Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004355896> ?p ?o ?g. }
- W2004355896 endingPage "1648" @default.
- W2004355896 startingPage "1639" @default.
- W2004355896 abstract "In human brain diffusion measurements, there are deviations from monoexponential signal decay at high values of the diffusion-weighting factor b. This is known as non-Gaussian diffusion and can provide novel kinds of image contrast. We evaluated quantitatively the goodness-of-fit of five popular diffusion models. Because of the Rician signal distribution and physiological noise, the measurement errors are unknown. This precludes standard χ(2) testing. By repeating the measurement 25 times, the errors were estimated. Hypothesis testing based on the residual after least squares curve fitting was then carried out. Systematic errors originating from the Rician signal bias were eliminated in the fitting procedure. We performed diffusion measurements on four healthy volunteers with b-values ranging from 0 to 5000 s/mm(2) . The data were analyzed voxelwise. The null hypothesis of a given model being adequate was rejected, if the residual after fitting exceeded a limit that corresponds to a significance level of 1%. The fraction of rejected voxels depended strongly on the number of free model parameters. The rejected fraction was: monoexponential model with two parameters, 94%; statistical model with three parameters, 29%; stretched exponential model with three parameters, 35%; cumulant model with three parameters, 48%; cumulant model with four parameters, 11%; biexponential model with four parameters, 2.9%." @default.
- W2004355896 created "2016-06-24" @default.
- W2004355896 creator A5085169943 @default.
- W2004355896 date "2011-04-26" @default.
- W2004355896 modified "2023-10-09" @default.
- W2004355896 title "Statistical assessment of non-Gaussian diffusion models" @default.
- W2004355896 cites W1966348853 @default.
- W2004355896 cites W1970978975 @default.
- W2004355896 cites W1971355773 @default.
- W2004355896 cites W1990711988 @default.
- W2004355896 cites W2009494091 @default.
- W2004355896 cites W2024991751 @default.
- W2004355896 cites W2032253885 @default.
- W2004355896 cites W2039785146 @default.
- W2004355896 cites W2044243691 @default.
- W2004355896 cites W2046498575 @default.
- W2004355896 cites W2048240620 @default.
- W2004355896 cites W2049685486 @default.
- W2004355896 cites W2059784307 @default.
- W2004355896 cites W2068779855 @default.
- W2004355896 cites W2075159583 @default.
- W2004355896 cites W2075247694 @default.
- W2004355896 cites W2080935328 @default.
- W2004355896 cites W2082182286 @default.
- W2004355896 cites W2082339873 @default.
- W2004355896 cites W2088780039 @default.
- W2004355896 cites W2096615275 @default.
- W2004355896 cites W2103912969 @default.
- W2004355896 cites W2116823839 @default.
- W2004355896 cites W2117927530 @default.
- W2004355896 cites W2122195475 @default.
- W2004355896 cites W2129841144 @default.
- W2004355896 cites W2133721390 @default.
- W2004355896 cites W2134608917 @default.
- W2004355896 cites W2138234438 @default.
- W2004355896 cites W2139447054 @default.
- W2004355896 cites W2142635246 @default.
- W2004355896 cites W2147602847 @default.
- W2004355896 cites W2165170333 @default.
- W2004355896 cites W2167818248 @default.
- W2004355896 cites W2168175751 @default.
- W2004355896 cites W3136463145 @default.
- W2004355896 cites W4230065791 @default.
- W2004355896 doi "https://doi.org/10.1002/mrm.22960" @default.
- W2004355896 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21523826" @default.
- W2004355896 hasPublicationYear "2011" @default.
- W2004355896 type Work @default.
- W2004355896 sameAs 2004355896 @default.
- W2004355896 citedByCount "17" @default.
- W2004355896 countsByYear W20043558962012 @default.
- W2004355896 countsByYear W20043558962013 @default.
- W2004355896 countsByYear W20043558962014 @default.
- W2004355896 countsByYear W20043558962015 @default.
- W2004355896 countsByYear W20043558962016 @default.
- W2004355896 countsByYear W20043558962017 @default.
- W2004355896 countsByYear W20043558962019 @default.
- W2004355896 countsByYear W20043558962023 @default.
- W2004355896 crossrefType "journal-article" @default.
- W2004355896 hasAuthorship W2004355896A5085169943 @default.
- W2004355896 hasConcept C105795698 @default.
- W2004355896 hasConcept C11413529 @default.
- W2004355896 hasConcept C114289077 @default.
- W2004355896 hasConcept C115961682 @default.
- W2004355896 hasConcept C121332964 @default.
- W2004355896 hasConcept C132480984 @default.
- W2004355896 hasConcept C134306372 @default.
- W2004355896 hasConcept C151376022 @default.
- W2004355896 hasConcept C154945302 @default.
- W2004355896 hasConcept C155512373 @default.
- W2004355896 hasConcept C163716315 @default.
- W2004355896 hasConcept C183115368 @default.
- W2004355896 hasConcept C24890656 @default.
- W2004355896 hasConcept C33923547 @default.
- W2004355896 hasConcept C41008148 @default.
- W2004355896 hasConcept C62520636 @default.
- W2004355896 hasConcept C69357855 @default.
- W2004355896 hasConcept C97355855 @default.
- W2004355896 hasConcept C99498987 @default.
- W2004355896 hasConceptScore W2004355896C105795698 @default.
- W2004355896 hasConceptScore W2004355896C11413529 @default.
- W2004355896 hasConceptScore W2004355896C114289077 @default.
- W2004355896 hasConceptScore W2004355896C115961682 @default.
- W2004355896 hasConceptScore W2004355896C121332964 @default.
- W2004355896 hasConceptScore W2004355896C132480984 @default.
- W2004355896 hasConceptScore W2004355896C134306372 @default.
- W2004355896 hasConceptScore W2004355896C151376022 @default.
- W2004355896 hasConceptScore W2004355896C154945302 @default.
- W2004355896 hasConceptScore W2004355896C155512373 @default.
- W2004355896 hasConceptScore W2004355896C163716315 @default.
- W2004355896 hasConceptScore W2004355896C183115368 @default.
- W2004355896 hasConceptScore W2004355896C24890656 @default.
- W2004355896 hasConceptScore W2004355896C33923547 @default.
- W2004355896 hasConceptScore W2004355896C41008148 @default.
- W2004355896 hasConceptScore W2004355896C62520636 @default.
- W2004355896 hasConceptScore W2004355896C69357855 @default.
- W2004355896 hasConceptScore W2004355896C97355855 @default.
- W2004355896 hasConceptScore W2004355896C99498987 @default.
- W2004355896 hasIssue "6" @default.