Optical Coherence Tomography Angiography in Papilledema Compared to Pseudopapilledema
- سال انتشار: 1397
- محل انتشار: بیست و هشتمین کنگره سالیانه انجمن چشم پزشکی ایران
- کد COI اختصاصی: ACSOMED28_158
- زبان مقاله: انگلیسی
- تعداد مشاهده: 483
نویسندگان
Farabi Eye Hospital
چکیده
Purpose: To compare optical coherence tomography angiography (OCT-A) of peripapillary total vasculature and capillaries in patients with papilledema and pseudopapilledema. Methods: In this prospective, comparative study, forty one eyes of 21 subjects with papilledema, 27 eyes of 15 subjects with pseudopapilledema, and 48 eyes of 48 healthy normal subjects were included and were imaged using OCT-A. Peripapillary total vasculature information was recorded by using a commercial vessel density map. Customized image analysis with major vessel removal was also used to measure whole image capillary density and peripapillary capillary density (PCD). Peripapiilary retinal nerve fiber layer (RNFL) and macular ganglion cell complex (GCC) were recorded. Results: Peripapillary vasculature values were significantly lower in papilledema (58.5±6.1%) and pseudopapilledema (58.9±4.7%) eyes compared to healthy eyes (63.2±3.1%) using commercial machine software, without a difference between papilledema and pseudopapilledema eyes. However, using our customized software, peripapillary capillary density of papilledema eyes was 29.8±9.4%, not significantlydifferent from healthy subjects (31.8±7.4%) (P=0.94). Pseudopapilledema eyes with peripapillary density of 25.5±8.3% had significantly lower capillary values compared with control eyes (P=0.01). There was a significantly lower whole image and nasal sector peripapillary capillary density in pseudopapilledemma eyes than papilledema eyes (P=0.03, P=0.02, respectively). Conclusion: Whole image and nasal peripapillary sector capillary densities using OCT-A had diagnostic accuracy for differentiating true and pseudo disc swelling.کلیدواژه ها
مقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.