Validation of a method for estimating peak skin dose from CT-guided procedures
| Autor: | A. Kyle Jones, Meghan E. Kisiel, X. John Rong, Alda L. Tam |
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| Rok vydání: | 2021 |
| Předmět: |
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Materials science Tomography Scanners X-Ray Computed Radiation Dosage CT dosimetry ablation 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Medical Imaging Humans Radiology Nuclear Medicine and imaging Radiochromic film Ct dosimetry Radiometry Instrumentation Radiation business.industry Phantoms Imaging Helical scan Limits of agreement CT‐guided intervention Skin dose 030220 oncology & carcinogenesis Ct scanners peak skin dose Nuclear medicine business Tomography X-Ray Computed CTDIvol |
| Zdroj: | Journal of Applied Clinical Medical Physics |
| ISSN: | 1526-9914 |
| Popis: | A method for estimating peak skin dose (PSD) from CTDIvol has been published but not validated. The objective of this study was to validate this method during CT‐guided ablation procedures. Radiochromic film was calibrated and used to measure PSD. Sixty‐eight patients were enrolled in this study, and measured PSD were collected for 46 procedures. CTDIvol stratified by axial and helical scanning was used to calculate an estimate of PSD using the method [1.2 × CTDIvol(helical) + 0.6 × CTDIvol(axial)], and both calculated PSD and total CTDIvol were compared to measured PSD using paired t‐tests on the log‐transformed data and Bland‐Altman analysis. Calculated PSD were significantly different from measured PSD (P |
| Databáze: | OpenAIRE |
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