how to find the cavity area

sir,

my project is under the echocardiographic image. i need to find the cavity area using the echocardiographic image. In my paper specifies the LV cavity area is determined by using the average echocardial radius in the frame.how to find the radius and also the LV area

[José-Luis]

What have you done so far?

[ajith]

i done the level set for boundary detection

[Image Analyst]

OK then. Good luck with that.

[ajith]

sir if you know about how to calculate LV cavity area inform to me

[Walter Roberson]

radius -- regionprops() for equivalent diameter ?

[Image Analyst]

I might - who can tell with no image to look at? - but these people almost certainly have done it. But maybe your level set method worked - again, who can tell?

[ajith]

now i do Feature extraction in 2-D short-axis echocardiographic images . in my project i gave two features 1. Ejaction Fraction 2. Cavity area

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

[ajith]

http://www.filesin.com/08E05297030/download.html

[Walter Roberson]

As a volunteer, I am not going to put up with a 48 second imposed download delay (to try to "encourage" me to pay for downloading!), followed by a recaptcha "prove you are human" test, just to view an image file. If you want volunteer assistance, make viewing your file free and fast, such as by using tinypic

[ajith]

sorry about my fault sir

http://i48.tinypic.com/333bpzo.jpg

Answer 1

[Walter Roberson]

rp = regionprops( ~YourThresholdedImage, 'Area');
cavity_area = rp.Area;