Radiation Dose Reduction in Temporal Bone CT with Iterative Reconstruction Technique
نویسندگان
چکیده
منابع مشابه
Radiation dose reduction in temporal bone CT with iterative reconstruction technique.
BACKGROUND AND PURPOSE Iterative reconstruction of CT images is characterized by reduced image noise and may allow reduction in radiation exposure. We investigated the influence of an IRT technique on image quality and radiation dose savings when applied to temporal bone CT. MATERIALS AND METHODS Based on the typical image quality level of adult subjects using routine radiation dose and FBP, ...
متن کاملPATIENT SAFETY Radiation Dose Reduction in Temporal Bone CT with Iterative Reconstruction Technique
MATERIALS AND METHODS: Based on the typical image quality level of adult subjects using routine radiation dose and FBP, an exsomatized cadaveric head with CNR characteristics closest to the level of clinical subjects was identified. Cadaver acquisitions were performed at multiple levels of tube current exposure. Reconstructions were performed using FBP and IRT (iDose), with multiple iDose level...
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PURPOSE To assess image quality and radiation dose reduction with hybrid iterative reconstruction of pediatric chest and abdominal computed tomographic (CT) data compared with conventional filtered back projection (FBP). MATERIALS AND METHODS A total of 234 patients (median age, 12 years; age range, 6 weeks to 18 years) underwent chest and abdominal CT in this institutional review board-appro...
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BACKGROUND AND PURPOSE To safeguard patient health, there is great interest in CT radiation-dose reduction. The purpose of this study was to evaluate the impact of an iterative-reconstruction algorithm, ASIR, on image-quality measures in reduced-dose head CT scans for adult patients. MATERIALS AND METHODS Using a 64-section scanner, we analyzed 100 reduced-dose adult head CT scans at 6 predef...
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PURPOSE To evaluate dose reduction and image quality of abdominopelvic computed tomography (CT) reconstructed with model-based iterative reconstruction (MBIR) compared to adaptive statistical iterative reconstruction (ASIR). MATERIALS AND METHODS In this prospective study, 85 patients underwent referential-, low-, and ultralow-dose unenhanced abdominopelvic CT. Images were reconstructed with ...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2012
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a2941