KERMA ratios vs. SSDE: is one better at estimating pediatric CT radiation doses?
نویسندگان
چکیده
منابع مشابه
Underlay vs . Interweave : Which one is better ?
Cognitive Networks have been proposed to opportunistically discover and exploit licensed spectrum bands, in which the secondary users’ (SU) activity is subordinated to primary users (PU). Depending on the nature of the interaction between the SU and PU, there are two frequently encountered types of spectrum access: underlay and interweave. While a lot of research effort has been devoted to each...
متن کاملAssessment of compliance levels of effective doses in pediatric CT
Introduction: Computed tomography (CT) is a medical imaging modality that produces 3-D cross-sectional images of tissues using several X-ray projections at different angles. Since its introduction in the 1970s, CT usage has been on the increase for both adults and pediatrics. A major challenge of this modality is the high doses of radiation exposure to patients, especially in p...
متن کاملSize specific dose estimate (SSDE) for estimating patient dose from CT used in myocardial perfusion SPECT/CT
Objective(s): Size specific dose estimate (SSDE) is a new parameter that includes patient size factor in its calculation. Recent studies have produced mixed results on the utility of SSDE, especially when automatic exposure control (AEC) was used. The objective of the study was to find out if there is a relationship between patient size and each of the parameters, SSDE...
متن کاملPatient radiation doses for electron beam CT.
A Monte Carlo based computer model has been developed for electron beam computed tomography (EBCT) to calculate organ and effective doses in a humanoid hermaphrodite phantom. The program has been validated by comparison with experimental measurements of the CT dose index in standard head and body CT dose phantoms; agreement to better than 8% has been found. The robustness of the model has been ...
متن کاملInheritance vs . delegation : Is one better than the other ?
In this paper I will discuss the differences between inheritance based systemsand delegation based systems. Specifically, I would like to discuss the way objects are organized in both systems, the way inheritance is implemented, how the self variable is treated and I would like to discuss the advantages and disadvantages of both language types.
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: Pediatric Radiology
سال: 2012
ISSN: 0301-0449,1432-1998
DOI: 10.1007/s00247-012-2371-9