Friday, November 7, 2008

Vessel Wall Analysis improvement

Currently I'm working on an improvement for the Vessel Wall Analysis (for Prof. Schmieder/Med 4, Erlangen).

The goal is to overcome the granularity of 10µm of the DC diameter calculation. The screen shots below show the difference between the old and new (first) algorithm. The DC and Flow cross sections are interpolated to achieve sub-pixel resolution (remember: the pixel resolution is 10µm * 10µm at a record angle of 10°).


Figure 1: Current algorithm for computation of DC and Flow diameter


Figure 2: New algorithm for computation of DC and Flow diameter
Reason for this improvement was the fact that the DC diameter varies in 10µm steps whereas the Flow diameter varies in 1µm steps. With that the Wall Thickness varies by leaps and bounds!




2 comments:

Ramya said...

can i get the SLDF software for checkout my results obtained.

It's urgent because i have to finish of my project within 2 days

Dr. J.Welzenbach said...

As mentioned some weeks before please contact Prof. Dr. R. Schmieder. I'm not authorized to hand out installation files/media.

Prof. Dr. Roland E. Schmieder (Joanna Harazny)
Clinical Research Centre
Department of Nephrology and Hypertensiology
University Hospital Erlangen
Krankenhausstrasse 12
D-91054 Erlangen Germany
Email: Roland.Schmieder@uk-erlangen.de