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Estimation of oxygen tension in retinal capillaries from phosphorescence lifetime images

  • Isa Yildirim*
  • , Rashid Ansari
  • , Justin Wanek
  • , I. Samil Yetik
  • , Mahnaz Shahidi
  • *Bu çalışma için yazışmadan sorumlu yazar
  • University of Illinois at Chicago
  • Illinois Institute of Technology

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıbilirkişi

Özet

Investigating the effect of retinal oxygenation abnormalities in the development of common eye diseases requires accurate assessment of oxygen tension in retinal vasculatures. Estimation of oxygen tension in retinal capillaries using phosphorescence lifetime imaging is addressed in this paper. Separation from tissue and oxygen tension estimation is a more challenging task for capillaries when compared with large retinal vessels due to the finer structure and noise predominance in capillaries. An automated segmentation procedure is applied using the EM algorithm and noise contamination is reduced using a regularization method unlike previous approaches to capillary analysis where segmentation was done manually and noise contamination was ignored. We demonstrate the effectiveness of the proposed method by applying it to the retinal image data acquired from rat eyes, and we show that the oxygen tension estimate of retinal capillaries falls in the physiologically expected range.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıProceedings - 2009 IEEE International Symposium on Biomedical Imaging
Ana bilgisayar yayını alt yazısıFrom Nano to Macro, ISBI 2009
YayınlayanIEEE Computer Society
Sayfalar57-60
Sayfa sayısı4
ISBN (Basılı)9781424439324
DOI'lar
Yayın durumuYayınlandı - 2009
Etkinlik6th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 - Boston, MA, United States
Süre: 28 Haz 20091 Tem 2009

Yayın serisi

AdıProceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009

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???event.eventtypes.event.conference???6th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009
Ülke/BölgeUnited States
ŞehirBoston, MA
Periyot28/06/091/07/09

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