Flex 4D Spiral VB20 USA

Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Continue Untitled Scene Master Template HILS2218 | Effective Date: 2 Jan 2025 ? Flex 4D Spiral VB20 Online Training Welcome to the Flex 4D Spiral online training. This training introduces you to the Flex 4D Spiral feature and provides an overview of available scan modes, adjustable scan parameters, and their impact. Adjust scan parameters Understand reconstruction Know the Scan Length and its application Learn about the available scan modes 1 4 3 2 Welcome audf_flex4DSpiral_01.wav Welcome to the Flex 4D Spiral VB20 Online Training. This training introduces you to the Flex 4D Spiral feature and provides an overview of available scan modes, adjustable scan parameters, and their impact. ? Introduction to Flex 4D Spiral Flex 4D Spiral is a feature available for CT Imaging that enables the acquisition of dynamic data beyond the physical size of the detector width. To achieve this, the table moves continuously forward and backward during the spiral scan. The scan length can be adjusted within given limits. 4D imaging adds functional information to morphology. It is used for the assessment of the following clinical purposes: Neuro perfusion (stroke) Body perfusion (for example liver perfusion) Dynamic angio (for example cerebral vasculature) Introduction to Flex 4D Spiral audf_flex4DSpiral_02.wav Flex 4D Spiral is a feature available for CT Imaging that enables the acquisition of dynamic data beyond the physical size of the detector width. To achieve this, the table moves continuously forward and backward during the spiral scan. The scan length can be adjusted within given limits. 4D imaging adds functional information to morphology. It is used for the assessment of the following clinical purposes: Neuro perfusion (stroke) Body perfusion (for example liver perfusion) Dynamic angio (for example cerebral vasculature) Navigation Help Select the icon above to open the table of contents. Click Next to continue. Next Welcome Slide The timeline displays the slide progression. Slide the orange bar backwards to rewind the timeline. Click Next to continue. Next Tmeline Select the buttons to learn more about a topic. Be sure to review all topics before navigating to the next slide. Click Next to continue. Next Tab Arrow Slide Some images may have a magnifier icon. Select the image to see an enlarged view. Select it again to return to the normal view. Click Next to continue. Next Zoom Slide Some images have a magnifier icon in the bottom-left corner. Select these image to see an enlarged view of the image. Select the image again to return to the normal view. Select Submit to record your response. Click the X in the upper right corner to exit the navigation help. Assessment Slide Scan modes ? Scan modes Table with 3 columns and 6 rows Scan modes Scan protocols (factory) Flex 4D Spiral (Neuro) DynamicSpiralAdultHead Brain Perfusion Brain Perfusion Prolonged * DynamicSpiralAdultAngioHead Brain Dynamic CTA DynamicSpiralAdultAngioNeck Brain and Neck Dynamic CTA Flex 4D Spiral (Body) DynamicSpiralAdultBody Liver Perfusion DynamicSpiralAdultAngioBody Thorax Dynamic CTA Extremity Dynamic CTA Depending on your CT scanner, the following Flex 4D Spiral scan modes may be available: * Brain Perfusion Prolonged protocol includes a CT Neuro Perfusion scan with an extended default Exam Time (60 s) when needed. For further details, please contact your local application specialist. Scan modes audf_flex4DSpiral_03.wav Depending on your scanner, the Flex 4D Spiral scan modes in the table may be available. Scan parameters ? Adjustable scan parameters For a Flex 4D Spiral workflow, the following scan parameters can be adjusted: Scan Length Cycle Time (SOMATOM X and NAEOTOM Alpha only) Exam Time Number of cycles Pitch (depending on selected scan mode) Exposure Pattern ​The selected changes may influence other parameters that cannot be directly adjusted by the user, for example the number of cycles or the Cycle Time. On the following slides, you will learn more about the correlation between the scan parameters and available Scan Lengths for different CT systems. Adjustable scan parameters audf_flex4DSpiral_04.wav For a Flex 4D Spiral workflow, the following scan parameters can be adjusted: Scan Length, Cycle Time (SOMATOM X and NAEOTOM Alpha only); Exam Time, Number of cycles, Pitch (depending on selected scan mode), Exposure Pattern. ​The selected changes may influence other parameters that cannot be directly adjusted by the user, for example the number of cycles or the Cycle Time. On the following slides, you will learn more about the correlation between the scan parameters and available Scan Lengths for different CT systems. ? Scan Length The Scan Length is defined by the planned Scan Length in the topogram. For a Flex 4D Spiral examination, the maximum Scan Length is not determined by the physical detector width, but rather by the Pitch and the required temporal resolution, for example Cycle Time. Example: SOMATOM go.Top, Dynamic CTA Extremity, Cycle Time 3.00 s Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 3 rows Example 1 Example 2 Pitch 1.0 1.5 Max. Scan Length 261.9 mm 405.3 mm Scan Length audf_flex4DSpiral_05.wav The Scan Length is defined by the planned Scan Length in the topogram. For a Flex 4D Spiral examination, the maximum Scan Length is not determined by the physical detector width, but rather by the Pitch and the required temporal resolution, for example Cycle Time. Select the tabs to view examples for an adjusted Pitch. Example 2 Example 1 ? Scan Length – SOMATOM go. and Pro.Pulse The Scan Length function differs on different scanner families. We want to take a look at the Scan Length on SOMATOM go. and Pro.Pulse scanners first. Select the tab arrows to learn more. Max. Scan Length Adjust Scan Length Change Pitch Scan Length – SOMATOM go. and Pro.Pulse audf_flex4DSpiral_06.wav The Scan Length function differs on different scanner families. We want to take a look at the Scan Length on SOMATOM go. and Pro.Pulse scanners first. Select the tab arrows to learn more. ? Scan Length – SOMATOM X and NAEOTOM Alpha Now let’s take a look at the Scan Length function on SOMATOM X and NAEOTOM Alpha scanners. Select the tab arrows to learn more. Max. Scan Length Adjust Scan Length Change Pitch or Cycle Time Scan Length – SOMATOM X and NAEOTOM Alpha audf_flex4DSpiral_09.wav Now let’s take a look at the Scan Length function on SOMATOM X and NAEOTOM Alpha scanners. Select the tab arrows to learn more. ? Max. Scan Length* – SOMATOM go. and Pro.Pulse Table with 5 columns and 7 rows Scanner Head Body Angio Head / Neck Angio Body SOMATOM go.All 8.5 cm 11.5 cm SOMATOM go.Top 8.5 cm 18.5 cm 26.5 cm 40.5 cm SOMATOM go.Sim 8.0 cm SOMATOM go.Open Pro 8.0 cm 9.5 cm 25.5 cm SOMATOM Pro.Pulse 8.5 cm 18.5 cm 26.5 cm 40.5 cm SOMATOM Pro.Pulse** 8.5 cm 20.0 cm 28.0 cm 42.5 cm * The Scan Length numbers are given in steps of 0.5 cm to improve readability. The actual realized numbers at the CT system might therefore be slightly different. ** With 307 kg patient table and multi-purpose table. Max. scan length – SOMATOM go. and Pro.Pulse ? Adjust Scan Length - SOMATOM go. and Pro.Pulse You can adjust the Scan Length on the topogram, but be aware that the Cycle Time will be adapted as well. Example: SOMATOM go.Top Brain Perfusion protocol Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 3 rows Example 1 Example 2 Scan Length 83 mm 65 mm Cycles 1.47 s 1.00 s Scan length 1 - SOMATOM go. and Pro.Pulse audf_flex4DSpiral_7.wav You can adjust the Scan Length on the topogram, but be aware that the