Transcription of TORNIER BLUEPRINT
1 SCAN PROTOCOL Planning + PSI 2 BLUEPRINT 3D Planning Software Scan Protocol preparationScanning instructionsImage instructionsScanning parametersTechnical instructions333456 Contents3 BLUEPRINT 3D Planning Software Scan Protocol ProtocolIntroductionThis document describes the guidelines for a Shoulder CT-Scan to be processed by BLUEPRINT 3D Planning Software. Following this scanning protocol will optimize the likelihood of successful scan reconstruction in BLUEPRINT 3D Planning : Please contact the helpline if you require further Preparation Verify that metal is not present within the scanned portion of the operative side (Figure 1)Note: Pacemakers, dental and cervical hardware can cause artifact if too close to the GlenoHumeral joint.
2 If artifact too intense, do not scan. Do NOT use contrast material Place the patient supine on the scanner table, Humerus along the trunk (Figure 2)Note: Position must be craniocaudal oriented (head first) and iso-centered, with the hand in a neutral position. It is strongly recommended to place a sponge or a small pillow between humerus and trunkScanning instructions No gantry tilt Limit the field of view to the desired/operative shoulder Avoid incomplete projections of soft-tissue wrap by having all shoulder soft-tissue within the field of view (causes pseudo-metal artifact) (Figure 3) It is strongly recommended to perform a full scan of the scapula (Figure 4)Note: Scan must include several slices about the AC joint and several slices (around 1 cm) below the inferior angle.
3 All slices must have the same field of view and the same slice spacing DO NOT use auto-mA settingFigure 1: Artifacts generatedby metallic implantsFigure 2: Position of thepatient in the machineFigure 3: Example of incomplete projectionsFigure 4: Full scan of the scapula4 BLUEPRINT 3D Planning Software Scan Protocol instructions Use only axial images, no other reconstructions or reformations in different planes (sagittal or coronal) The DICOM file format is defined in the Transfer Syntax (0002, 0010) Tag field, the supported formats are the following:UncompressedTransfer Syntax VR Little VR Little Explicit VR Big EndianLossless compressedTransfer Syntax Lossless, Non-Hierarchical (Process 14) Lossless, Hierarchical, First-Order 2000 Image Compression (Lossless Only)
4 Lossy compressedTransfer Syntax 2000 Image Compression5 BLUEPRINT 3D Planning Software Scan Protocol parameters Recommended parametersParameterRecommendedModality CTKernel / AlgorithmBone or Bone+kVp120 or 140 kVpmAManual 240 mADO NOT use auto-mASlice mmImage Thickness- Detector Coverage should be maximum- Helical Thickness mm or mm- Pitch or less- Rotation time 1 sec or lessExposure time1000 msNote: Using the manual-mA setting of 240 mA will provide compatible images. Not doing so will produce images that are incompatible with BLUEPRINT 3D Planning Software. Display Field Of View (DFOV)ParameterRecommendedDFOV (axial plane) (Figure 5)Please include the entire scapula25 cm or no more 32 cmDFOV (frontal plane) (Figure 6)Please include the entire scapulaMore than 10 cmMatrix size512 x 512 Figure 5: DFOV (axial plane)Figure 6: DFOV (frontal plane)6 BLUEPRINT 3D Planning Software Scan Protocol Instructions GE HEALTHCAREIn order to define the recommended mA, please follow the next steps:1.
5 Click on mA button2. Set manual-mA to 240 mA and dose reduction 0%3. Set the desired slice thickness for helical CT by clicking on Slice Thickness: - Set the detector coverage to maximum depending on each machine - Set the helical thickness to mm or no more than mm - Set the pitch to or less - Set the rotation time to sec SIEMENSThis example works for Somatom Sensation 64 but the user interface is the same in most of Siemens systems. You have two main tabs to configure the scan protocol on Siemens machines:1. On the Reconstruction tab: - Set the Kernel/Algorithm to Bone 70s, sharp or very sharp - Set the window on Bone - Set the reconstruction increment to mm or less2.
6 On the Scan tab: - Set the quality ref mAs to 300 mAs - Set the kVp to 120 or 140 kVp - Set the rotation time to sec - Set the slice thickness to mm or less - Set the pitch to or less OTHER SCANNER BRANDSFor any other brand of CT scan machine please refer to the standard recommendations in pages 4, 5 and 3D Planning Software Scan Protocol Cherry RoadMemphis, TN 38117800 238 7117901 867 Nesbitt Avenue SouthBloomington, MN 55437888 867 6437952 426 surgical procedures and techniques are the responsibility of the medical professional. This material is furnished for information purposes only. Each surgeon must evaluate the appropriateness of the material based on his or her personal medical training and experience.
7 Prior to use of any TORNIER implant system, the surgeon should refer to the product package insert for complete warnings, precautions, indications, contraindications, and adverse effects. Package inserts are also available by contacting Wright. Contact information can be found in this document and the package insert. and denote Trademarks and Registered Trademarks of Wright Medical Group or its affiliates. 2016 Wright Medical Group or its affiliates. All Rights Rev B ECN 161103 05-Aug-2016 BLUEPRINT 3D PLANNING SOFTWARE HELPLINEE mail: Phone.