Using the xRecon Activity for xSPECT Reconstruction

Using the xRecon Activity for xSPECT Reconstruction Description: This Step by Step will guide the user in the use of the xRecon activity that is used to reconstruct xSPECT studies. For customers that are upgrading to VB20 software, this activity will take the place of Auto Recon. You will see two xRecon activities in an xSPECT workflow. The first is reconstruction for the image registration. The second xRecon activity is for the final reconstructed series. The xRecon activity can reconstruct up to 5 beds. Settings Tab 1. The Settings tab is the main page used to view reconstruction 1) The Parameters View is shown. Pull down menu allows selection of the parameters setting. 2) To switch to the Image view, click the Show Image button. 3) Reconstruction will happen automatically after acquisition, but if the user makes any changes to the parameters, the Start Recon button initiates the reconstruction process. 4) This area displays the raw data inputs and the reconstructions. Settings Results Advanced Reconstruction 1 Bone Scan 05/13/2014 SCAC % SKELETAL Reconstruction Method Flash3D Scatter Correction on Attenuation Correction On Parameter Setting . Parameters View 51 Fast Fast Standard Best User-Defined 2. Toggle between "Image" and "Parameters" Views 3. Initiates the Recon Process Start Recon Show Image Raw Data Inputs WB Bone Scan-Scan 5, 12:35:57 PM Body 2.5 B31 eFoV. 12:47:54 PM WB Bone Scan-Scan 4, 12:25:15 PM WB Bone Scan-Scan 3, 12:14:46 PM WB Bone Scan-Scan 2, 12:04:21 PM WB Bone Scan-Scan 1, 11:53:56 AM 4. Raw Data Inputs and Reconstructions SIEMENS Healthineers www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 1 of 7 2. When the Start Recon is initiated, a progress bar will appear above the Parameters Display Settings Results Advanced Reconstruction 1 Reconstruction 2 Bone Scan 05/13/2014 SCAC Bone Scan 05/13/2014 SCAC 5. Progress bar appears when % reconstruction is SKELETAL SKELETAL initiated. Reconstruction Method Flash3D Reconstruction Method Flash3D Scatter Correction On Scatter Correction Attenuation Correction On On Attenuation Correction On Parameter Setting Parameter Setting 51 Fast Standard O Start Recon Show Image Raw Data Inputs WB Bone Scan-Scan 5, 12:35:57 PM Body 2.5 B31 eFoV. 12:47:54 PM WB Bone Scan-Scan 4, 12:25:15 PM WB Bone Scan-Scan 3, 12:14:46 PM WB Bone Scan-Scan 2, 12:04:21 PM WB Bone Scan-Scan 1, 11:53:56 AM 3. When all the slices are reconstructed, the image is available to view by clicking the Show Image button. Settings Results Advanced Reconstruction1 Reconstruction 2 Bone Scan 05/13/2014 SCAC Bone Scan 05/13/2014 SCAC % % 50, HU % 50 HU AF 36 19 831s Compressed : 358.9 Compressed 0 Start Recon Edit Parameters Edit Parameters Raw Data Inputs WB Bone Scan-Scan 5, 12:35:57 PM Body 2.5 B31 eFoV, 12:47:54 PM WB Bone Scan-Scan 4, 12:25:15 PM WB Bone Scan-Scan 3, 12:14:46 PM WB Bone Scan-Scan 2, 12:04:21 PM WB Bone Scan-Scan 1, 11:53:56 AM SIEMENS Healthineers www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 2 of 7 4. If you need to edit the dose information, the top left corner of the Settings Tab allows you to edit the dose information as well as accessing the cross calibration. Click the Edit Dose Info button and enter the correct parameters. Click OK. Settings Results Edit Dose Corrected Dose 370.000MBQ 2/17/2015 12:00AM Bon Information Edt Dose Into ... Wh Radiopharmaceutical Isotope: Pharmaceutical: Rece 99m Technetium Atte Initial Assay. Date: Time: Sca 12/ 8/2014 12:00:00 AM Para Dose: 370 MBq US Dose calibrator identifier Injection Date and Time: 12/ 8/2014 Y 12:00:00 AM Residual Dose: Dose: 0 MBq 12/ 8/2014 12:00:00 AM Dose calibrator identifier Effective Dose Dose: 370.000 MBq 12/8/2014 12:00:00 AM Anterior Start Recon OK Cancel Results Tab 5. The Results Tab allows the user to review the reconstructed images produced in the xRecon activity. 1) Toggle allows scrolling through the reconstruction jobs 2) Display select allows you to view Recon Tomo, Zone Map and Mu Maps. Settings Results Advanced Bone Scan 05/13/2014 SCAC Transverse Bone Scan ICGAS-24126-5mm - AC 1, 08/08/2016 Coronal lenibes Body 2.5 831 eFov, 05/13/201 50 HU Apply Mask Display. · Recon Tomo 2. Display Mu Map Selector 33 P. 813.8 3315 2. 