SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:umu-40046"
 

Sökning: onr:"swepub:oai:DiVA.org:umu-40046" > MR imaging of brain...

  • Ambarki, KhalidUmeå universitet,Radiofysik (författare)

MR imaging of brain volumes : evaluation of a fully automatic software

  • Artikel/kapitelEngelska2011

Förlag, utgivningsår, omfång ...

  • 2011
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:umu-40046
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-40046URI
  • https://doi.org/10.3174/ajnr.A2275DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • BACKGROUND AND PURPOSE: Automatic assessment of brain volumes is needed in researchand clinical practice. Manual tracing is still the criterionstandard but is time-consuming. It is important to validatethe automatic tools to avoid the problems of clinical studiesdrawing conclusions on the basis of brain volumes estimatedwith methodologic errors. The objective of this study was toevaluate a new commercially available fully automatic softwarefor MR imaging of brain volume assessment. Automatic and expertmanual brain volumes were compared. MATERIALS AND METHODS: MR imaging (3T, axial T2 and FLAIR) was performed in 41 healthyelderly volunteers (mean age, 70 ± 6 years) and 20 patientswith hydrocephalus (mean age, 73 ± 7 years). The softwareQBrain was used to manually and automatically measure the followingbrain volumes: ICV, BTV, VV, and WMHV. The manual method hasbeen previously validated and was used as the reference. Agreementbetween the manual and automatic methods was evaluated by usinglinear regression and Bland-Altman plots. RESULTS: There were significant differences between the automatic andmanual methods regarding all volumes. The mean differences wereICV = 49 ± 93 mL (mean ± 2SD, n = 61), BTV = 11± 70 mL, VV = –6 ± 10 mL, and WMHV = 2.4± 9 mL. The automatic calculations of brain volumes tookapproximately 2 minutes per investigation. CONCLUSIONS: The automatic tool is promising and provides rapid assessmentof brain volumes. However, the software needs improvement beforeit is incorporated into research or daily use. Manual segmentationremains the reference method.

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Wåhlin, AndersUmeå universitet,Radiofysik(Swepub:umu)arswan02 (författare)
  • Birgander, RichardUmeå universitet,Diagnostisk radiologi(Swepub:umu)ribi0006 (författare)
  • Eklund, AndersUmeå universitet,Radiofysik(Swepub:umu)anek0025 (författare)
  • Malm, JanUmeå universitet,Klinisk neurovetenskap(Swepub:umu)jama0002 (författare)
  • Umeå universitetRadiofysik (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:American Journal of Neuroradiology32:2, s. 408-4120195-61081936-959X

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy