Multitom Rax Real3D – Differences between the Organ Programs Job Aid

Real3D – differences between the organ programs Multitom Rax – Real3D In your PEX database, you will find different types of Real3D organ programs (OGP) for the same region of interest. For example: • 3D Hand • 3D Hand HQ • 3D Hand Metal • 3D Hi-Res Hand • 3D Hi-Res Hand HQ • 3D Hi-Res Hand Low Dose • 3D Hi-Res Metal Based on these examples, the differences between the various OGPs are explained below: 1. Standard OGP vs. High-Quality OGP e.g. 3D Hand vs. 3D Hand HQ or 3D Hi-Res Hand vs. 3D Hi-Res Hand HQ A high-quality (HQ) OGP differs from a standard OGP by an increased mAs value. This leads to a higher image quality, but also to a higher dose. 2. Standard OGP vs. Metal OGP e.g. 3D Hand vs. 3D Hand Metal or 3D Hi-Res Hand vs. 3D Hi-Res Hand Metal A metal OGP differs from a standard OGP by utilizing a higher kV value to increase radiation penetration in the region of interest, which contains metal implants. To minimize metal-in- duced artifacts, you can use a dedicated metal artifact reduction (MAR) method. This method reduces the number of streaks in the scan and also reduces the bright and dark ar- eas of the surrounding metallic implants. Without metal artifact reduction With metal artifact reduction This software-based artifact reduction method is optionally available, even during standard acquisition modes. This is useful when metal presence is not known prior to scanning. Con- versely, it is still possible to turn off the artifact reduction even if you use an acquisition mode for metal implants for the data acquisition. You can re-process the scan with a differ- ent reconstruction kernel in the syngo.via View&GO. Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2024 SIEMENS Master Template Effective Date: 21 Apr 2023 | HILS 2224 Job Aid Effective Date: 07 Aug 2024 | QR700011475 Healthineers Job Aid | Real3D – differences between the OGPs Effective Date: 07 Aug 2024 | QR700011475 3. Standard OGP vs. High-Resolution OGP e.g. 3D Hand vs. 3D Hi-Res Hand Real3D High-Resolution (Hi-Res) is an optional feature and may not be available on every system. It enables the user to acquire high-resolution scans of the upper extremities and is only available for hand, wrist and elbow. The following graphic and table show the differences between a standard OGP and a high- resolution OGP: X-ray source X-ray source Focal spot 0.6 mm Focal spot 0.6 mm Object Object Detector Detector 2x2 binned pixel 1x1 unbinned pixel 0.296 mm 0.148 mm Area of less sharpness Area of less sharpness 1 Normal scan mode High-resolution scan mode Standard OGP High-resolution OGP Spatial resolution Up to 16 lp/cm Up to 32 lp/cm Trajectory Circular trajectory Modified trajectory Detector readout 2x2 binned 1x1 un-binned Reconstructed volume Cylinder with a di- Cylinder with a diameter and height ameter and height of 16 cm of 24 cm Dedicated reconstruc- Smooth Smooth tion kernel Medium Medium Sharp Sharp Very sharp for syngo.via View&GO .............. ............... Source of figure: White Paper: Multitom Rax Real3D for Musculoskeletal and Trauma Imaging - Imaging Technique and Clinical Application (QR700009143) SIEMENS Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2024 Master Template Effective Date: 21 Apr 2023 | HILS 2224 Healthineers Page 2 of 4 Job Aid | Real3D – differences between the OGPs Effective Date: 07 Aug 2024 | QR700011475 4. Standard Hi-Res OGP vs. Low Dose Hi-Res OGP e.g. 3D Hi-Res Hand vs. 3D Hi-Res Hand Low Dose Low-dose organ programs are only available for the high-resolution scan mode. The differ- ence between a standard Real3D Hi-Res OGP and a Low Dose OGP is the significant reduc- tion of the kV and mAs values used for the scan. In addition to the different organ programs there are four dedicated reconstruction kernels availa- ble, which mimic well-known multi-detector CT (MDCT) image impressions: Smooth, medium, sharp and very sharp. Smooth • Mainly intended for Volume Rendering Technique (VRT) rendering • Image impression corresponding to multi-detector CT kernels: Qr44 kernel Medium • Good balance between resolution and noise • Image impression corresponding to multi-detector CT kernels: Br62 kernel Sharp • Higher bone contrast and spatial resolution • Image impression corresponding to multi-detector CT kernels: BR69 kernel Very sharp (hi-res only) • Highest bone contrast and spatial resolution • Image impression corresponding to multi-detector CT kernels: UR77 kernel SIEMENS Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2024 Master Template Effective Date: 21 Apr 2023 | HILS 2224 Healthineers Page 3 of 4 Job Aid | Real3D – differences between the OGPs Effective Date: 07 Aug 2024 | QR700011475 Please note that this 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 ex- press 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. Siemens Healthineers HQ I Siemens Healthineers AG Siemensstr. 3 91301 Forchheim Germany Phone: +49 9191 18-0 siemens-healthineers.com SIEMENS Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2024 Master Template Effective Date: 21 Apr 2023 | HILS 2224 Healthineers Page 4 of 4