On October 17th we began training on the new scanner. We are going on our 4th week of using this new scanner and we are very pleased to announce we have seen great things already. It is a much faster scanner and we have moved from 32 slices per rotation to 128 slices per rotation. It comes with wonderful software that allows us to scan with a lower radiation dose and reconstruct images into very high-quality pictures. The dose reduction is a great asset to our community. A quick study has shown the following have had a significant reduction in radiation dose measured in DLP: (Dose length product (DLP) measured in mGy*cm is a measure of CT tube radiation output/exposure. It is related to volume CT dose index (CTDIvol), but CTDIvol represents the dose through a slice of an appropriate phantom. DLP accounts for the length of radiation output along the z-axis (the long axis of the patient).)
Average GE Head CT dose | Average Siemens Head Dose | Average GE Abdomen Dose | Average Siemens Abdomen Dose | Average GE PE Study Dose | Average Siemens PE Study Dose |
1353 DLP | 607 DLP | 670 DLP | 399 DLP | 586 DLP | 312 DLP |
Reduction of | 55% | Reduction of | 40% | Reduction of | 47% |
Average Pediatric Head GE | Our one Pediatric Head Siemens | Limited data on Pediatric CT’s | More to come. |
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820 DLP | 108 DLP |
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Reduction of | 87% |
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