Cycle Time will be adapted as well. Select the tabs to view examples for an adjusted Scan Length. Example 2 Example 1 ? Change Pitch - SOMATOM go. and Pro.Pulse If the max./min. Scan Length of the default protocol doesn’t support your needs, you can change the Pitch value if the scan mode allows it. Example: SOMATOM go.Top Liver Perfusion protocol Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 3 rows Example 1 Example 2 Pitch 0.5 1.0 Max. Scan Length 102.0 mm 199.5 mm Scan length 2 - SOMATOM go. and Pro.Pulse audf_flex4DSpiral_08.wav If the maximum or minimum Scan Length of the default protocol doesn’t support your needs, you can change the Pitch value if the scan mode allows it. Select the tabs to view examples for an adjusted Pitch. Example 2 Example 1 ? Max. Scan Length* – SOMATOM X and NAEOTOM Alpha Table with 5 columns and 8 rows Scanner Head Body Angio Head / Neck Angio Body SOMATOM X.cite 10.0 cm 19.5 cm 28.5 cm 44.0 cm SOMATOM X.cite** 10.0 cm 22.0 cm 31.0 cm 48.0 cm SOMATOM X.ceed 11.0 cm 21.5 cm 31.0 cm 49.5 cm SOMATOM X.ceed** 11.0 cm 25.5 cm 36.0 cm 58.0 cm NAEOTOM Alpha.Peak** 12.0 cm 32.0 cm 48.0 cm 81.5 cm NAEOTOM Alpha.Pro** 11.0 cm 25.5 cm 36.0 cm 58.0 cm NAEOTOM Alpha.Prime** 12.0 cm 32.0 cm 48.0 cm 81.5 cm * The Scan Length numbers are given in steps of 0.5 cm to improve readability. The actual realized numbers at the CT system might therefore be slightly different. ** With 307 kg patient table and multi-purpose table. Max. scan length – SOMATOM X and NAEOTOM ? Adjust Scan Length - SOMATOM X and NAEOTOM Alpha You can adjust the Scan Length on the topogram. The Cycle Time will not be adapted. Example: NAEOTOM Alpha.Prime Brain Perfusion protocol Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 4 rows Example 1 Example 2 Pitch 0.5 0.5 Scan Length 80 mm 122 mm Cycle Time 1.5 s 1.5 s Scan length 1 - SOMATOM x and NAEOTOM audf_flex4DSpiral_10.wav You can adjust the Scan Length on the topogram. The Cycle Time will not be adapted. Select the tabs to view examples for an adjusted Scan Length. Example 2 Example 1 ? Change Pitch or Cycle Time - SOMATOM X and NAEOTOM Alpha If the max. Scan Length of the protocol doesn’t support your needs, you may increase the Pitch value or the Cycle Time. Example: NAEOTOM Alpha.Prime Liver Perfusion protocol Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 3 rows Example 1 Example 2 Cycle Time 1.5 s 1.8 s Max. Scan Length 122 mm 157 mm Scan length 2 - SOMATOM x and NAEOTOM audf_flex4DSpiral_11.wav If the maximum Scan Length of the protocol doesn’t support your needs, you may increase the Pitch value or the Cycle Time. Select the tabs to view examples for an adjusted Cycle Time. Example 2 Example 1 ? Cycle Time The Cycle Time defines the time interval between the acquisition time points of the central image slices for consecutive cycles. On SOMATOM go. and Pro.Pulse scanners, the Cycle Time is adjusted automatically when you change the Scan Length or Pitch. On SOMATOM X and NAEOTOM Alpha scanners, you can adjust the Cycle Time directly. It will not be adapted when changing the Scan Length or Pitch. Select the tab arrows to learn more about the Cycle Time on different scanners. Cycle Time - SOMATOM go. and Pro.Pulse Cycle Time - SOMATOM X and NAEOTOM Alpha Min. and max. Cycle Times - SOMATOM X and NAEOTOM Alpha Cycle Time audf_flex4DSpiral_12.wav The Cycle Time defines the time interval between the acquisition time points of the central image slices for consecutive cycles. On SOMATOM go. and Pro.Pulse scanners, the Cycle Time is adjusted automatically when you change the Scan Length or Pitch. On SOMATOM X and NAEOTOM Alpha scanners, you can adjust the Cycle Time directly. It will not be adapted when changing the Scan Length or Pitch. Select the tab arrows to learn more about the Cycle Time on different