plot Time-activity curve from .TAC file using Matlab

I'm new in Matlab and I have a problem with plotting a Time-activity curve from a binary file. The info I have about the file is: *.tac files are decoded like this:

1. n (16-bit integer) number of samples of time-activity curve
2. atot (32-bit integer) total activity injected in phantom (only needed if not simulating whole-body phantom)
3. -deltaT (32-bit float) time-step (with negative sign) of activity concentration data that follows
4. activity array (32-bit float) with length = n

I've linked the file in the zippyshare link: https://www99.zippyshare.com/v/uZPRrEYj/file.html

What I've done is:

P=('int16');

x = ('ieee-le');

fileID = fopen('/Users/Viktor/Documents/Marbete/female_pat117/v1/c1.tac');

A = fread(fileID, P , x);

fclose(fileID);

and I dont know how to continue from this point.

Regards Viktor

Answer 1

[Anmol Dhiman]

Hi Viktor,

I am afraid we cannot open .tac file in MATLAB. You can extract the 4 variables mentioned above from third party software and can use MATLAB for plotting them.

Regards,

Anmol Dhiman