[Intl_DxMedPhys] Fw: Digirad SPECT - Jaszczak phantom for ACR

Joseph Giardina jgiardina at petroneassoc.com
Tue Oct 20 11:02:41 EDT 2026


Subject: Re: Digirad SPECT - Jaszczak phantom for ACR


Anu

First thing is you actually want to center the phantom on the chair., not necessarily get as close to the detectors as possible

The other thing ive found is that the completed study defaults to an OSEM filter, so you should be able to reprocess it using a filtered FBP with the acr recommended butterworth filter which will make , especially the rods , look much better

Joe
Joseph Giardina, MS
Petrone Associates ( One Physics)
NYC

Good morning,

I an looking for some helpful tips and insights on acquiring ACR phantom images on the Digirad SPECT unit. I tested a Digirad X-act last week for the first time and followed the procedure that was provided by the company using the large phantom. The images were no where close to submission quality. Any suggestions would be greatly appreciated.
Thank you.

Best Regards,
Anu Soundararajan, PhD, DABR, DABSNM
Trinity Physics Consulting LLC
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