is necessary for
better interpretation and understanding of these images.

This report reviews several enhancement techniques for vascular
images.  These techniques were developed to reduce the image noise
and/or suppress the irrelevant structures in the images.  They are
classified by the nature of their mechanism: enhancement of (A)
curvilinear structures, (B) edges and (C) lines.  Advantages and
disadvantages of these techniques and the challenges in enhancing
vessels with disease pathologies are also discussed.


Date:     		Thursday, 20 January 2005

Time:                   2:00p.m.-4:00p.m.

Venue:                  Room 4502
			lifts 25-26

Committee Members:      Dr. Albert Chung (Supervisor)
                        Dr. Chiew-Lan Tai (Chairperson)
			Dr. Huamin Qu
			Dr. Long Quan


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