scanners. ? Example 1 Example 1 Example 2 Example 2 Exam Time The Exam Time is mainly the summation of the Cycle Time and can be adapted. Adjusting the Exam Time only and leaving all other parameters the same will lead to a changed number of cycles. Example: Brain Perfusion examination, Cycle Time 1.50 s, Pitch 0.5 Table with 3 columns and 3 rows Example 1 Example 2 Exam Time 46.32 23.82 Number of cycles 30 15 Exam Time audf_flex4DSpiral_16.wav The Exam Time is mainly the summation of the Cycle Time and can be adapted. Adjusting the Exam Time only and leaving all other parameters the same will lead to a changed number of cycles. Select the tabs to view examples for an adjusted Exam Time. Example 2 Example 1 ? Cycle Time – SOMATOM go. and Pro.Pulse As you already know, the Cycle Time is adjusted automatically when you change the Scan Length or Pitch on SOMATOM go. and Pro.Pulse scanners. Select the tabs to view examples for an adjusted Cycle Time. Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 5 rows Example 1 Example 2 Scan Length 150.0 mm 266.4 mm Pitch 1.00 1.00 Cycle Time 1.5 s 2.5 s Cycles 19 11 Cycle Time - SOMATOM go. and Pro.Pulse scanners audf_flex4DSpiral_13.wav As you already know, the Cycle Time is adjusted automatically when you change the Pitch and the Scan Length on SOMATOM go. and Pro.Pulse scanners. Select the tabs to view examples for an adjusted Cycle Time. Example 2 Example 1 ? Cycle Time - SOMATOM X and NAEOTOM Alpha As already mentioned, you can adjust the Cycle Time directly on SOMATOM X and NAEOTOM Alpha scanners. In VB20, you can configure the Cycle Time independently of the Scan Length. The default Cycle Time is the maximum supported Cycle Time (includes factory protocols as well as updated customized protocols). Cycle Time - SOMATOM X and NAEOTOM audf_flex4DSpiral_14.wav As already mentioned, you can adjust the Cycle Time directly on SOMATOM X and NAEOTOM Alpha scanners. In VB20, you can configure the Cycle Time independently of the scan length. The default Cycle Time is the maximum supported Cycle Time, which includes factory protocols as well as updated customized protocols. ? Min. and max. Cycle Times - SOMATOM X and NAEOTOM Alpha Table with 3 columns and 6 rows Basic Scan mode Min. Cycle Time Max. Cycle Time DynamicSpiralAdultHead 1.0 s 1.5 s * DynamicSpiralAdultAngioHead 1.5 s 2.5 s DynamicSpiralAdultAngioNeck 1.5 s 2.5 s DynamicSpiralAdultBody 1.4 s 1.8 s DynamicSpiralAdultAngioBody 2.0 s 3.0 s * Maximum Cycle Time on SOMATOM X.cite: 1.57 s You can see the supported minimal and maximal Cycle Times for each dynamic scan mode in the table on the right. The system will not automatically adapt the Cycle Time when you change the Scan Length. Instead, you can manually select a Cycle Time within the supported range. Min. and max. Cycle Times audf_flex4DSpiral_15.wav You can see the supported minimal and maximal Cycle Times for each dynamic scan mode in the table. The system will not automatically adapt the Cycle Time when you change the scan length. Instead, you can manually select a Cycle Time within the supported range. ? Example 1 Example 1 Example 2 Example 2 Table with 3 columns and 3 rows Example 1 Example 2 Cycle Time 1.0 s 1.5 s Number of cycles 10 7 Number of cycles The number of cycles depends on the Cycle Time and the Exam Time. The number of cycles can be changed by adjusting the Exam Time on all SOMATOM and NAEOTOM Alpha scanners. On SOMATOM X and NAEOTOM Alpha scanners, the number of cycles can also be changed by adjusting the Cycle Time. Number of cycles audf_flex4DSpiral_17.wav The number of cycles depends on the Cycle Time and the Exam Time. The number of cycles can be changed by adjusting the Exam Time on all SOMATOM and NAEOTOM Alpha scanners. On SOMATOM X and NAEOTOM Alpha scanners, the number of cycles can