Biograph™ PET/CT Scanner Quality Control Online Training

Upon successful completion of this course you will be able to: Learn about the sources and phantoms used in QC Perform CT daily system maintenance procedures Perform the additional maintenance procedures when necessary Understand the PET and CT Daily Quality Control (QC) Congratulations. You have completed the Biograph PET/CT Scanner Quality Control online training. Listed below are the key points that have been presented.  Take time to review the material before you proceed to the final quiz. Download and print a copy of the Course Review. PET Quality Control Overview The PET QC schedule is subdivided into daily, weekly, and quarterly procedures. Daily Quality Control Restarting the Computers Positioning of the Phantom Phantoms & Sources: To perform Quality Control on your Biograph Scanner you have to use phantoms and sources. Unless you have purchased the phantomless option QualityGuard, a phantom is only required for quarterly quality control measures.  These phantoms or sources contain Germanium-68 which has a long half-life. ​Germanium-68 3D Uniform Phantom Germanium-68 Rod Sources CT Quality Assurance Phantom ​ CT Checkup & CT Scanner Calibration: Perform CT Checkup to warm up the tube and calibrate the system. This will ensure optimum CT image quality. As a part of the checkup procedure, the CT calibration occurs automatically and can be performed after the system startup.   CT Quality Check:  The CT Quality Check is a procedure that is performed on a daily basis to calibrate the CT system. It calibrates the CT value of water in Hounsfield units and measures image pixel noise and tube voltages. The use of the CT Quality Assurance phantom is required for this procedure. ​ PET Quality Check:  Daily normalization based on a phantom scan Computation and verification of the PET calibration factor or ECF Normalization results Sinogram display System Quality report  Manual or automatic selection for performing quality control procedures Partial PET detector setup or full PET detector setup with Time Alignment  Clearing process and Archiving Patient Data To avoid the potential degradation of the overall system performance, the clearing process must be performed continuously.  Clearing the Scheduler Clearing the Network, Local & Film Queues Additional maintenance procedures Scanner Cross-Calibration System Cleanup & Shutdown Startup Process To perform Quality Control on your Biograph scanner, you have to use phantoms and sources for the daily and weekly PET setup if your system is not configured with QualityGuard (option).  For all Biograph systems, regardless of the configuration, phantoms are required for the quarterly PET quality control procedures. These phantoms or sources contain Germanium-68 which has a long half-life.   Click the tab below to learn more about the phantoms and sources that are used in your quality control procedures.   Learn more about the phantoms and sources Learn more about the phantoms and sources Slide NumberText BlocksCalloutsAudio ScriptImage File1Germanium-68 3D Uniform Phantom Features: Sealed cylindrical source 20 cm in diameter 27 cm long Up to 2.5 mCi activity Half-life 270.8 days Used for Biograph mCTTM and Biograph Horizon TM   Function: System acceptance testing to obtain sensitivity and image PET detector normalization ​​Setup ​​​Time alignment Test scans The Germanium-68 3D uniform phantom is a sealed cylindrical source, 20cm in diameter x 27-cm long with up to 2.5 millicuries of activity. The half-life of this source is 270.8 days. It is used for all Biograph mCT and Biograph Horizon systems, with or without TrueV. It is used for system acceptance testing to obtain sensitivity and image uniformity, for performing PET detector normalization, setup, and time alignment, as well as for test scans. 2Germanium-68 3D Uniform Phantom - Biograph Vision Features: Sealed cylindrical source 21 cm in diameter 30 cm long Up to 3.0 mCi activity Half-life 270.8 days Used with the Biograph Vision TM   Function: System acceptance testing  PET detector normalization ​​Setup ​​​Time alignment Test scans The Germanium-68 3D uniform phantom used with the Biograph Vision is a sealed cylindrical source, 21cm in diameter x 30cm long with up to 3.0 millicuries of activity. The half-life of this source is 270.8 days. It is used for system acceptance testing to obtain sensitivity and image uniformity, for performing PET detector normalization, setup, and time alignment, as well as for test scans. 3Germanium-68 Rod Sources The PET Twin Rod Phantom is used to perform Field of View (FOV) offset calibration. The phantom requires 2 PET Setup Rods, LS-LA. Each source: 8 inches in length 1 to 1.5 mCi of activity The PET Twin Rod Phantom is used to perform Field of View offset calibration. It contains two Germanium-68 rod sources. Each rod source is about 8 inches in length and approximately 1 to 1.5 millicuries of activity.4CT Quality Assurance Phantom Features: non-radioactive contains water and wire Function: used to perform Daily CT Quality Check The CT Quality Assurance Phantom is used to perform the daily CT Quality Check. It is a non-radioactive source that contains water and wire.   