function voxelList = parseCoordinateTextField(model)
s = get(model.txtVoxelDef,'String');
rows = size(s,1);
voxelList = [];
for i = 1:rows
    if all(isspace(s(i,:)))
        continue;
    end
    line = s(i,:);
    if (strfind(line,'+'))
        % has radius
        [roi rem] = strtok(line,'+');
        rad = eval(str2mat(rem(2:end)));
    else
        % radius set to 0
        roi = line;
        rad = 0;
    end
    coord.name = roi;
    coord.rad = rad;
    voxelList = [voxelList; coord];

end
end