[Intl_DxMedPhys] Artifact?

[Szczykutowicz, Timothy P]

I think your image is lead shot.

Another one below, my uncle (shared with permission, from images requested using proper pipeline, not me taking from my PACS...) from turkey hunting 2024. Some uncle on uncle lead spraying. (I wont tell the story on this list, as it would be off topic, but if anyone wants to hear it, find me at aapm ;) My uncle lived, got a helicopter ride to my hospital from my cabin)

I think for a case of the day, one of ferro vs non ferro bullet comp would be good, there are plenty of papers out there on this, one that simply used the fragmentation likelihood of lead to identify lead bullets could be a good one for residents. Not sure if that is physics though. I have seem some spectral papers as well for bullets, so there could be a spectral CT angle for bullet composition. I just saw a cool one using the siemens alpha for this. You could probably reach out the authors and see if they could share some images. https://urldefense.com/v3/__https://www.sciencedirect.com/science/article/pii/S0720048X24006144__;!!KGKeukY!0EILyF69jxe_sUMVPGPybbL-eC9j5OvBEzBQr7vz4pqzg1acaaKxefegJZ4vz3uNaWojmtbDtI53cgnPaxjGdCk1dqC1yB8xIs_hllJ1LqfefHTfUg$ 
(although I think those authors should have also shot them into ballistic gel because that changes the shape a lot depending on bullet material and design)


[cid:5c4ce1b6-5902-4dc1-80a8-76dc8c521b10]

Timothy P. Szczykutowicz, Ph.D., DABR
Professor
Departments of Radiology, Medical Physics and BME
University of Wisconsin Madison
Cell# 1-716-560-7751<tel:(716)%20560-7751>
Office# 1-608-263-5729
he/him/his



________________________________
From: Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list-bounces at lists.osu.edu> on behalf of Nima Kasraie via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu>
Sent: Saturday, January 10, 2026 11:55 AM
To: DxMedPhys List <intl_dxmedphys_wd_osu_list at lists.osu.edu>
Subject: [Intl_DxMedPhys] Artifact?


WARNING: This email appears to have originated outside of the UW Health email system.
DO NOT CLICK on links or attachments unless you recognize the sender and know the content is safe.

Hey listers What do you think this 'artifact' is? Oh never mind. I almost forgot AAPM tries not to get involved into politics. But you do agree it would make a good 'Case of the Day' for an RSNA session?😄 This one was a peds case btw. 😬😡 Nima
Hey listers

What do you think this 'artifact' is?

Oh never mind. I almost forgot AAPM tries not to get involved into politics.

But you do agree it would make a good 'Case of the Day' for an RSNA session?😄

This one was a peds case btw.😬😡

Nima Kasraie, PhD
Diagnostic Imaging Medical Physicist
Associate Professor of Radiology
UT Southwestern - Children’s Medical Center Dallas

________________________________

UT Southwestern

Medical Center

The future of medicine, today.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.osu.edu/mailman/private/intl_dxmedphys_wd_osu_list/attachments/20260112/90c87339/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 783022 bytes
Desc: image.png
URL: <https://lists.osu.edu/mailman/private/intl_dxmedphys_wd_osu_list/attachments/20260112/90c87339/attachment.png>