Dr. Tim 'Stick' Szczykutowicz Profile picture
Associate Professor of Radiology at the University of Wisconsin Madison. I do CT. Inventor (4×patents). 2x @rsna 5k run 🥇 @UWiscRadiology
Aug 15, 2022 11 tweets 4 min read
1/ DECT
Let's look at 1. Fast kV switching (GE, Canon), 2. Dual source (Siemens), 3. Split layer detector (Philips), 4. Split filter (Siemens), 5. Rotate-Rotate (Siemens) #radiology @UWiscRadiology @SABImaging @JCATonline @Radiology_Works @ctisus @mmahesh1 @CtSpectral 2/ First thing, all vendors will claim they are the best. Make them show you a low keV (~40-50) mono image at a dose you would use for a pt sz that's not tiny... often these images have a ton of patchy noise because the vendor is desperately trying to solve noise issues with IR
Dec 18, 2021 27 tweets 10 min read
1/xx How CT images display on PACS (more than your attending may know...😉) @ctisus @CtSpectral @mmahesh1 #radres @Radiopaedia @UWiscRadiology @aapmHQ @MP_Hartung @Radiology_Works @aapmHQ @JCATonline @RadioGraphics 1/xx 1️⃣ PACS will show each series in a thumb nail view. Since most sites have horrible standardization, get ready to see chaos up here (different names and numbers of series for the same indication from different scanners). Maybe this can help you 📷 ⬇️
Jun 4, 2020 9 tweets 4 min read
#Tweetorial #radiology @aapmHQ
(1/8) Multiphasic CT protocols are an awesome place to start working as a team (rad, tech, technical person). Considerations must be made for contrast deliver, scan timing, and scan speed. Lets go over these things. (2/8) Contrast delivery. Dosing should be weight based. Medrad P3T does it for you, all other injectors you'll need to have an in-house look up table. We care most about total mg of I and injection duration. I included equations to help you here.