CTA HEAD Perfusion and NECK AqONE without and with IV

Cta Head Perfusion And Neck Aqone Without And With Iv-Free PDF

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Helical Head CTA is not needed if perfusion acquisition shows no motion. Proceed to E Delay Helical Head,Helical Head CTA,Contrast IV 110 ml. Saline 40 ml,Injection Rate Contrast 5 ml sec,Saline 3ml sec. Focus Large,DFOV 240 0 S,ALG RECON CTA Brain,Acquisition thickness 0 5 x 64. Rotation Time 0 5,Recon slice thickness 0 5 mm,Recon slice spacing 0 3 mm. BT Bolus track at level of hyoid, Manual start on blush of contrast in carotid artery.
Head and Neck Reconstruction Approximate DFOV,Focus Large. DFOV 280 0 M,ALG RECON CTA Neck,Acquisition thickness 0 5 x 64. Rotation time 0 5,mA Sure Exp Standard,Recon slice thickness 1 0 mm. Recon slice spacing 0 8 mm,E Helical Head with Contrast. Delay 3 minutes,Focus Large,DFOV 240 0 S,ALG RECON Head Brain HCT.
Acquisition thickness 0 5 x 64,Rotation time 0 5,Recon slice thickness 5 0 mm. Recon slice spacing 5 0 mm,Revised May 2 2014, REFORMATION MIP Generated from C Axial Helical CTA if scanned. Head CTA MIP,Algorithm Soft Tissue,Thickness 10 mm. Spacing 5 mm,Range Skull base to vertex,Plane Axial. Algorithm Soft Tissue,Thickness 10 mm,Spacing 5 mm.
Range Cover brain,Plane Coronal,Algorithm Soft Tissue. Thickness 10 mm,Spacing 5 mm,Range Cover brain,Plane Sagittal. Neck CTA MIP,Algorithm Soft Tissue,Thickness 10 mm. Spacing 5 mm,Range Cover vasculature,Plane Coronal. Algorithm Soft Tissue,Thickness 10 mm,Spacing 5 mm.
Range Cover vasculature,Plane Oblique,Revised May 2 2014. STACK SUBTRACTED STACK MIP GENERATION,1 Brain Stack Volume Generation. Transfer to PACS and PACS TS, Open the Brain Time Stack Tool in Autoview S Tools Tab 2. From the perfusion series select the peak arterial volume and the volume just prior. Use the Time Intensity Graph on the workstation to determine the volume with peak arterial. filling Use just two volume sets for stack generation. These volumes can have NO motion,Start the Stack tool. o A new Stacked Volume will be saved to the patient File. 2 Subtraction Volume Generation,Programmed to auto transfer to PACS and PACS TS.
Open the Brain Subtraction Tool Autoview S Tools Tab 2. Select the Stacked Volume as the Contrast Volume, Select the first volume from the Perfusion series as the non contrast volume mask for. subtraction, If there is motion on the first volume select the next available volume with NO motion and NO. Click Start The New Stacked Subtracted Volume will be saved to the patient file. 3 Stack and Subtracted Stack MIP Generation,Transfer to PACS and PACS TS. REFORMATION MIPs Generated from Stack and Subtracted Stack Head. Algorithm Soft Tissue,Thickness 10 mm,Spacing 5 mm. Range Skull base to vertex,Plane Axial,Algorithm Soft Tissue.
Thickness 10 mm,Spacing 5 mm,Range Cover brain,Plane Coronal. Algorithm Soft Tissue,Thickness 10 mm,Spacing 5 mm. Range Cover brain,Plane Sagittal,Revised May 2 2014. Workstation Perfusion Map Generation, In the directory page open the patient series list Select the perfusion folder. Left click on Load Volumes,From the Gallery page Select 4D Perfusion.
The artery and vein selection are automatic Check that these are correct. Modify if necessary,o Artery Should be earliest filling artery. o Vein Superior Sagital Sinus or Transverse Sinus are good. o The curves should be smooth and the artery and veins well separated. Snapshot the graph,Change Screen to 6 Up collage format. Change left upper axial image to MIP MIP thickness should be 5mm. Optimize WW WL for proper visualization of vessels Correct WW WL will visually. differentiate vessel from bone structures,Optimize Map WW WL. o The color scale should be distributed evenly for each map. o Each map should contain some red and some blue,See example below. Right Click to open the MAP Generation Menu,Select Batch MPR Collage.
o All 5 Maps and the CT image will be saved as a volume collage. In the report page export saved images and collage. Revised May 2 2014,Console Perfusion Map Generation. Click Clinical Tab,Click 4D Perfusion,Load 4D volume sets. The Set Tab will be highlighted,Set Artery Indicator. Click artery icon set artery Basilar artery if,Set SSS Indicator. Click SSS icon set SSS, Graph should demonstrate sharp peak and smooth valley.
Click Analyze, Message will appear Now Generating Functional Maps. this should take about 6 minutes,Click Settings,Check that settings are proper. See settings on next page,Wait for Auto Export to become available. Click Auto Export,Axial MIP Generation for Collage. Select volume set that represents early maximum arterial flow and minimal venous return. Axial MIPS Perfusion 5 0 x 5 0, Start location for axial MIPS 80 and end 80 for a total of 32 images.
Do not change the name on these The collage builder only recognizes the set label. These are automatically combined with the perfusion images in the PACS TS for the anatomical. reference collage,Revised May 2 2014, Auto SSS IMPORTANT Make sure that this is not checked. Analysis Analysis Vessel,Flow Matrix Elimination,SVD 256 On. O 128 O Off,Volume Number for mask 1 8 1,Color Scale. Rainbow CBP,Auto Color Scale,CBF CBV MTT TTP,Color Scale Range. CBF ml 100cc min CBV ml 100cc MTT s TTP s DLY s,Upper 60 0 4 0 12 0 25 0 10 0.
Lower 0 0 0 0 0 0 0 0 0 0,Default Image,O CT Image. Auto Export,plane maps Thickness,Axial CBF TTP 5 0. Sagital CBV DLY,Coronal MTT,Auto Transfer,TS PACS TS PACS. CTA HEAD Perfusion and NECK AqONE without and with IV Contrast IMG 12136 C o All 5 Maps and the CT image will be saved as a volume collage In the report page export saved images and collage Bad Good Revised May 2 2014 Console Perfusion Map Generation Click Clinical Tab Click 4D Perfusion Load 4D volume sets The Set Tab will be highlighted Set Artery Indicator Click artery icon set

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