Comparison of Tin Filter-Based Spectral Shaping CT and Low-Dose Protocol for Detection of Urinary Calculi
| Autor: | Vahid Yaghmai, Amirhossein Mozaffary, Donald Kim, Tugce Agirlar Trabzonlu |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Image quality chemistry.chemical_element Radiation Dosage 030218 nuclear medicine & medical imaging Spectral shaping 03 medical and health sciences 0302 clinical medicine Radiation Protection Medicine Animals Humans Radiology Nuclear Medicine and imaging Aged Retrospective Studies Sheep business.industry Phantoms Imaging Low dose General Medicine Middle Aged equipment and supplies chemistry Filter (video) Tin 030220 oncology & carcinogenesis Dose reduction Female Urinary Calculi business Nuclear medicine Tomography X-Ray Computed |
| Zdroj: | AJR. American journal of roentgenology. 212(4) |
| ISSN: | 1546-3141 |
| Popis: | The purpose of this study was to assess the performance of tin filter-based spectral shaping CT compared with routine low-dose CT for detection of urolithiasis.Unenhanced third-generation dual-source CT scans of 129 consecutively registered patients were retrospectively reviewed: 43 patients underwent CT for detection of renal stones with tin filtration (Sn150 kV); 43 patients underwent a routine low-dose CT protocol at 100 kV; and 43 patients underwent a routine CT protocol with automated tube potential selection (110-120 kV). Image quality was evaluated subjectively and objectively. Volume CT dose index (CTDICT with tin filtration resulted in 28% and 66% reduction in CTDIUsing spectral shaping with tin filtration can substantially reduce radiation dose compared with routine standard- and low-dose abdominal CT for urinary stone disease. |
| Databáze: | OpenAIRE |
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