Sökning: onr:"swepub:oai:DiVA.org:kth-309819" >
Age-Specific Adult ...
Age-Specific Adult Rat Brain MRI Templates and Tissue Probability Maps
-
- MacNicol, Eilidh (författare)
- Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England.
-
- Wright, Paul (författare)
- Kings Coll London, Sch Biomed Engn & Imaging Sci, Fac Life Sci Med, London, England.
-
- Kim, Eugene (författare)
- Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England.
-
visa fler...
-
- Brusini, Irene (författare)
- Karolinska Institutet,KTH,Medicinsk avbildning,Karolinska Inst, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden.
-
- Esteban, Oscar (författare)
- Stanford Univ, Dept Psychol, Bldg 420, Stanford, CA 94305 USA.;Lausanne Univ Hosp, Dept Radiol, Lausanne, Switzerland.;Univ Lausanne, Lausanne, Switzerland.
-
- Simmons, Camilla (författare)
- Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England.
-
- Turkheimer, Federico E. (författare)
- Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England.
-
- Cash, Diana (författare)
- Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England.
-
visa färre...
-
Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England Kings Coll London, Sch Biomed Engn & Imaging Sci, Fac Life Sci Med, London, England. (creator_code:org_t)
- 2022-01-07
- 2022
- Engelska.
-
Ingår i: Frontiers in Neuroinformatics. - : Frontiers Media SA. - 1662-5196. ; 15
- Relaterad länk:
-
https://doi.org/10.3...
-
visa fler...
-
https://www.frontier...
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
http://kipublication...
-
visa färre...
Abstract
Ämnesord
Stäng
- Age-specific resources in human MRI mitigate processing biases that arise from structural changes across the lifespan. There are fewer age-specific resources for preclinical imaging, and they only represent developmental periods rather than adulthood. Since rats recapitulate many facets of human aging, it was hypothesized that brain volume and each tissue's relative contribution to total brain volume would change with age in the adult rat. Data from a longitudinal study of rats at 3, 5, 11, and 17 months old were used to test this hypothesis. Tissue volume was estimated from high resolution structural images using a priori information from tissue probability maps. However, existing tissue probability maps generated inaccurate gray matter probabilities in subcortical structures, particularly the thalamus. To address this issue, gray matter, white matter, and CSF tissue probability maps were generated by combining anatomical and signal intensity information. The effects of age on volumetric estimations were then assessed with mixed-effects models. Results showed that herein estimation of gray matter volumes better matched histological evidence, as compared to existing resources. All tissue volumes increased with age, and the tissue proportions relative to total brain volume varied across adulthood. Consequently, a set of rat brain templates and tissue probability maps from across the adult lifespan is released to expand the preclinical MRI community's fundamental resources.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- template
- tissue prior
- Sprague-Dawley
- preclinical imaging
- aging
- morphometry
- VBM
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas