SPAIR Fat Saturation

SIEMENS Healthineers SPAIR Job Aid Version 2020.08 Template Effective Date: 27 MAY 2019 | HOOD05162003010284 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR – SIEMENS Healthineers Table of Contents SPAIR @3T 3 SPAIR Body Imaging 4 R R SPAIR Region 5 SPAIR – in general 8 2 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR @3T SIEMENS Healthineers For 3 Tesla systems, there are some options for Fat SIEMENS >> breast >> library Dot >> T2 > t2_tse_spair_tra_p2 X General @ 4:02 min Auto @ 2 0.9x0.9x4.0 mm3 1.00 Suppression using the SPAIR technique, optimized for Protocol Parameters Routine Contrast Resolution Geometry System Physio Inline Sequence Voice Commands Execution Common Dynamic different body regions. Image Management TR 5000.0 - ms Fat-Water Contrast SPAIR Auto Load cann Dat Caturation Stenmm Copy Re • SPAIR Region Options: Default (equivalent to SPAIR on Fat Suppression Optimization ? X Preview previous software), Abdomen & Pelvis, Thorax & Breast Region Abdomen & Pelvis Default • Region option can be found by selecting the icon Abdomen & Pelvis Breast Thorax to the right of the Fat Suppression option. This will open the Fat Suppression Optimization window where you can choose the appropriate region from the dropdown list. Addin Close • Available sequences: Turbo Spin Echo, BLADE, SPACE, HASTE, VIBE, EP2D_DIFF 3 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR Body Imaging SIEMENS Healthineers Two SPAIR modes with a high-bandwidth, fat saturation Thorax ~ 620 Hz ~ 255 Hz pulse help to avoid incomplete or inhomogeneous fat Water saturation in challenging regions of the torso. ~ 620 Hz ~ 135 Hz Abdomen & Pelvis Here, magnetic field in-homogeneities may result in a ........ Default ~ 400 Hz ~ 255 Hz broadened fat peak, defined by the orange arrows, which Fat is not sufficiently covered with the default pulse of 400 Hertz. Broadened saturation pulses of 620 Hertz will reliably suppress the residual fat signal. For the Breast mode, -6.0 -5.0 -4.0 -3.0 -2.0 . 1.0 0.0 1.0 2.0 3.0 which is not covered within the graphic, the values are Chemical Shift (ppm) 640 Hz (blue) and 230 Hz (red). This technique can be combined with all sequences that support SPAIR, e.g. VIBE in the abdomen or Turbo Spin Echo in the breast. 4 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR Region – Abdomen & Pelvis SIEMENS Healthineers Here are some examples showing the new SPAIR Abdomen and Pelvis mode compared to the traditional Default mode. Note the improved fat suppression when using the SPAIR Abdomen and Pelvis mode. VIBE with: Default Abdomen & Pelvis R R 5 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR Region – Abdomen & Pelvis SIEMENS Healthineers Here are some examples showing the new SPAIR Abdomen and Pelvis mode compared to the traditional Default mode. Note the improved fat suppression when using the SPAIR Abdomen and Pelvis mode. VIBE with: Default Abdomen & Pelvis R R 6 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR Region – Thorax SIEMENS Healthineers Here are some additional examples showing the SPAIR Thorax mode compared to the traditional Default, Abdomen & Pelvis and Breast modes. Please note: The Abdomen and Pelvis mode may lead to water saturation if used in other body regions, especially when using it in the Thorax. Default Abdomen & Pelvis Breast Thorax 7 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR – HASTE SIEMENS Healthineers The HASTE sequence also offers some fat saturation improvements when using SPAIR. Previously, at times when selecting the Weak or Strong Fat Sat Mode for the SPAIR HASTE sequence, the behavior of the Fat Sat Modes weak and strong were swapped. Now when using SPAIR, the Fat Sat Modes have been improved: • Strong – fat signal completely suppressed (black) • Weak – residual fat signal visible • Improved Fat Suppression Weak Strong A R 8 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR – 3D HASTE: PACE Technique SIEMENS Healthineers These examples compare the HASTE using the SPAIR fat suppression, Fat Sat Mode Weak & Strong with the PACE technique. The fat signal is also independent from the TR and Trigger mode selected. Weak Strong R R 9 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 SPAIR – 3D HASTE: Breath Hold SIEMENS Healthineers These image examples compare the HASTE Breath-hold with SPAIR fat suppression using Fat Sat Mode Weak & Strong. The fat signal is also independent from the TR and Trigger mode selected. Weak Strong R 10 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020 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'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 Telephone: +49 9131 84-0 siemens.com/healthineers 11 Effective Date: 10 SEP 2020 | HOOD05162003125050 Unrestricted © Siemens Healthineers, 2020