[Castor-users] error in TOF results

[Hadi Rezaei]

Hi Marina
I am sorry if my message is not clarified. I simulated a PET data at one
time ( I didn't change the PET scanner) but I reconstructed this data with
different TOF values.
Best
Hadi

On Wed, Mar 3, 2021 at 1:33 PM Marina Filipovic <
marina.filipovic.work at gmail.com> wrote:

> Sorry I didn't see the previous message. If you use a wrong TOF resolution
> in the reconstruction, different from the nominal TOF resolution of the
> scanner, it is normal that you get issues in the reconstruction.
>
> Marina Filipovic
>
>
> On Wed, Mar 3, 2021 at 10:48 AM Hadi Rezaei <hrezaei.m.ph at gmail.com>
> wrote:
>
>> Hi Simon
>> Thank you for your reply
>> Yes, I used the same dataset for all reconstructions.
>> Best regards
>> Hadi
>>
>>
>> On Wed, Mar 3, 2021 at 1:14 PM STUTE Simon <simon.stute at chu-nantes.fr>
>> wrote:
>>
>>> Dear Hadi,
>>>
>>>
>>> Are you using the same dataset for your different reconstructions ?
>>>
>>>
>>> Simon
>>>
>>>
>>> ------------------------------
>>> *De :* Castor-users <castor-users-bounces at lists.castor-project.org> de
>>> la part de Hadi Rezaei <hrezaei.m.ph at gmail.com>
>>> *Envoyé :* mercredi 3 mars 2021 10:33
>>> *À :* castor-users at lists.castor-project.org
>>> *Objet :* [Castor-users] error in TOF results
>>>
>>> Dear CASToR users
>>> I used the castor3.0.1 to reconstruct a PET data of some cylindrical
>>> phantoms and I used different TOF_reso values and also non TOF case. But I
>>> found that the SNR value of the non TOF was bigger than the TOF cases of
>>> 400,300,200 ps ( with decreasing the TOF value the SNR decreased) . Should
>>> I modify the TOF command in Cdh file to apply the TOF on the image quality?
>>> Did anyone face this issue?
>>> Thank you so much.
>>> Hadi
>>>
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