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@CtSpectral2/ 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
#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.