also be changed by adjusting the Cycle Time. Select the tabs to view examples for an adjusted Cycle Time. Example 2 Example 1 ? Pitch The Pitch is a dimensionless acquisition parameter in spiral computed tomography and describes the relation of patient table feed and beam collimation. For Flex 4D Spiral, it describes the relation for the maximum/constant patient table feed during the entire acquisition. Depending on the selected scan mode, the standard values for the Pitch can be, for example: The Pitch settings influence the Cycle Time and the maximum Scan Length. Table with 2 columns and 5 rows SOMATOM go.Top Brain Perfusion 0.5 Liver Perfusion 0.5 or 1.0 Dynamic CTA Head / Neck 1.0 Dynamic CTA Body 1.0 or 1.5 Table with 2 columns and 5 rows NAEOTOM Alpha.Prime Brain Perfusion 0.5 or 1.0 Liver Perfusion 0.5 or 1.0 Dynamic CTA Head / Neck 1.0 Dynamic CTA Body 1.0 or 1.5 Pitch audf_flex4DSpiral_18.wav The Pitch is a dimensionless acquisition parameter in spiral computed tomography and describes the relation of patient table feed and beam collimation. For Flex 4D Spiral, it describes the relation for the maximum/constant patient table feed during the entire acquisition. Depending on the selected scan mode, the standard values for the Pitch can be, for example: ? Exposure Pattern The Exposure Pattern defines which cycles of the entire scan are to be acquired (exposed) during the examination. In the Exposure Pattern list, you can see all available cycles for the entire scan. For each cycle, the absolute cycle start time and the relative cycle start time are displayed. The relative cycle start time is given in brackets. By selecting/deselecting the respective checkboxes, you can include or exclude a cycle from scanning. The Select All / Deselect All function is available starting with syngo CT VB20. Please note: Excluded cycles cannot be reconstructed. The first and the last cycle cannot be excluded from the Exposure Pattern. Exposure Pattern timeline Exposure Pattern audf_flex4DSpiral_19.wav The Exposure Pattern defines which cycles of the entire scan are to be acquired (exposed) during the examination. In the Exposure Pattern list, you can see all available cycles for the entire scan. For each cycle, the absolute cycle start time and the relative cycle start time are displayed. The relative cycle start time is given in brackets. By selecting/deselecting the respective checkboxes, you can include or exclude a cycle from scanning. The Select All / Deselect All function is available starting with syngo CT VB20. Please note: Excluded cycles cannot be reconstructed. The first and the last cycle cannot be excluded from the Exposure Pattern. ? Exposure Pattern - timeline In the timeline, a box inside the Exam Time indicates a cycle/scan. To differentiate between an included and excluded cycle/scan, the color saturation of an excluded cycle/scan is lower than of an included cycle/scan. Exposure Pattern timeline audf_flex4DSpiral_20.wav In the timeline, a box inside the Exam Time indicates a cycle or scan. To differentiate between an included and excluded cycle or scan, the color saturation of an excluded cycle/scan is lower than of an included cycle or scan. Reconstruction ? Reconstruction Images that have been acquired with Flex 4D Spiral can only be reconstructed fix axial. FAST Planning is available for Flex 4D Spiral. Reconstruction audf_flex4DSpiral_21.wav Images that have been acquired with Flex 4D Spiral can only be reconstructed fix axial. FAST Planning is available for Flex 4D Spiral. ? Reconstruction Pattern Please note: Cycles that have been excluded from the acquisition cannot be reconstructed. From the Reconstruction Pattern tab, you can deselect single cycles from the reconstruction by deselecting the respective checkboxes. You can deselect all cycles by