Comparison of CT Dose Reduction Algorithms in a Porcine Model
نویسندگان
چکیده
منابع مشابه
Iterative reconstruction algorithms for dose reduction in Micro-CT
Aims In preclinical setting, micro-CT is used to provide anatomical information of small animals (e.g. mice), and can be used in conjunction with functional imaging modalities, which provide information on biological processes in tissues. The combination of micro-CT with functional imaging provides localization of the investigated process, i.e. physiology or disease, within the animal and furth...
متن کاملOptimization of Parameters in 16-slice CT-scan Protocols for Reduction of the Absorbed Dose
Introduction In computed tomography (CT) technology, an optimal radiation dose can be achieved via changing radiation parameters such as mA, pitch factor, rotation time and tube voltage (kVp) for diagnostic images. Materials and Methods In this study, the brain, abdomen, and thorax scaning was performed using Toshiba 16-slice scannerand standard AAPM and CTDI phantoms. AAPM phantom was used for...
متن کاملImage Optimization and reduction of radiation dose in CT of the paranasal sinuses
Introduction: Since demand for computed tomography (CT) examinations is growing, patients are exposed more frequently to ionizing radiation. To reduce the dose delivered to patients in each scan, CT technologists can change the image acquisition parameters. However, this reduces image quality. Present study aimed to optimize and reduce radiation dose in a CT of the paranasal si...
متن کاملThyroid dose and dose reduction method from CT scan of head and neck
Introduction: Computed tomography (CT) consists of 11% of all imaging methods, but accounts for approximately 67% of radiation exposure due to diagnostic cases. More than one-third of all CT scans are done in the head and neck area. The thyroid gland is irradiated during CT head and neck. According to studies, this gland has the highest levels of radiation-induced cancer, and i...
متن کاملAssessment of dose reduction and influence of gantry rotation time in CT abdomen examinations
Background: Worldwide the computed tomography (CT) scanning is recognized as a high radiation dose modality. This article aimed to estimate the radiation dose reduction and radiogenic risks for adult patients undertaking abdominal CT examinations. Materials and Methods: A total of 128 patients were studied using 2, 4, 16 and 64 slice CT scanners. The patients were divided into two categories: t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Computed Tomography
سال: 2015
ISSN: 2169-2475,2169-2483
DOI: 10.4236/act.2015.44008