How to manage SAR

SIEMENS Healthineers SAR – Overview and Warnings Template Effective Date: 27 MAY 2019 | HOOD05162003010284 Job AidEffective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 SAR – SIEMENS Healthineers Table of Contents Specific Absorption Rate (SAR) 3 SAR in normal condition 4 Stimulation Monitor Information ? X Stimulation Monitor Operating Mode SAR warning 5 for current measurement Normal mode form next measurement on Normal Mode} SAR info in Expert user interface 6 Displayed values belong to the cuttent patient Predicted values Measured values Lookahead safety factor -9999.00 Stimulation level -999900.0 % -999900.0 % Stimulation threshold exceeded? No No Stimulation limit exceeded? NO No Close Head | Stand SAR NM 0:30 O 0:30 1:00 0:30 0:30 0:30 Stimu NM Localizer Quality Check T1 sag dark T2 tra T2 tra dark Diff tra T1 tra Summary fluid Huid 2 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 Specific Absorption Rate (SAR) SIEMENS Healthineers SAR stands for Specific Absorption Rate and SIEMENS X Healthineers Mika Mueller Head describes how much heat is generated in the T2 tra Scan Time 1:00 min patient's body. It is an important parameter in MRI as Repeat Scan it relates to patient safety. SAR is calculated based on the height and weight of the patient. During the examination, it is important that the maximum SAR levels are not exceeded. W 817 C381 If SAR is exceeded, the system will inform you and provide suggestions for possible solutions. Head | Standard Scan | 1:30 remaining time SAR NM > O 0:30 0:30 0:30 12 tra dark fluid Start Stimu NM Localizer Quality Check 12 tra 12 tra dark Diff tra 11 tra Summary 2:56:41 PM 3 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 SAR Monitoring SIEMENS Healthineers 1. You can check SAR at any time. This area will give you general information about SAR and 2 SAR Information x changes its color when it gets to the limit and SAR monitor operating mode Current Measurement NM turns red when the measured SAR approaches Next Measurement NM the limit. Prediction Status Patient Protocol Current 2. By clicking on the SAR area, you can open a Displayed values belong to the current patientl Name Value Unit window to get detailed information on SAR for Name dp_20210701, Vol HN your patient’s examination. Sex Male Age 65.0 years Registered Body Weight 189.6 lb SAR body weight 189.6 Ib Patient direction Head First Specific energy dose 1.0 J/lb Brain Autopilot | St 1 3:53 Remaining Time Close SAR NM 2:58 4:42 2:33 2:35 6:05 Stimu NM AAHead_Scout Check Image t1_se_sag t2_tse dark- ep2d diff t2 tse tra Check Image Inject contrast 11 mprage_ Summary Quality fluid_tra_p2 4scan_trace ... Quality sag iso 4 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 SAR Warning SIEMENS Healthineers 3 If SAR is exceeded, an action has to be SARLimit(s) Exceeded performed to reduce it. The step cannot be executed because it would exceed the SAR Limit(s). Please choose one of the following solutions: The system will provide: Pause next Scan 1. Visual indication The following scan T2 tra fluid is paused 2. Warning messages Implications 3. Options for decreasing SAR under the Time Image Quality maximum threshold Anatomy Coverage Apply Decrease Number of Slices If this happens during the examination, please Adjust Flip Angle read the message carefully and select the most suitable option in the pop-up message to Cancel restore the SAR level. S 1 rain Standard TU:ZO VCTUICIUCHUG ZEIT 2 00:42 00:47 00:38 00:25 o Stimu Localizer T1 sag dark T2 tra T2 tra dark Diff tra 11 tra fluid fluid 5 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 SAR info in Expert User Interface SIEMENS Healthineers Note: This is relevant for advanced professionals. 3 t1_se_sag 2 4 t2_tse_dark-fluid_tra_p2 SAR Information ? x 1. In the Expert View, you can check SAR at any 5 ep2d_diff_4scan_trace_p2 6 t2 tse_tra SAR Monitor Operating Mode time by clicking on the respective area on the 7 t2_hemo Check Image Quality Current Measurement 5c Next Measurement . Normal Mode 00 screen. 19 Inject contrast First Level LA This area provides general information about SAR 10 t1_mprage_sag_iso TP Prediction Status Patient Protocol Current SP A52 259*25 >Sag(1 and changes its color when it gets to the 310 1 Displayed values belong to the last patient! 147 maximum limit. Name Value Unit GO Delete Skip Stop Pause Continue Copy&Go 2. By clicking on the SAR area, you can open a window to get detailed information on SAR for your patient’s examination. Please Note: In case SAR is exceeded, a pop-up message appears. If the SAR assistant is active, 1 Close indications similar to the Autopilot shown before are SAR Stimu nroom myExam Injector provided to give you further guidance. Settings Display Display Control First Level Mode Waiting for scan instructions. 6 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021 SIEMENS Healthineers 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. © Siemens Healthcare GmbH 2021 Siemens Healthineers Headquarters Siemens Healthcare GmbH Henkestr. 127 91052 Erlangen, Germany Telephone: +49 9131 84-0 siemens-healthineers.com 7 Effective Date: 07 JUL 2021| HOOD05162003203357 Unrestricted © Siemens Healthineers, 2021