Quantum Technology – Emphasize Low-Energy Photons for a Richer Contrast Video

Slide:%Project.SceneNumber%.%Scene.SlideNumber% Continue Introduction to Photo-Counting Fundamentals Quantum Technology – Emphasize Low-Energy Photons for a Richer Contrast Follow an expert and a student as they discuss how low-energy photons contribute to a richer contrast in CT images. Explore the subject interactively. Master Template HILS2218 | Effective Date: 25 Mar 2022 ? Start Disclaimer Welcome EID Contrast information in an EID Select 2 answers. Knowledge Check 1 of 2 Why are EID CT scans less rich in contrast? ? Because an EID only measures photons with a specific energy. Because an EID doesn’t measure photons. Because an EID measures photons all together and high-energy photons are dominant in the resulting signal. Because an EID downweighs photons with lower energy. Knowledge Check 1 Incorrect EID CT scans are less rich in contrast, because an EID measures photons all together and high-energy photons are dominant in the resulting signal. In addition, an EID downweighs photons with lower energy. Continue Correct Continue PCD Iodine Contrast information in a PCD PCD Imaging Here you see a kidney case, mono between 45 and 75 keV. Move the slider to to see the difference between the PCD scans with the two keV levels. ? Example of EID vs. PCD Imaging Image courtesy of Charles University Hospital, Pilsen, Czech Republic Select 2 answers. Knowledge Check 2 of 2 Why is the contrast with a PCD better than with an EID? ? Because a PCD measures only the photons with the highest energy. Because a PCD measures the energy of each photon individually. Because a PCD measures an average of photon energy. Because a PCD can emphasize low-energy photons. Knowledge Check 2 Incorrect The contrast with a PCD is better than with an EID, because a PCD measures the energy of each photon individually and a PCD can emphasize low-energy photons. Continue Correct Continue CdTe Semiconductor PCD pulse-height [keV] time [ns] Threshold Film 3 Exit To access your Certificate of Completion, select the Certificates tab from the learning activity overview page. You can also access the certificate from your PEPconnect transcript. Disclaimer ? You have completed the Quantum Technology – Emphasize Low-Energy Photons for a Richer Contrast Video. Completion details, certificates tab Disclaimer Please note that the learning material is for training purposes only. For the proper use of the software or hardware, please always use the Operator Manual or Instructions for Use (hereinafter collectively “Operator Manual”) issued by Siemens Healthineers. This material is to be used as training material only and shall by no means substitute the Operator Manual. Any material used in this training will not be updated on a regular basis and does not necessarily reflect the latest version of the software and hardware available at the time of the training. The Operator Manual shall be used as your main reference, in particular for relevant safety information like warnings and cautions. Please note: Some functions shown in this material are optional and might not be part of your system. Certain products, product related claims or functionalities (hereinafter collectively “Functionality”) may not (yet) be commercially available in your country. Due to regulatory requirements, the future availability of said Functionalities in any specific country is not guaranteed. Please contact your local Siemens Healthineers sales representative for the most current information. The reproduction, transmission or distribution of this training or its contents is not permitted without express written authority. Offenders will be liable for damages. All names and data of patients, parameters and configuration dependent designations are fictional and examples only. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2025 Siemens Healthineers HQ | Siemens Healthineers AG | Siemensstr. 3 91301 Forchheim, Germany | Phone: +49 9191 18-0 | siemens-healthineers.com ? Disclaimer Navigation Help The timeline displays the progression of the animation. Slide the orange bar backwards to rewind the timeline. Click Next to continue. Next Tmeline Select the PREV or NEXT buttons to navigate to the previous or next section. Be sure to review all topics before navigating to the next slide. Click Next to continue. Next Previous / Next Navigation Select Submit to record your response. Click the X in the upper right corner to exit the navigation help. Knowledge Check Slide Question Bank 1 QR700005767 / QR700016713 | Effective Date: 27 Mar 2025 1 Introduction to Photo-Counting Fundamentals 1.1 Welcome 1.2 Contrast information in an EID 1.4 Contrast information in a PCD 1.5 Example of EID vs. PCD Imaging 1.6 Knowledge Check 2 1.7 Film 3 1.8 Completion 1.9 Disclaimer