To avoid the potential degradation of the overall system performance, the clearing process must be performed continuously. The clearing process is subdivided into two parts: Clearing the Scheduler Clearing the Network, Local & Film Queues It is important that you routinely monitor the disk space available on the system computers and remove any unneeded patient data on a daily basis. Click the tab below to learn more about the clearing process that is used in your quality control procedures.   Learn more about the Clearing process Learn more about the Clearing process Slide NumberText BlocksCalloutsAudio ScriptImage File1Clearing the Scheduler When the scheduler contains too many completed or idle jobs, the overall system performance may be degraded. To avoid this situation, you should clear the Scheduler at the end of each work day. This procedure is especially important if you are using a HIS/RIS system for scheduling. To clear the Scheduler, access the Patient Browser.  Click on the Scheduler icon. Select Edit > Clear Scheduler. When the scheduler contains too many completed or idle jobs, the overall system performance may be degraded. To avoid this situation, you should clear the Scheduler at the end of each work day. This procedure is especially important if you are using a HIS/RIS system for scheduling. To clear the Scheduler, access the Patient Browser and click on the Scheduler icon. Select Edit and Clear Schedule to clear the Scheduler.2Clearing Network, Local & Film Queues  When the system queues contain too many completed and failed jobs, overall system performance can be degraded. To avoid this situation, you should clear all queues of completed and failed jobs daily. a ) Network Queues To clear the network queue, as shown below on the Network Queues tab. Select Patient to access the Patient Browser. Select Transfer. Click on Network Job Status. Click Clear to clear all jobs. When the system queues contain too many completed and failed jobs, overall system performance can be degraded. To avoid this situation, you should clear all queues of completed and failed jobs daily. To clear the network queue, as shown below on the Network Queues tab, first access the Patient Browser.  Next, select Transfer, then Network Job Status. Lastly, click Clear to clear all jobs.3b) Local Queues Select Patient >> Browser to access the Patient Browser  Select Transfer Click on Local Job Status Click Clear to clear all jobs. c) Film Queues Select Patient >> Film Task Status in any task card or in the Patient Browser    (Patient >> Browser), or Click the Film Task Status button in the Filming task card or in the Film Preview window. Click Clear to clear all jobs.  To clear the local queue, first access the Patient Browser. Next, select Transfer and select Local Job Status. Lastly, click Clear to clear all jobs. To clear film queues, first select Patient > Film Task Status in any syngo task card. Another way is to click the Film Status Icon button in the Filming task card or Film Preview window. Click CLEAR to clear all jobs. After you have completed the restart of the computers, the CT Checkup window will appear on the syngo MI Acquisition Workplace. Perform CT Checkup to warm up the tube and calibrate the system. This will ensure optimum CT image quality. As a part of the checkup procedure, the CT calibration occurs automatically and can be performed after the system startup. You should repeat the CT calibration after the first 60 minutes of a full patient load and within an hour prior to any patient scan.  Click the tab below to learn more about the CT Checkup and the CT Scanner Calibration.   Learn more about the CT Checkup and Calibration Learn more about the CT Checkup and Calibration Learn more about the CT Checkup and CalibrationTitleTextStep 1Tab TitleTextCT CheckupTo perform the CT Checkup, make sure the Patient Handling System or PHS is retracted. Click the Checkup button in the window.  CalibrationClick on the Setup button in the main menu and select Calibration.  Step 2Tab TitleTextCT Checkup Press the START button on the Control Box when prompted. The checkup procedure will start and when successfully completed the system displays “Automatic Checkup Completed” and the dialog will automatically close. Retract the PHS and click the Checkup button. Calibration Press the START button on the Control Box when prompted.​  The checkup procedure will start and when successfully completed the system displays “Automatic Checkup Completed” and the dialog will automatically close. In order to maintain your scanner, get optimum image quality and accurate calculations, quality control procedures will need to be performed regularly. The PET QC schedule is divided into daily, weekly, and quarterly procedures. Click the tab below to view the PET QC schedule.   Learn more about the PET QC schedule Learn more about the PET QC schedule ACTION PERFORMANCE DATE Restart computers Daily at startup CT Checkup Daily at startup CT Quality Daily at startup or after extended power off PET Daily Quality Check (with phantom) Daily at startup (prior to scanning patients), after extended power off, or after remote access service procedures. Note: Perform a PET Full Setup and Time Alignment if the daily PET Quality Check fails. Archive patient data Daily QualityGuard Daily, performed overnight PET Partial Setup   Weekly or automatically after 7 days PET Full Setup and Time Alignment Quarterly or automatically after 90 days CT Constancy  Monthly On a daily basis, verification should be run to ensure the uniformity corrections are still valid for the system.  