Journal article
Volumetrics of the caudate nucleus: Reliability and validity of a new manual tracing protocol
Psychiatry research. Neuroimaging, Vol.163(3), pp.279-288
08/30/2008
DOI: 10.1016/j.pscychresns.2007.07.005
PMID: 18657402
Abstract
Our aim was to develop a reliable and valid manual segmentation protocol for tracing the caudate nucleus in MRI for volumetric and, potentially, shape analysis of the caudate. Using the protocol, two inter- and intra-rater reliability studies were conducted using five different raters on two different image analysis platforms (ANALYZE, Mayo Biomedical Imaging Resource, Rochester MN, USA, and HERMES, Nuclear Diagnostics AB, Stockholm, Sweden). Reference images for the detailed protocol are described. Two studies were performed. In study 1, the intra-rater class correlation ICC(1,1) for an experienced rater (JCLL) using this protocol for caudate nucleus volumes was evaluated by repeating right and left caudate measurements on 10 scans (20 comparisons) and was 0.972. The inter-rater class correlation ICC(1,
k) with OL was 0.922 on 5 scans (10 comparisons) and with BL was 0.960 on 5 scans (10 comparisons). In study 2, VT obtained an intra-rater class correlation of 0.9 on 5 scans (involving 10 comparisons, e.g. right and left caudate). The inter-rater class correlation ICC(1,
k) was 0.988 on 5 scans (again involving 10 comparisons) with EM. We therefore developed a novel, reliable and reference image-based, method of outlining the caudate nucleus on axial MRI scans, usable in two different image analysis laboratories, across two different sets number of tracers reliably, and across software platforms. This method is therefore potentially usable for any image analysis package capable of displaying and measuring outlined voxels from MRI brain scans.
Details
- Title: Subtitle
- Volumetrics of the caudate nucleus: Reliability and validity of a new manual tracing protocol
- Creators
- Jeffrey Chee Leong Looi - Research Centre for the Neurosciences of Ageing, Academic Unit of Psychological Medicine, Australian National University Medical School, The Canberra Hospital, Australian Capital Territory, AustraliaOlof Lindberg - Karolinska InstitutetBenny Liberg - Karolinska InstitutetVanessa Tatham - Canberra HospitalRajeev Kumar - Australian National UniversityJerome Maller - Monash Alfred Psychiatry Research centreEllen Millard - Australian National UniversityPerminder Sachdev - UNSW SydneyGöran Högberg - Karolinska InstitutetMarco Pagani - Institute of Cognitive Sciences and TechnologiesLisa Botes - Karolinska University HospitalEva-Lena Engman - Karolinska University HospitalYi Zhang - Karolinska University HospitalLeif Svensson - Karolinska University HospitalLars-Olof Wahlund - Karolinska Institutet
- Resource Type
- Journal article
- Publication Details
- Psychiatry research. Neuroimaging, Vol.163(3), pp.279-288
- DOI
- 10.1016/j.pscychresns.2007.07.005
- PMID
- 18657402
- NLM abbreviation
- Psychiatry Res Neuroimaging
- ISSN
- 0925-4927
- eISSN
- 1872-7506
- Publisher
- Elsevier Ireland Ltd
- Number of pages
- 10
- Language
- English
- Date published
- 08/30/2008
- Academic Unit
- Radiology
- Record Identifier
- 9984848428802771
Metrics
3 Record Views