vessel diameter

Posted by Teodora-Adriana Barbacaru on Apr 04, 2007; 11:59am
URL: http://imagej.273.s1.nabble.com/vessel-diameter-tp3699813.html

Hi,

I need to estimate the mean vessel diameter of some tortuous tumor
vessels from vessel sections that do not look elliptical at all.

I did this in several ways:
the smaller side of the bounding rectangle
the diameter of the inscribed circle centered at the centroid
the breadth perpendicular to the feret diameter
minor axis of the best fitting ellipse

By the way, how does ImageJ fit the ellipse? Inscribed ellipse,
enclosing ellipse, ellipse with the same surface, having the feret of
the structure as major axis? What is the algorithm for this fit?

All methods result in different values. Does anyone know which is the
most appropriate method to determine the vessel diameter? Do you know
any references discussing advantages and disadvantages of every method?


Adriana Perles