Pe'er Jacob, Sancho Cristhian, Cantu Jorge, Eilam Sheerlee, Barzel Israel, Shulman Marina, Blumenthal Eytan Z
Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
Ophthalmologica. 2006;220(3):194-7. doi: 10.1159/000091765.
To compare the measurement of the basal diameter of choroidal melanoma, an important parameter for planning treatment and as a prognostic factor, by standardized ophthalmic ultrasound versus that obtained using a wide-angle fundus camera.
The longest and shortest basal diameters of 104 consecutive choroidal melanomas of patients seen at the ocular oncology service of the Hadassah University Hospital were measured by B-scan ultrasound and compared with those measured by a wide-angle fundus camera (Panoret-1000). Each diameter was measured thrice by two ophthalmic photographers, and intra-observer and interobserver reproducibility were calculated as well.
The measurements of both the long and short diameters of the choroidal melanomas were significantly larger when measured by Panoret-1000 as compared with the B-scan ultrasound. There was no significant difference among the three measurements of each of the photographers. The interobserver reproducibility between the two photographers was high.
Our findings can be attributed to the larger extent of the pigmentation of the melanoma compared to its recognized elevation. Since pigmentation of choroidal melanoma is easier to recognize than its elevation, we assume that measurement by a wide-angle fundus camera is more accurate in pigmented tumors, and should be adopted for measuring the basal diameter of choroidal melanomas in planning treatment and follow-up.
比较标准化眼科超声测量脉络膜黑色素瘤基底直径（这是规划治疗及作为预后因素的一个重要参数）与使用广角眼底相机测量结果。
对哈达萨大学医院眼科肿瘤门诊连续收治的104例脉络膜黑色素瘤患者，通过B超测量其最长和最短基底直径，并与使用广角眼底相机（Panoret - 1000）测量的结果进行比较。两名眼科摄影师对每个直径测量三次，并计算观察者内和观察者间的重复性。
与B超相比，用Panoret - 1000测量的脉络膜黑色素瘤长径和短径测量值均显著更大。每位摄影师的三次测量之间无显著差异。两名摄影师之间的观察者间重复性较高。
我们的发现可归因于黑色素瘤色素沉着范围与其公认的隆起程度相比更大。由于脉络膜黑色素瘤的色素沉着比其隆起更容易识别，我们认为在色素性肿瘤中，用广角眼底相机测量更准确，在规划治疗和随访时应采用其测量脉络膜黑色素瘤的基底直径。
