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:: جلد 22، شماره 4 - ( مجله چشم پزشکی ایران 1389 ) ::
جلد 22 شماره 4 صفحات 73-79 برگشت به فهرست نسخه ها
A Modified Semiautomatic Method for Measurement of Hyperfluorescence Area in Fluorescein Angiography
دكتر خلیل قاسمی فلاورجانی، هانیه محمدرضا، دكتر صدیقه مرجانه حجازی*، دكتر مسعود ناصری پور
، mhejazi@sina.tums.ac.ir
چکیده:   (12904 مشاهده)

Purpose : To offer a semi-automatic algorithm to determine the area of angiographic hyperfluorescence

Methods : The proposed algorithm included wavelet filter, histogram equalization and modified Otsu thresholding. Hyperfluorescent area of 30 angiographic images obtained from patients with leaking choroidal neovascularization (CNV) and diabetic retinopathy were evaluated and the results were compared with those obtained by an expert ophthalmologist.

Results : The best wavelet filter was determined. Quantitative assessment of the hyperfluorescent area showed a mean error of 0.12±0.59 square millimeters. There was no significant difference between algorithm-measured and ophthalmologist-measured area.

Conclusion : The proposed algorithm may be used to accurately measure area of hyperfluorescence.

  

  Iranian Journal of Ophthalmology 201022(4):73-79 © 2010 by the Iranian Society of Ophthalmology

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نوع مطالعه: پژوهشی | موضوع مقاله: عمومى
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Ghasemi Falavarjani K, Mohammadreza H, Hejazi S M, Naseripour M. A Modified Semiautomatic Method for Measurement of Hyperfluorescence Area in Fluorescein Angiography. Iranian Journal of Ophthalmology. 2010; 22 (4) :73-79
URL: http://irjo.org/article-1-409-fa.html

قاسمی فلاورجانی خلیل، محمدرضا هانیه، حجازی صدیقه مرجانه، ناصری پور مسعود. A Modified Semiautomatic Method for Measurement of Hyperfluorescence Area in Fluorescein Angiography. مجله چشم پزشکی ایران. 1389; 22 (4) :73-79

URL: http://irjo.org/article-1-409-fa.html



جلد 22، شماره 4 - ( مجله چشم پزشکی ایران 1389 ) برگشت به فهرست نسخه ها
مجله چشم پزشکی ایران Iranian Journal of Ophthalmology
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