The Daily Quality Control process is subdivided into the following steps: Restarting the Computers Positioning of the Phantom Performing the CT Checkup and the CT Calibration  Performing the CT Quality Check Performing the PET Quality Check Evaluation of the results Clearing and archiving ​Click the tab below to learn more about the Daily Quality Control.   Learn more about how to restart the computers Learn more about how to restart the computers Checklist TitleChecklist TypeChecklist ContentStep 1HTMLThe first step in daily maintenance is to restart the system computers. With this procedure you ensure that computer connectivity is reestablished. Exit all examinations and applications and ensure that the PET and CT gantries are powered on. On the syngo MI Workplace menu (if applicable) click on the System button in the upper left area of the window and select End.     ​The End Session window will open. Select Shutdown System and confirm the restart by clicking YES. Step 2HTMLThe next step is to go to the syngo MI Acquisition Workplace and select System in the upper left area of the window.  To open the End Session Window select End as on the MI Workplace. After selecting Restart System in the End Session Window click Yes to confirm the restart. Step 3HTMLWhen the Checkup window appears on the syngo MI Acquisition Workplace, turn on power to the syngo MI Workplace. The system is ready when the disk icons appear in the lower right corner of the syngo MI Acquisition Workplace and show space remaining on each. You may now proceed with the Biograph daily control procedures.   In addition to the daily maintenance procedures for your Biograph, there are some other system maintenance procedures that you can perform to keep your system running optimally and keep your quantifications accurate.  The additional system maintenance contains the following processes: Scanner Cross-Calibration System Cleanup Shutdown and Start Process Click the tab below to learn more about the additional maintenance procedures.   Learn more about the additional maintenance proced Learn more about the additional maintenance procedures Slide NumberText BlocksCalloutsAudio ScriptImage File1Scanner Cross-Calibration Cross-calibrate the scanner to the dose calibrator to increase accuracy of Quantification. Calibration to be performed: At scanner installation New dose calibrator installation ​Replacement of Ge68 PET phantoms ​3 step procedure: Run the PET Quality Check with Partial Setup. Calculate the Cross-Calibration Correction Factor (CCCF) using a water phantom filled with a known amount of F18 and the Biograph PET•CT Cross-Calibration Worksheet. Normalize and calibrate the scanner to verify a successful cross-calibration of the scanner to the dose calibrator. The scanner cross-calibration procedure is performed to cross-calibrate the scanner to the dose calibrator that is used in the department. This procedure is recommended to make your quantification more accurate. You should perform the scanner cross-calibration when the scanner is installed, when you get a new dose calibrator or when the Germanium-68 PET phantoms are replaced. The procedure is divided into three parts. 2System Cleanup & Shutdown Checks and defragments the syngo Acquisition Workplace hard disks Should be performed once a week ​Can take up to 2-3 hours to complete   Exit all examinations and applications. Remove all media from the drives. Shut down syngo MI Workplace (if available). System >> End >> Shutdown. Select Yes to confirm. Shut down the syngo MI Acquisition Workplace. a) Select System >> Run >> System Cleanup and   Shutdown.​ b) Click Start on System Cleanup Window. c) When complete, the CT Scanner, syngo Acquisition Workplace, IRS, ACS and PRS will shut down.  It is recommended that you run the System Cleanup and Shutdown tool to check and defragment the syngo Acquisition Workplace hard disks once a week. System performance may be decreased if the disks are not regularly defragmented. This procedure can take up to 2-3 hours to complete, so it’s recommended to be done in the evening upon leaving your department. To perform this procedure, first exit all examinations and applications and remove all media from the drive of the syngo Acquisition Workplace and the syngo MI Workplace computers. Next, shut down the syngo MI Workplace computer (if present) by selecting System End and then Shutdown. Click Yes to confirm. On the syngo MI Acquisition Workplace console, select System and click on Run. Select System Cleanup and Shutdown. A System Cleanup and Shutdown window is displayed. Click START to begin the cleanup and shutdown. When the cleanup is complete, the CT scanner, syngo Acquisition Workplace, IRS, ACS and PRS will shut down. 3Startup Process   Wait 5 minutes after the System Cleanup and Shutdown Process before beginning the Startup Process.   Press the System On button on the Control Box to power up.   