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Confirm Frequency Adjustment - Eline

The Confirm Frequency Adjustment Job Aid reviews how to perform semi-automatic adjustments for Fat, Water, or Silicone suppression on MR Systems with Eline software.

Confirm Frequency Adjustments Eline Job Aid Confirm Frequency Adjustments – Eline Confirm Frequency is a parameter used to perform semi-automatic adjustments for Fat, Water, or Silicone Suppression. 1. Open Pulse Sequence a. Select System > Adjustments 2. Select Confirm Freq. adjustment a. Select Only after freq. change – Confirm Frequency Adjustment box only appears if resonance frequency was changed due to an inline adjustment. Routine Contrast Resolution Geometry System Physio Inline Sequence Coils Miscellaneous Adjustments Adjust Volume Tx/RX BO Shim mode Standard B1 Shim mode TrueForm Adjustment Tolerance Auto (None) Adjust with body coil Confirm freq. adjustment Vi Only after freq. change Assume Dominant Fat Assume Silicone 3. Select Apply (Green Checkmark) – Sequence runs and starts the shim process a. Shim Concluded > “Confirm Frequency Adjustment” box appears b. Peaks i. Fat Peak – Left Peak (lower frequency) ii. Water Peak – Right Peak (higher frequency) c. Frequency Differences – precessional frequency differences between Fat & Water i. 1.5T = 220 Hz ii. 3T = 440 Hz Unrestricted 0 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 3/5/2020 | HOOD05162003074494 Job Aid Effective Date: 08/03/2020 | HOOD05162003109312 Healthineers Job Aid | Confirm Frequency Adjustments – Eline Job Aid Effective Date: 08/03/2020 | HOOD05162003109312 4. Fat Suppression – Tick Mark over Water Peak a. Verify White Tick Mark is over Water Peak i. No Changes – select Continue to start the scan Confirm Frequency Adjustment X [Max] 8,816 FWHM [Hz] 109.4 Fat Peak (Left) Water Peak (Right) Mag f [Hz] 123.157.118 123.162.226 Coil Combined ADC - Frequency (sys) [Hz] 123159736 Frequency (temp) [Hz] 123159736 Apply Continue Cancel 5. Fat Suppression – Tick Mark NOT over Water Peak a. Magnify Peaks – Right Mouse in Spectral Display to Magnify Peaks i. Select Zoom x 5 – better visualization of small peaks Confirm Frequency Adjustment ? X [Max| 8,816 FWHM [Hz] 109.4 X orientation -> X orientation Zoom x1 Mag Zoom ×2 Zoom x5 Zoom x10 f [Hz] 123.157.118 Zoom x20 123.162.226 Coil Combined ADC - Frequency (sys) [Hz] 123159736 Frequency (temp) [Hz] 123159736 Apply Continue Cancel Unrestricted 0 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 3/5/2020 | HOOD05162003074494 Job Aid Effective Date: 08/3/2020 | HOOD05162003109312 Healthineers Page 2 of 5 Job Aid | Confirm Frequency Adjustments – Eline Job Aid Effective Date: 08/03/2020 | HOOD05162003109312 b. Left Mouse on Fat Peak i. Frequency (Temp)[Hz] > Add [220 Hz @ 1.5T] or [440 Hz @ 3T] to last 3 numbers  Example: 63679529+220 = 63679749 ii. Select Apply  Dotted Line displayed on top of Water Peak  New Frequency (sys) [Hz] displayed iii. Select Continue to start Scan Confirm Frequency Adjustment ? X Fat Peak (Left) Water Peak (Right) |Max| 8,816 FWHM [Hz] 109.4 Mag 123.159.225 123.160.247 Coil Combined ADC Frequency (sys) [Hz] 123159736 Frequency (temp) [Hz] 123159736 Appl Continue Cancel Unrestricted 0 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 3/5/2020 | HOOD05162003074494 Job Aid Effective Date: 08/3/2020 | HOOD05162003109312 Healthineers Page 3 of 5 Job Aid | Confirm Frequency Adjustments – Eline Job Aid Effective Date: 08/03/2020 | HOOD05162003109312 6. Breast Imaging – Silicone Suppression a. Frequency Differences – precessional frequency differences between Silicone & Water i. 1.5T = 300 Hz ii. 3T = 600 Hz b. Open Pulse Sequence i. Select System > Adjustments ii. Check Assume Silicone – only if silicone implants are confirmed. Helps system correctly identify the highest peak Routine Contrast Resolution Geometry System Physio Inline Sequence Coils Miscellaneous Adjustments Adjust Volume Tx/RX BO Shim mode Standard B1 Shim mode TrueForm Adjustment Tolerance Auto(None) Adjust with body coil Confirm freq. adjustment vi Only after freq. change Assume Dominant Fat Assume Silicone V c. Peaks i. Silicone Peak – Left of Fat Peak (e.g., only present if performing Breast Sili- cone Implant Imaging) c. Magnify Peaks – Right Mouse in Spectral Display to Magnify Peaks i. Select Zoom x 5 – better visualization of small peaks d. Left Mouse on Peak to Suppress (Water or Silicone) i. Select Apply  Dotted Line displayed on top of Peak you want suppressed (Water or Silicone)  New Frequency (sys) [Hz] displayed ii. Select Continue to start Scan 7. Assume Dominant Fat – use when breast tissue is predominately fat, such as non-dense breasts. Unrestricted 0 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 3/5/2020 | HOOD05162003074494 Job Aid Effective Date: 08/3/2020 | HOOD05162003109312 Healthineers Page 4 of 5 Job Aid | Confirm Frequency Adjustments – Eline Job Aid Effective Date: 08/03/2020 | HOOD05162003109312 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 Phone: +49 9131 84-0 siemens-healthineers.com Unrestricted 0 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2020 SIEMENS Master Template Effective Date: 3/5/2020 | HOOD05162003074494 Job Aid Effective Date: 08/3/2020 | HOOD05162003109312 Healthineers Page 5 of 5