Department of Ophthalmology, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan.
Jpn J Ophthalmol. 2011 Nov;55(6):614-9. doi: 10.1007/s10384-011-0079-2. Epub 2011 Aug 27.
To determine whether a significant correlation exists between the ratio of the vertical and horizontal diameters of the choroidal veins and the choroidal thickness in normal eyes.
Six clinic-based normal eyes were studied. The macula and retina around the optic disc were examined by spectral-domain optical coherence tomography (OCT) during indocyanine green angiography (IA), and choroidal thickness maps were constructed. The vertical and horizontal diameters of the choroidal veins in the OCT images and horizontal diameters in the IA images in the venous phase were measured at 12 locations of different choroidal thickness. The horizontal diameter of the choroidal veins measured in the OCT images and the corresponding IA images were compared, and the correlation between the ratio of the vertical and horizontal diameters of the choroidal veins and the corresponding choroidal thickness was determined.
The horizontal diameters of the choroidal veins measured in IA and OCT images were not significantly different and were significantly correlated (r = 0.73; P < 0.01). The ratio of the vertical and horizontal diameters of the choroidal veins was significantly correlated with the choroidal thickness (r = 0.85; P < 0.001).
The significant correlation between the ratio of the vertical and horizontal diameters of the veins to the choroidal thickness should be considered when the cross-sectional area of the choroidal veins is evaluated.
确定正常眼中脉络膜静脉的垂直和水平直径比与脉络膜厚度之间是否存在显著相关性。
研究了 6 例基于临床的正常眼。在吲哚菁绿血管造影（IA）期间，通过频域光相干断层扫描（OCT）检查黄斑和视盘周围的视网膜，并构建脉络膜厚度图。在 12 个不同脉络膜厚度的位置测量 OCT 图像中脉络膜静脉的垂直和水平直径以及静脉相 IA 图像中的水平直径。比较 OCT 图像中测量的脉络膜静脉的水平直径和相应的 IA 图像，并确定脉络膜静脉垂直和水平直径比与相应脉络膜厚度之间的相关性。
IA 和 OCT 图像中测量的脉络膜静脉的水平直径无显著差异且具有显著相关性（r = 0.73；P < 0.01）。脉络膜静脉的垂直和水平直径比与脉络膜厚度显著相关（r = 0.85；P < 0.001）。
在评估脉络膜静脉的横截面积时，应考虑静脉的垂直和水平直径比与脉络膜厚度之间的显著相关性。
