[gate-users] PET simulations duration

[pasantos at bwh.harvard.edu]

Hi Corinne,



Thank you very much for your answer, this is exactly the information I was
looking for. Can I ask you something else? Have you run simulations using
realistic phantoms, of the torso for example? Would you know how much time
it would take in this case?



Again thank you very much,

Paula







> Hi,
>
> I am running GATE on an AMD Opteron (64-bits) 1.4 GHz cluster with 2 Go
> of RAM per dual-processor.
>
> To have a clinically realistic simulation of an F-18 acquisition (@ NEC
> peak - 2 min scan), it takes 15h to 24h depending on the size of the
> object on 120 CPUs.
>
> For example, I have ~24 million total coincidences in a 70-cm long,
> 20-cm diameter cylinder filled with water and 5.8 mCi of F-18 for a
> 2-min acquisition (the simulation takes 15h x 120 CPUs).
>
> Hope this helps,
> Corinne
>
> pasantos at bwh.harvard.edu wrote:
>
>>Dear all,
>>
>>I am trying to decide if I should use GATE to simulate PET acquisitions
>>with I-124 but, before I can actually install GATE and try it myself, I
>>would need to have an idea of the duration of a simulation either with
>>F-18 or I-124.
>>
>>Could you experienced users please tell me what kind of workstations you
>>are using and how much time it takes to run a simulation of a determined
>>number of events considering simple object geometries?
>>
>>I would really appreciate all the information you could provide me with.
>>
>>Thank you in advance,
>>Paula
>>
>>
>>
>>
>>
>
> --
>
> Corinne J. Groiselle, PhD
> Research Instructor
>
> Department of Radiology / Division of Nuclear Medicine
> University of Massachusetts Medical School
> 55 Lake Avenue North
> Worcester, MA 01655
> USA
>
> _Phone_: (508)-856-6123 - fax: (508)-856-4572
> _Email_: Corinne.Groiselle at umassmed.edu _
> Professional homepage_: http://users.umassmed.edu/corinne.groiselle
> Official UMASS faculty page:
> http://www.umassmed.edu/faculty/show.cfm?faculty=731
> _Personal homepage_: http://corinne.groiselle.free.fr
>
>
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>


-- 
Paula Alexandra Santos
Brigham & Women's Hospital
TEL: 617 525 6629
FAX: 617 732 6695