The system is ready for scanning when the disk icons in the lower right corner of the syngo Acquisition Workplace screen are visible. After turning off the scanner, wait 5 minutes before proceeding to the next step. Turn the power to the CT scanner and computers on by pressing the System On button on the rear of the control box. The system is ready for scanning when the disk icons in the lower right corner of the syngo Acquisition Workplace screen are visible. The PET Quality Check is a maintenance procedure performed daily prior to scanning patients ton ormalize variations in PET detector responses. The results produced determine the readiness of the system for scanning or whether service is needed. The procedure includes: Daily normalization based on a phantom scan, Computation and verification of the PET calibration factor or ECF, Normalization results, Sinogram display, System quality report,  Manual or automatic selection for performing quality control procedures, Partial PET detector setup or full PET detector setup with Time Alignment. ​Click the tabs below to learn more about the PET Quality Check.   Learn more about the PET Quality Check Performance Learn more about the PET Quality Check Performance Slide NumberText BlocksCalloutsAudio ScriptImage File1PET Quality Check - Automatic You can configure your system to automatically perform the PET Quality Check (QC) one of two ways. QualityGuard* offers an automatic, phantomless QC option while Auto QC with Phantom offers an automized, traditional approach to QC. For the Auto QC with Phantom option, enter your phantom information in the Phantom tab of the PET QC Configuration window. Here you have the option to enter a Cross-Calibration factor to correct the normalization  phantom dose. The default value is 1.0. * Please note: QualityGuard is an option and is not available on all systems.You can configure your system to automatically perform the PET Quality Check (QC) one of two ways. QualityGuard* offers an automatic, phantomless QC option while Auto QC with Phantom offers an automized, traditional approach to QC. For the Auto QC with Phantom option, enter your phantom information in the Phantom tab of the PET QC Configuration window. Here you have the option to enter a Cross-Calibration factor to correct the normalization phantom dose. The default value is 1.0. * Please note: QualityGuard is an option and is not available on all systems.2PET Quality Check - Automatic To configure automatic QC Select Options > Configuration from the main menu. Select PET QC Configuration in the Configuration window.   Select either the QualityGuard* or the Auto QC with Phantom radiobox in the Automatic QC tab.   Select which days of the week you prefer the system to perform these automatic quality checks.   Enter the start time in the Auto QC Start field.   The Auto QC End field automatically populates. * Please note: QualityGuard is an option and is not available on all systems.To configure automatic QC Select Options and select Configuration from the main menu. Click on PET QC Configuration in the Configuration window. Select either the QualityGuard* or the Auto QC with Phantom radiobox in the Automatic QC tab. Select which days of the week you prefer the system to perform these automatic quality checks. Enter the start time in the Auto QC Start field. ​ The Auto QC End field automatically populates. * Please note: QualityGuard is an option and is not available on all systems.3PET Quality Check - Manual Select Setup > PET Quality Check from the main menu to display the PET Quality Check window.   Click Start to commence PET QC. – or –   Under the Configure tab, select one of the following options from the PET Quality Check window, if you wish to perform PET QC with partial setup, full setup, and/or time alignment. Partial Setup - performs quality check, normalization, and partial detector setup Full Setup - performs quality check, normalization, full detector setup, and time alignment Time Alignment – performs quality check, normalization, and time alignment   Click Start To manually run the PET Quality Check each day select PET Quality Check from the main menu to display the PET Quality Check window. You can now select start or if you wish, you can perform the PET Quality check to include partial setup, full setup, or time alignment. You should perform the Partial Setup weekly for optimal PET performance. If Partial Setup has not been performed within seven days, the system will automatically perform partial setup during the next PET Quality Check. If Full Setup has not been performed in the last 90 days, it will automatically run whether or not it is selected in the PET Quality Check window. 4PET Quality Check on the Biograph Horizon Select Options > PET Quality Check from the main menu to display the PET Quality Check window. Click Start to commence PET QC. – or – Under the Configure tab, select one of the following options from the PET Quality Check window if you wish to perform PET QC with partial setup, full setup, and/or time alignment. Partial Setup - performs quality check, normalization, and partial detector setup Full Setup - performs quality check, normalization, full detector setup, and time alignment Time Alignment – performs quality check, normalization, and time alignment Click Start      To run the PET Quality Check on the Biograph Horizon, select Options and PET Quality Check from the main menu to display the PET Quality Check window. Under the Configure tab, you can now select start or if you wish you can perform the PET Quality check to include partial setup, full setup, or time alignment. As with other Biograph systems, you have the option to enter days and