clicking the Deselect All button. It is also possible to reconstruct thin slices from a single cycle depending on your clinical needs, for example arterial phase for vascular analysis or portal venous phase for liver analysis. The number of cycles available for reconstruction depends on the number of acquired cycles (Exposure Pattern). The Reconstruction Pattern is different than the Exposure Pattern: changing it has no impact on the scan dose. Reconstruction Pattern audf_flex4DSpiral_22.wav The number of cycles available for reconstruction depends on the number of acquired cycles (Exposure Pattern). The Reconstruction pattern is different than the Exposure Pattern: changing it has no impact on the scan dose. Please note: Cycles that have been excluded from the acquisition cannot be reconstructed. From the Reconstruction Pattern tab, you can deselect single cycles from the reconstruction by deselecting the respective checkboxes. It is also possible to reconstruct thin slices from a single cycle depending on your clinical needs, for example arterial phase for vascular analysis or portovenous phase for liver analysis. Untitled Scene ? Course Review Congratulations. You have completed the Flex 4D Spiral course. Select the numbered buttons below to review the material before proceeding to the final assessment. Reconstruction Scan Length Adjustable scan parameters Scan modes 1 1 2 2 2 3 3 3 4 4 4 Course Review audf_flex4DSpiral_23.wav Congratulations. You have completed the Flex 4D Spiral course. Select the numbered buttons below to review the material before proceeding to the final assessment. Reconstruction Images that have been acquired with Flex 4D Spiral can only be reconstructed fix axial. FAST Planning is available for Flex 4D Spiral. The number of cycles available for reconstruction depends on the number of acquired cycles (Exposure Pattern). The Reconstruction Pattern is different than the Exposure Pattern: changing it has no impact on the scan dose. Please note: Cycles that have been excluded from the acquisition cannot be reconstructed. From the Reconstruction Pattern tab, you can deselect single cycles from the reconstruction by deselecting the respective checkboxes. You can deselect all cycles by clicking the Deselect All button. It is also possible to reconstruct thin slices from a single cycle depending on your clinical needs, for example arterial phase for vascular analysis or portovenous phase for liver analysis. Scan Length You can adjust the Scan Length on the topogram. The Cycle Time will not be adapted. If the max. Scan Length of the protocol doesn’t support your needs, you may increase the Pitch value or the Cycle Time. SOMATOM X and NAEOTOM Alpha You can adjust the Scan Length on the topogram, but be aware that the Cycle Time will be adapted as well. If the max./min. Scan Length of the default protocol doesn’t support your needs, you can change the Pitch value if the scan mode allows it. SOMATOM go. and Pro.Pulse The Scan Length is defined by the planned Scan Length in the topogram. For a Flex 4D Spiral examination, the maximum Scan Length is not determined by the physical detector width, but rather by the Pitch and the required temporal resolution, for example Cycle Time. Adjustable scan parameters For a Flex 4D Spiral workflow, the following scan parameters can be adjusted: Cycle Time (SOMATOM X and NAEOTOM Alpha only): The Cycle Time defines the time interval between the acquisition time points of the central image slices for consecutive cycles. Exam Time: The Exam Time is the summation of the Cycle Time and can be adapted. Adjusting the Exam Time only and leaving all other parameters the same will lead to a changed number of cycles. Number of cycles: The number of cycles depends on the Cycle Time and the Exam Time. Pitch (depending on