PEPconnect

WARP & SEMAC

This job aid will go over the WARP and SEMAC sequences. It will discuss the licenses needed for these sequences.

WARP and SEMAC Job Aid Advanced WARP – SEMAC Advanced WARP includes Slice Encoding for Metal Artifact Correction (SEMAC).  SEMAC provides through-plane distortion correction by performing an additional phase encoding step in the slice direction.  SEMAC is also the most effective for severe field, for example near large metal structures such as full joint replacement of the hip or knee. SEMAC can only be applied in combination with:  View Angle Tilting (VAT) set to 100%  Slice Distance of 0% Please note: The measurement time is prolonged by the number of SEMAC steps. Since SEMAC increases Signal-to-Noise, to reduce scan time decrease the averages, apply parallel imaging or use partial Fourier. The required number of SEMAC phase-encoding steps depends on the size, shape and material of the implant and may vary from patient to patient.  Joint arthroplasty 8-12 SEMAC steps is typically recommended  Metals causing stronger artifacts, such as stainless steel or cobalt chromium alloys, re- quire higher SEMAC steps (Note: Factors may vary from patient to patient.)  Titanium implants usually require lower SEMAC values or no SEMAC at all Please note: SEMAC cannot be used in combination with 3D TSE, BLADE, TimCT, multiple slice groups, and DIXON. Advanced WARP – Licenses Licenses or Dot Engines that offer SEMAC:  Advanced WARP - WARP-SEMAC with TSE Sequences  Large Joint Dot Engine  Large Joint Dot Engine Upgrade Package  C-Spine, T-Spine and L-Spine Dot Engine Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 Master Template Effective Date: 05 MAR 2020 | HOOD05162003074494 SIEMENS Job Aid Effective Date: 10 SEP 2020 | HOOD05162003091607 Healthineers Job Aid | WARP and SEMAC Effective Date: 10 SEP 2020 | HOOD05162003091607| US 1/5/2021 HOOD05162003145331 Without SEMAC With SEMAC Without SEMAC /With SEMAC SEMAC – Sequence – Part 2 Parameter Card SEMAC is available when the WARP checkbox is activated in the Sequence/Part 2 Parameter Card. Routine Contrast Resolution Geometry System Physio Inline Sequence Part 1 Part 2 Assistant Introduction WARP VAT 100 9 SEMAC 12 Phase Correction Automatic Red. EC Sensitivity Compensate T2 Decay Acoustic noise reduction Off Reduce Motion Sens. SEMAC 12 0. 32 Disclaimer: MR imaging of patients with metallic implants brings specific risks. However, certain implants are approved by the governing regulatory bodies to be MR conditionally safe. For such implants, the previously mentioned warning may not be applicable. Please contact the implant manufacturer for the specific conditional information. The conditions for MR safety are the re- sponsibility of the implant manufacturer, not of Siemens. Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 05 MAR 2020 | HOOD05162003074494 Job Aid Effective Date: 10 SEP 2020 | HOOD05162003091607 Healthineers Page 2 of 3 Job Aid | WARP and SEMAC Effective Date: 10 SEP 2020 | HOOD05162003091607| US 1/5/2021 HOOD05162003145331 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 ‘Op- erator 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's Manual shall be used as your main reference, in particular for relevant safety information like warnings and cautions. 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. Copyright © Siemens Healthcare GmbH 2020 Siemens Healthineers Headquarters Siemens Healthcare GmbH Henkestr. 127 91052 Erlangen, Germany Phone: +49 9131 84-0 siemens-healthineers.com Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 05 MAR 2020 | HOOD05162003074494 Job Aid Effective Date: 10 SEP 2020 | HOOD05162003091607 Healthineers Page 3 of 3