time to run QC automatically. You should perform the Partial Setup weekly for optimal PET performance. If Partial Setup has not been performed within seven days, the system will automatically perform partial setup during the next PET Quality Check. If Full Setup has not been performed in the last 90 days, it will automatically run whether or not it is selected in the PET Quality Check window. Learn more about the PET Quality Check Results Learn more about the PET Quality Check Results Slide NumberText BlocksCalloutsAudio ScriptImage File1PET Quality Check Results When the PET Quality Check procedure is complete, the results display in the PET Quality Check Results window. You can select the following options to view the results of your PET Quality Check. View Sinogram - Click to display the normalization sinogram in the Sinogram Viewer. You should visually check the sinogram before scanning patients. View/Print Report – Allows you to view and print the System Quality Report, which contains the detailed results of the PET Quality Check. ECF (View)Trend - Click to display the ECF trend graph. Plane Efficiency - Click to display the plane efficiency profile. When the PET Quality Check procedure is complete, the results display in the PET Quality Check Results window. You can select the following options to view the results of your PET Quality Check. View Sinogram - Click to display the normalization sinogram in the Sinogram Viewer. You should visually check the sinogram before scanning patients. View/Print Report – Allows you to view and print the System Quality Report, which contains the detailed results of the PET Quality Check. ECF (View)Trend - Click to display the ECF trend graph. Plane Efficiency - Click to display the plane efficiency profile.2PET Quality Check Results - View Sinogram  (1) Detector Information shows the DEA numbers and block numbers of the currently selected detector pair. (2) Plane Display shows the currently selected plane. (3) Fansum Display shows all planes with green and yellow indicators marking the physical location of the currently selected detector pair. (4) Plane Numbers are displayed on the left and right edges of the window (number of columns and rows starting at 0). To use the Sinogram Viewer: Use the vertical scroll bar, up and down arrows, or Page Up and Page Down keys to control which plane is displayed (first plane at top). Click in the Plane Display to activate cross-hairs. Drag the cross-hairs, and the corresponding detector indicators are displayed in the Fansum Display. The sinogram viewer is subdivided into the following areas: the Detector Information shows the DEA numbers and block numbers of the currently selected detector pair. The Plane Display shows the currently selected plane. The Fansum Display shows all planes with green and yellow indicators marking the physical location of the currently selected detector pair. The Plane Numbers are displayed on the left and right edges of the window. The sinogram viewer is a helpful tool that allows you to evaluate the QC sinogram. To use the sinogram viewer, scroll up or down to display which plane you would like to see. You can click in the plane display to activate the cross-hairs. In addition, you can drag the cross-hairs and the corresponding detector indicators are displayed in the Fansum. 3PET Quality Check Results - View/Print Report  Displayed in a web browser Select the File/Print button to print the report. The system automatically generates and saves a PDF of the System Quality Report in H:\SiteData\DailyQC every time the system runs a PET Quality Check procedure. The System Quality Report contains detailed results of the PET Quality Check. The report is displayed in a web browser. Select File/Print to print the report. The System Quality Report is automatically saved in a file, every time the PET Quality Check procedure is run. 4PET Quality Check Results - ECF (View) Trend Examine the Computed ECF value. If the ECF value calculated during normalization is within the typical range for your system type, the system quality result is PASS. If the ECF value is out of range, the system quality result is FAIL. If the PET Quality Check fails, you do not have the option to save the normalization or phantom position.  ​Click the Cancel button to close the PET Quality Check dialog box.  Check the phantom placement. Repeat the PET Quality Check with a Full Setup. If the PET QC fails again for a second time, run the PET Full System Setup. If the problem persists, contact your Siemens Healthineers Service representative. If the PET Quality Check is successful, click Save & Close to save the normalization and phantom scan position. If you choose not to save a successful normalization click Cancel.   Examine the Computed ECF value. If the ECF value calculated during normalization is within the typical range for your system type, the system quality result is PASS. If the ECF value is out of range, the system quality result is FAIL. If the PET Quality Check fails, you do not have the option to save the normalization or phantom position. ​Click the Cancel button to close the PET Quality Check dialog box. Check the phantom placement and repeat the PET Quality Check with a Full Setup. If the PET QC fails again for a second time, run the PET Full System Setup. If the problem persists, contact your Siemens Healthineers Service representative.5PET Quality Check Results - Post Process Click the Post process button to reprocess the data if there has been an interruption in processing the Quality Check.Click the Post Process button to restart the system if there has been an interruption in processing the Quality Check. Learn more about Positioning the Uniform Phantom Learn more about Positioning the Uniform Phantom Slide NumberText BlocksCalloutsAudio ScriptImage File1Alignment Procedure Remove the patient head holder, if attached.   