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MR Cardiac Analysis Flow Job Aid

MR Cardiac Analysis Flow Job Aid

MR Cardiac Analysis Flow Job Aid syngo.via MR The MR Cardiac Flow step is used to determine flow and velocity parameters. 1. From the Patient Browser, load the appropriate data set into MR Cardiac Analysis Workflow:  If the examination has been correctly mapped, double click to load.  If manual mapping is required, right‐click the examination and select Assign Work‐ flow > MR Cardiac Analysis 2. The Cardiac Reading Step enables you to view functional, dynamic, tissue characterization and flow data using the common tools. 3. Select the MR Flow Quantification step MR Cardiac Analysis MR Cardiac Reading MR Cardiac Function O MR Flow Quantification Vessel Segmentation HOW 4. Perform Vessel Segmentation: Select an image with flow. a. Select > ROI1 to activate drawing an ROI MR Cardiac Analysis @ + MR Cardiac Reading MR Cardiac Function O MR Flow Quantification Vessel Segmentation Nudge O b. Select > one‐click vessel segmentation icon and click in the vessel or use one of the drawing tools to draw an ROI. Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2018 SIEMENS Master Template: EFF Date 22 Aug 17 | HOOD/HILS HOOD05162002647849 Healthineers Jobaid: Effective Date: 08/30/2019 | HOOD05162003027290 Job Aid/ MR Cardiac Analysis Flow Job Aid Effective Date: : 08/30/2019 | HOOD05162003027290 c. Use the vessel segmentation tools to refine the segmentation, if required. d. Scroll through the phases to check the segmentation e. Select > Copy Forward or Copy Backward icon Vessel Segmentation f. If you want to perform other flow evaluations in a slice position, click the ROI2‐ROI4 icons to enable the drawing of other contours. g. In the lower left segment, the results of the vessel segmentation are displayed as a time‐flow graph and a result ticker. i. The time‐flow graph displays the flow quantification results over time for the selected flow parameter. These are the following flow parameters to be displayed:  Flow: Product of mean velocity and surface area  Peak‐Velocity: Peak velocity in the ROI  Vel: Mean velocity in the ROI  Net Flow: Difference between forward and reverse flow  Area: Surface of the segmented vessel TA -315 014 Elart. Aon -174 219 ii. Select a flow parameter and select one or more ROI iii. Click and drag the start and end sliders to the desired position to adapt the time interval Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2018 Page 2 of 5 Job Aid/ MR Cardiac Analysis Flow Job Aid Effective Date: : 08/30/2019 | HOOD05162003027290 5. In the Evaluation Options step, you can optimize your evaluation results a. VENC Anti‐Aliasing: If the measure maximum flow velocity is lower than the actual flow velocity, there will be signal void areas in the vessel due to aliasing Evaluation Options Background Phase Adjustment Stationary tissue threshold man Apply ResetAN i. Select > VENC Anti‐Aliasing icon. Images are updated. The aliased pixel val‐ ues are corrected, and the results are updated ii. Adjust the background phase > Move the threshold slider to adapt the sta‐ tionary tissue mask iii. If necessary, select > Auto button to restore the default stationary tissue mask Evaluation Options Background Phase Adjustment Stabonary tissue threshold Apply iv. Select > Exclude Regions icon and draw a contour around the regions that should not be included into the stationary tissue mask v. Select > Delete Exclusion Regions icon if you want to delete and redraw the exclusion region vi. Select > Apply to correct the pixels for the phase contrast images 6. For MR Flow Quantification, the results of the current quantitative analysis are available in Findings details. a. Open the Findings details dialog box by clicking this icon on the upper right side the Findings Navigator. o Findings Navigator Name Value Source 10 b. Can define the heart rate of the patient. By default, the average heart rate is dis‐ played. An adaptation of the heart rate influences the average flow per minute. c. If you have performed the background phase adjustment, the check box in the Evaluation Option area is selected. Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2018 Page 3 of 5 Job Aid/ MR Cardiac Analysis Flow Job Aid Effective Date: : 08/30/2019 | HOOD05162003027290 d. Select > Invert Polarity icon to invert the velocity and flow values. e. Select > Create Finding to create a finding for the selected ROI (repeat step for each ROI created) Findings details Patient Information Evilaiton Optons Pabent Name: MR_Cardiac_Analysis Backamund Phase Adjudim Age 59 Years Start Height 66.93 Inches End 10237 IS Weight 171.41 LES Venc 120 CITVS Heart Rate › beats.min RO ROI2 ROI 3 Fiction ROI 1 H56.9 Create Finding How Velocity and Pressure Avg Flow Over Range 109 523 mis Average Velochy 16.000 m/s Avg Flow Per Minute 6391 Vmin Peak Velocity 08 145 cm/s Peak Flow 402.294 mi's Time lo Peak Velocity 176.5 ms Time to Peak Flow 1:41 2 Ms Peak Average Velocity 74 605 Cm/s Forward Volume 112 124 ml I me lo Peak Average Velocity 141 2 In Reverse Volume 0 ml Pressure Gradient (avmax2) 3.853 immig Nel Forward Volume 112 124 ml Area Regurg tant Fraction Average Area 6.447 cm2 Body Surface Area 1 895 m2 Minimal Area 6.447 Cm2 Avg Flows per Minute/BSA 3.373 kminime Maximal Area 5:447 cm2 Net Forward Volume/BSA 59.173 ml/m2 Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2018 Page 4 of 5 Job Aid/ MR Cardiac Analysis Flow Job Aid Effective Date: : 08/30/2019 | HOOD05162003027290 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 (herein‐ after 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 2018 ………………………………………………………… Siemens Healthineers Headquarters Siemens Healthcare GmbH Henkestr. 127 91052 Erlangen, Germany Telephone: +49 9131 84‐0 siemens.com/healthineers Published by Siemens Healthcare GmbH © Siemens Healthcare GmbH, 2018 Page 5 of 5