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How to Measure a Hounsfield Unit (HU) Using the mouse Pointer

How to Measure a Hounsfield Unit (HU) Using the mouse Pointer 

How to Measure a Hounsfield Unit (HU) Using the Mouse Pointer Computed Tomography 1. To identify the Mean/average HU value of a structure or other region of interest, place the mouse pointer over the center of the area in question. 2. Look in the lower right corner of the image. Note the letter M and the numeric value displayed immediately to its right. M 356C W 550 60 3. M is an abbreviation for Mean. The Mean value displayed is the average HU calculated by the system for the region directly beneath the mouse pointer. 4. TIP: A quick HU measurement in a major vessel within the scanned range can be a helpful QA tool for troubleshooting arterial scans. This value is an indicator for IV bolus quality and optimal timing/vascular enhancement for arterial phase imaging. SIEMENS siemens.com/healthineers Healthineers Job Aid | How to Measure a Hounsfield Unit (HU) Using the Mouse Pointer Effective Date: 8/16/2016 | Quality 360 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 ...... ........... Siemens Healthineers Headquarters Siemens Healthcare GmbH Henkestr. 127 91052 Erlangen, Germany Telephone: +49 9131 84-0 siemens.com/healthineers Siemens Healthineers Services Page 2 of 2

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