Slide the L-shaped phantom bracket into the receptacle at the end of the pallet nearest the gantry (the same receptacle used for the head holder), and screw the bracket down tight.    Attach the semi-circular phantom adapter securely into the bracket.    Slide the PET uniform phantom into the phantom adaptor.    Align the phantom in the CT field of view using the positioning lasers. To position the Uniform Phantom for the daily PET Quality Check, first remove the patient head holder if it is attached to the patient table. Next, slide the L-shaped phantom bracket into the receptacle at the end of the pallet nearest the gantry or the same receptacle used for the head holder, and screw the bracket down tight. Next, attach the semi-circular phantom adapter securely to the bracket. Lastly, slide the PET uniform phantom into the phantom adapter. You should align the phantom in the CT field of view using the positioning lasers. The CT Quality Check is a procedure that is performed on a daily basis to calibrate the CT system. It calibrates the CT value of water in Hounsfield units and measures image pixel noise and tube voltages. The use of the CT Quality Assurance phantom is required for this procedure. Click the tabs below to learn more about how to position a phantom and CT Quality Checkup.   Learn more about Positioning the Phantom Learn more about Positioning the Phantom Slide NumberText BlocksCalloutsAudio ScriptImage File1 Raise table to QC height.   Remove the patient head holder, if attached.   Slide the L-shaped phantom bracket into the receptacle at the end of the pallet and screw the bracket down tight.   Attach the QA phantom to the phantom bracket.   Turn the laser light marker on.   Move the table forward to align with inner laser. The etchings on the QA phantom should be aligned with the inner laser.   When the phantom is completely aligned, run the quality test. CalloutsWater phantomReference markingWire and ball phantomSlice thickness phantomPatient tablePhantom holder bracketTo position CT Quality Assurance phantom, raise the table to your predefined height for QC. Next, remove the patient head holder if it is attached to the table. Slide the L-shaped phantom bracket into the receptacle at the end of the pallet and screw the bracket down tight. Then attach the QA phantom securely to the phantom bracket. Turn the laser light marker on. Move the table forward until the etchings on the QA phantom are aligned with the inner lasers. This may require some height adjustment. Learn more about Performing the CT Quality Check Learn more about Performing the CT Quality Check Checklist TitleChecklist TypeChecklist ContentStep 1HTMLAfter the phantom is positioned select Setup from the menu bar and click Quality.  The Quality Daily dialog screen appears. Click the OK button to initiate the scan. The system will select the Quality Assurance patient, and positions the table such that the water phantom is in the scan plane.  Step 2HTMLYou will then be prompted to press the Start button on the Control Box. The position of the phantom set is checked and displayed. The first measurement is then started automatically.   After the first measurement, a CT image of the water phantom is displayed in the active segment. The second measurement is started automatically and an image is displayed with evaluations for ROI, mean value of CT value, and standard deviation. Each of these measurements is repeated automatically for each tube voltage. All of the images are stored temporarily in the Quality Assurance Patient and in the Report files. Click OK to terminate. 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. Note: Some functions shown in this material are optional and might not be part of your system. The information in this material contains general technical descriptions of specifications and options as well as standard and optional features that do not always have to be present in individual cases. Certain products, product related claims or functionalities described in the material (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. Quality Guard is optional and not available on all systems. Currently it is not available in all countries on Vision and Horizon, and its future availability cannot be guaranteed. Copyright © Siemens Healthcare GmbH, 2019 Welcome to the BiographTM PET/CT Scanner Quality Control online training. This online training provides you with a general overview of the Quality Control procedures required for your Biograph scanner. The topics covered in this module will include:  the sources and phantoms used for Quality Control ​the daily system maintenance procedures  ​the phantomless PET Quality Control QualityGuard (option) additional maintenance procedures This online training supports the Biograph Vision TM, Biograph Horizon TM and Biograph mCTTM .