title: The digital indocyanine green videoangiography characteristics of well-defined choroidal neovascularization.
abstract: OBJECTIVE
  To evaluate the digital indocyanine green (ICG) videoangiography characteristics of well-defined choroidal neovascularization (CNV).
  
  
  METHODS
  The authors retrospectively reviewed all ICG angiograms performed at the New England Eye Center over a 2-year period. Included in this study were all patients with the clinical and fluorescein angiographic diagnosis of well-defined CNV according to the Macular Photocoagulation Study Group criteria.
  
  
  RESULTS
  Of the 25 eligible patients, 18 (72%) had a well-demarcated area of ICG hyperfluorescence that was observed either both early and late (6 patients = 24%) or only late (12 patients = 48%) on the ICG angiogram. Five patients (20%) showed only poorly demarcated late hyperfluorescence on ICG angiography. Two patients (8%) had type II occult CNV associated with classic CNV as per the Macular Photocoagulation Study Group criteria. Both patients showed a late, well-demarcated area of ICG hyperfluorescence greater than the area imaged with fluorescein angiography.
  
  
  CONCLUSIONS
  Choroidal neovascularization which is well-defined on fluorescein angiography has variable ICG appearances. When there is late leakage associated with a well-defined CNV on fluorescein angiography (type II occult CNV), ICG angiography may more completely delineate the extent of the lesion.
authors.affiliation: Instituto de Olhos de Goiania, Goiania-Goias, Brazil.
authors.forename: F K
authors.initials: FK
authors.lastname: Avvad
authors.forename: J S
authors.initials: JS
authors.lastname: Duker
authors.forename: E
authors.initials: E
authors.lastname: Reichel
authors.forename: T I
authors.initials: TI
authors.lastname: Margolis
authors.forename: C A
authors.initials: CA
authors.lastname: Puliafito
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002829:Choroid / Q000098:blood supply* / Q000473:pathology; D005260:Female; D005451:Fluorescein Angiography / Q000379:methods; D005654:Fundus Oculi; D006801:Humans; D007208:Indocyanine Green; D008297:Male; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000473:pathology*; D012189:Retrospective Studies; D014741:Video Recording
chemical_list: D007208:Indocyanine Green