[Intl_DxMedPhys] PET artifact

[Nima Kasraie]

Hello group

Here is a PET WB Corrected recon from a Siemens Biograph 3R:

[cid:image001.png at 01DBAE0C.B5699E00]

No FDG signal shows up on the ITER TOF recon at same place. A void just suddenly shows up in the abdomen not unsimilar to MRI Susceptibility artifacts we used to see as students:

[cid:image002.png at 01DBAE0C.B5699E00]

Is this a case of mis-registration, or am I looking at Scatter as the culprit?


P.S. The raw data got erased off the scanner. So I cant do any new recons. But I'd like to know if my suspicion is correct.






Nima Kasraie, PhD, MSc, DABR (D), DABSNM (I)
Associate Professor of Radiology
Medical Physics Division

Department of Radiology
5323 Harry Hines Blvd., Dallas, Texas 75390-9071
Phone: 214-648-7978
https://urldefense.com/v3/__http://www.utsouthwestern.edu/radiology__;!!KGKeukY!3E8naH4_Z58rUacSdZFpQlPndb9RG7JCYvzBi45dRXdlJBSLL7WBLBKe2X1aDIxOB8CDKwl0XJmBCjiVURyCfLaomunGwhkdwZuxroiWwteysyMWccECeQ$ <https://urldefense.com/v3/__http://www.utsouthwestern.edu/radiology__;!!KGKeukY!3E8naH4_Z58rUacSdZFpQlPndb9RG7JCYvzBi45dRXdlJBSLL7WBLBKe2X1aDIxOB8CDKwl0XJmBCjiVURyCfLaomunGwhkdwZuxroiWwteysyMWccECeQ$ >

[cid:image003.png at 01DBAE0C.B5699E00]


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Medical Center

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