324 4 P. 3.9.6 1. Scroll through Job4 0 jobs Healthineers ** www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 3 of 7 Advanced Tab 6. The Advanced Tab houses the reconstruction parameters and settings. a. The parameter settings of Fast, Standard and Best have predefined parameters that are not available to be changed. b. If you want to create your own settings, select the parameters setting User Defined, and the rest of the parameter settings will become available. Settings Results Advanced Prepare for Registration Enable 2nd Reconstruction Job Advanced Options - Reconstruction Job 1 Advanced Options - Reconstruction Job 2 Exam Type Skeletal Exam Type Skeletal Reconstruction Method Flash3D Reconstruction Method Flash3D Zone Preset None Zone Preset None Parameter Setting Fast Parameter Setting User-Defined Reconstruction Parameters Reconstruction Parameters Iterations: 25 Subsets: 2 Iterations: 30 Subsets: 2 Filtering 3D Gaussian FWHM: 10 00 mm Filtering 3D Gaussian FWHM: 10.00 mm Apply Scatter Correction Apply Scatter Correction Scatter Estimation Scatter Estimation Apply To: Photopeak 1 Energy Windows Apply To: Photopeak 1 Energy Windows ... Window Weights Automatic Window Weights Automatic Lower Window Weight 0.50 Lower Window Weight 0.50 Filtering 2D Gaussian FWHM: 20.00 mm Filtering 2D Gaussian FWHM: 20.00 mm Apply Attenuation Correction Apply Attenuation Correction Attenuation Coefficients Determination Attenuation Coefficients Determination Apply To: Photopeak 1 Apply To. Photopeak 1 Energy Settings Energy Settings · Isotope Energy value 99m Technetium · Isotope Energy value 99m Technetium User Defined User Defined Beam Model Beam Model · Narrow · Narrow Filtering 3D Gaussian FWHM: 0.00 mm Filtering 3D Gaussian FWHM: 0.00 mm SIEMENS Healthineers .. www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 4 of 7 7. Selecting the Exam Type. The exam type should be selected based on the type of study being performed. Each advanced method defines the proceeding option (i.e. Exam Type -> Reconstruction Method -> Zone Preset -> Parameter Setting). All exam types decay correct to the injection time, with the exception of WholeBody-Theranostic which decay corrects to acquisition start time. Organ Protocol Exam Type Skeletal Diagnostic Skeletal Whole Body Diagnostic Whole Body Whole Body Theranostic Whole Body - Theranostic Brain Diagnostic Brain Endocrine Diagnostic Endocrine Pulmonary Diagnostic Pulmonary Gastrointestinal Diagnostic Gastrointestinal Renal Diagnostic Renal General Diagnostic General Cardiac - not Diagnostic not shown shown 8. Selecting the Reconstruction Method The two selections that are available for this are Flash 3D and xSPECT Reconstruction. 9. Selecting the Zone Preset The Zone Present will only be available when the Skeletal exam type is selected. Available Zone Presets for Skeletal Exam: a. Skeletal – to be used with xSPECT Bone imaging b. Water Phantom – to be used for phantom studies c. Phantom with Contrast – to be used for phantom studies SIEMENS Healthineers .. www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 5 of 7 10. Selecting the Parameter Setting The first xRecon activity in a workflow will have the parameters Ultra-Fast or User Defined. The second xRecon activity in a workflow will have four parameters: Fast, Standard, Best, or User Defined. The Parameter Settings selections have predetermined reconstruction parameters based on the total counts, reconstruction method, and parameter setting. See the charts below for the assignments. xSPECT and xSPECT Bone Iterations and Subset Assignments Total Counts <0.25M 20.25M 20.5M 23M 26M 212M Best SS 1 1 1 1 1 it 12 24 24 60 72 Normal ss 1 1 1 1 1 it 10 16 36 48 48 Fast ss 1 1 2 2 2 it 8 12 24 24 24 UltraFast SS 1 1 1 2 3 Not Recommended (Image Reg) it 6 12 12 12 Flash 3D Iterations and Subset Assignments Total Counts <0.25M 20.25M 20.5M 23M 26M 212M Best SS 1 1 4 12 it 50 70 30 18 15 Normal SS 1 2 4 8 12 it 50 30 25 15 12 Fast SS 1 2 6 10 16 it 30 25 15 10 8 UltraFast SS 1 2 12 20 Not Recommended (Image Reg) it 25 20 9 10 8 5 SIEMENS Healthineers .. www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 6 of 7 User Defined Parameter Setting Enables the following: Reconstruction Parameters · Scatter Estimation · Window Weights · Filtering · Attenuation Coefficients Determination · Energy Settings · Beam Model · Filtering · 11. When reconstruction is complete, use MI Applications (e.soft), Volumetric Analysis, TrueD or syngo.via to view and analyze images. SIEMENS Healthineers .. www.usa.siemens.com/healthcare HRT# HOOD05162002643349 Effective Date: TODAYS DATE Page 7 of 7