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500107 Rev 04SNRCalculations-Channel 2Large1. Select the reconstructed image from Channel 2, and display an elliptical ROIwith a total pixel area similar to that in the example below. Refer to PhilipsGyroscan Instruction Manual for ROI help.2. Position ROI in the center of the phantom bottle, as shown below.3. Bring up Statistics for ROI, right-mouse select over the ROI number (arbitrarynumber next to the ROI), left-mouse select on Statistics from the drop-downbox, and select Statistics again from the drop box.4. Record the Signal Mean value.5. Move ROI to background noise, as shown below.6. Record noise standard deviation.7. Divide the signal mean by the noise standard deviation for the phantom bottle.8. Record this SNR value for future reference.9. Repeat above procedure for channels 3 and 4 as shown on the following pages.14Invivo CorporationModel QSC
500107 Rev 04SNRCalculations-Channel 3Large1. Select reconstructed image from Channel 3, and display an elliptical ROI witha total pixel area similar to that in the example below. Refer to PhilipsGyroscan Instruction Manual for ROI help.2. Position ROI in the center of the phantom bottle as shown below.3. Bring up Statistics for ROI: right-mouse select over the ROI number (arbitrarynumber next to the ROI), left-mouse select on Statistics from the drop-down box,and select Statistics from drop box again.4. Record the Signal Mean value.5. Move ROI to background noise, as shown below.6. Record noise standard deviation.7. Divide the signal mean by the noise standard deviation for the phantom bottle.8. Record this SNR value for future reference.9. Repeat the above procedure for channel 4 as shown on following pages.Invivo CorporationModel QSC15
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Page 3 and 4: 500107 Rev 04IntroductionThis manua
Page 5 and 6: Table of Contents500107 Rev 04Intro
Page 7 and 8: 500107 Rev 04Assure that the patien
Page 9 and 10: 500107 Rev 04Routing theCableThe ca
Page 11 and 12: 500107 Rev 04Place the phantom bott
Page 13: 500107 Rev 04Reconstruct SNR CHECK
Page 17 and 18: 500107 Rev 04Setup -SmallShoulderCo
Page 19 and 20: 500107 Rev 04Reconstruct SNR CHECK
Page 21 and 22: 500107 Rev 04SNRCalculations-Channe
Page 23 and 24: Chapter 4 - Scanning500107 Rev 04Ch
Page 25 and 26: 500107 Rev 04Invivo CorporationMode
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