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NR 1-3/2005
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Przepływ krwi w
naczyniach oka u chorych na postać such± i wysiękow± starczego
zwyrodnienia plamki (AMD) badany metod± kolorowej
ultrasonografii dopplerowskiej (USG – CD)
Color Doppler imaging of the
retrobulbar circulation in nonexudative and exudative
age-related macular degeneration
Izabela Nowak1, Witold
Gajewicz2, Ludomir Stefańczyk2, Wojciech
Omulecki1
1Z Kliniki Chorób Oczu Katedry Chorób Oczu
Uniwersytetu Medycznego w Łodzi, Szpital Kliniczny nr 1
Kierownik: dr hab. n. med. Wojciech Omulecki
2Z Zakładu Radiologii – Diagnostyki Obrazowej
Uniwersytetu Medycznego w Łodzi, Szpital Kliniczny nr 1
Kierownik: dr hab. n. med. Ludomir Stefańczyk |
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| Summary: |
Purpose: To study
ocular perfusion in the ophthalmic artery, central
retinal artery, nasal and temporal posterior ciliary
arteries in nonexudative and exudative age-related
macular degeneration.
Material and methods: Twenty five subjects with
nonexudative age-related macular degeneration were
compared to twenty five subjects with exudative
age-related macular degeneration and to twenty five
age-matched control subjects. Color Doppler imaging
measured peak systolic velocity (PSV) and end diastolic
velocity (EDV) in the ophthalmic artery, central retinal
artery, nasal and temporal posterior ciliary arteries of
one eye. The resistivity index (RI) and the pulsatility
index (PI) were calculated.
Results: There were statistically significant
differences between: subjects with nonexudative
age-related macular degeneration and subjects with
exudative age-related macular degeneration in EDV, RI
and PI in the ophthalmic artery and PSV in the temporal
posterior ciliary artery, subjects with nonexudative
age-related macular degeneration and control subjects in
RI in central retinal artery, subjects with nonexudative
age-related macular degeneration and control subjects in
RI and PI in nasal posterior ciliary artery, subjects
with exudative age-related macular degeneration and
control subjects in PI in nasal posterior ciliary artery.
Conclusions: The study results showed reduced
ocular blood flow in patients with nonexudative
age-related macular degeneration compared to patients
with exudative age-related macular degeneration and to
control subjects. The higher RI in central retinal
artery in nonexudative age-related macular degeneration
compared to control subjects, suggest there may be a
more generalized perfusion abnormality beyond the
choroid. |
| Słowa kluczowe: |
starcze zwyrodnienie
plamki, kolorowa ultrasonografia dopplerowska. |
| Key words: |
age-related macular
degeneration, color Doppler imaging. |
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