Hi,
That's right - a positive number indicates that tp2 > tp1 in terms of volume.
All the best,
Mark
On 23 Jul 2011, at 18:59, Gonzalo Rojas Costa wrote:
> Hi:
>
> Maybe a foolish question: if I do a longitudinal comparison with
> SIENA tp1 tp2, and I got a positive PBVC value, that means that tp2
> has more volume than in tp1 ?...
>
> Sincerely,
>
>
> Gonzalo Rojas Costa
>
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