selected scan mode): The Pitch is a dimensionless acquisition parameter in spiral computed tomography and describes the relation of patient table feed and beam collimation. Exposure Pattern: The Exposure Pattern defines which cycles of the entire scan are to be acquired (exposed) during the examination. ​The selected changes may influence other parameters that cannot be directly adjusted by the user, for example the number of cycles or the Cycle Time. Scan modes Depending on your scanner, the following Flex 4D Spiral scan modes may be available: Table with 3 columns and 6 rows Scan modes Scan protocols (factory) Flex 4D Spiral (Neuro) DynamicSpiralAdultHead Brain Perfusion Brain Perfusion Prolonged DynamicSpiralAdultAngioHead Brain Dynamic CTA DynamicSpiralAdultAngioNeck Brain and Neck Dynamic CTA Flex 4D Spiral (Body) DynamicSpiralAdultBody Liver Perfusion DynamicSpiralAdultAngioBody Thorax Dynamic CTA Extremity Dynamic CTA Disclaimer 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. Please 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. Unrestricted | Published by Siemens Healthineers AG | © Siemens Healthineers AG, 2025 Siemens Healthineers HQ | Siemens Healthineers AG Siemensstr. 3 91301 Forchheim Germany Phone: +49 9191 18-0 siemens-healthineers.com ? Customer Facing Disclaimer *Delete the disclaimer not used Disclaimer Assessment Start ? This assessment will test your retention of the presented content. A passing score of 80% or higher is required. You will have 3 attempts to complete the course and earn your certificate . Assessment questions must be answered completely to receive full credit. Partial credit will not be given for assessment questions that require multiple answers. Assessment Select the best answer. ? SOMATOM X and NAEOTOM Alpha only SOMATOM X and NAEOTOM Alpha only SOMATOM X and NAEOTOM Alpha only No scanners Question 1 of 5 On which scanners can you adjust the Cycle Time? SOMATOM go. and Pro.Pulse family only All scanners Multiple Choice ? Select two (2) answers. Question 2 of 5 What determines the maximum Scan Length? Pitch The required temporal resolution (e.g., Cycle Time) The physical detector width Exposure Pattern Multiple Answer Select the correct designated area, then select Submit below. Question 3 of 5 Where can you deselect all cycles from the reconstruction? Hotspot Select the best answer. ? The Scan Length changes The number of cycles changes Question 4 of 5 What happens if you adjust the Exam Time only and leave all other parameters the same? The Pitch changes The Exposure Pattern changes Multiple Choice ? Select two (2) answers. Question 5 of 5 What does the number of cycles depend on? Cycle Time Exam Time Scan Length Pitch Multiple Answer Retry Assessment Results %Quiz1.ScorePercent%% %Quiz1.PassPercent%% Continue YOUR SCORE: PASSING SCORE: Assessment Results You have exceeded your number of assessment attempts. Exit You did not pass the course. Select Retry to continue. Congratulations. You passed the course. Exit To access your Certificate of Completion, select the Certificates tab from the learning activity overview page. You can also access the certificate from your PEPconnect transcript. ? You have completed the Flex 4D Spiral VB20 online training. Completion details, certificates tab Question Bank 1 Flex 4D Spiral VB20 - USA - QR700029260 Siemens Healthineers Hier finden Sie ein paar nützliche Links und Dokumente: 1.1 Welcome 1.2 Introduction to Flex 4D Spiral 3.1 Scan modes 4 Scan parameters 4.1 Adjustable scan parameters 4.2 Scan Length 4.3 Scan Length – SOMATOM go. and Pro.Pulse 4.4 Scan Length – SOMATOM X and NAEOTOM Alpha 4.11 Cycle Time 4.12 Exam Time 4.16 Number of cycles 4.17 Pitch 4.18 Exposure Pattern 5.1 Reconstruction 5.2 Reconstruction Pattern 6.1 Course Review 6.2 Disclaimer 6.3 Assessment