Department of Ophthalmology, Faculty of Medicine, Kasr Al Ainy School of Medicine, Cairo University, Cairo, Egypt.
Eye (Lond). 2023 Oct;37(14):3020-3025. doi: 10.1038/s41433-023-02464-5. Epub 2023 Mar 6.
To compare 10-MHz and 15-MHz B-scan probes regarding the detection and localization of retinal detachment (RD) in silicone-oil-filled eyes.
This cross-sectional observational study included 100 eyes (98 patients) -having media opacity precluding fundus examination- scheduled for silicone-oil removal. Patients were examined in the sitting-position using both frequencies one week preoperatively. Longitudinal and transverse scans were taken in primary-gaze, inferior, inferonasal, and inferotemporal positions to detect the presence/absence and extent of RD. Patients were sub-grouped according to axial lengths (AXLs), state of silicone emulsification, and globe filling. Agreement between sonographic and intraoperative observations was compared.
No statistically significant differences were found between 15-MHz and intra-operative findings regarding RD detection (P = 0.752) and accurate localization of inferior, inferonasal, and inferotemporal RD (P = 0.279, 0.606, and 0.599). There were statistically significant differences between 10-MHz and intra-operative findings regarding RD detection and localization (P < 0.001). The 15-MHz probe was superior to 10-MHz probe regarding the accuracy of RD detection and localization (94% and 47%, respectively). The accuracy of 15-MHz probe was 88%, 83%, and 85% in detecting and localizing inferior, inferonasal, and inferotemporal RD compared to 45%, 60%, and 62% with 10-MHz probe. The 15-MHz probe showed better sensitivity while 10-MHz probe showed better accuracy in eyes with short AXLs. The 10-MHz probe showed better sensitivity in patients with sonographic emulsification while15-MHz probe had better sensitivity in detecting vitreoretinal-interface disorders.
The 15-MHz B-scan probe is more accurate in detecting and localizing recurrent RD in silicone-oil-filled globes with higher sensitivity in detecting vitreoretinal-interface disorders.
比较 10MHz 和 15MHz B 扫描探头在硅油填充眼视网膜脱离(RD)检测和定位中的作用。
本横断面观察性研究纳入了 100 只眼(98 例患者)-存在妨碍眼底检查的介质混浊-计划行硅油取出术。患者在术前一周以坐位接受两种频率的检查。在第一眼注视、下方、下方鼻侧和下方颞侧位置进行纵向和横向扫描,以检测 RD 的存在/缺失和程度。根据眼轴长度(AXL)、硅油乳化状态和眼球填充情况将患者分为亚组。比较超声与术中观察结果的一致性。
15MHz 与术中发现 RD 检测(P=0.752)和准确定位下方、下方鼻侧和下方颞侧 RD(P=0.279、0.606 和 0.599)之间无统计学差异。10MHz 与术中发现 RD 检测和定位(P<0.001)之间存在统计学差异。15MHz 探头在 RD 检测和定位的准确性方面优于 10MHz 探头(分别为 94%和 47%)。与 10MHz 探头(45%、60%和 62%)相比,15MHz 探头在检测和定位下方、下方鼻侧和下方颞侧 RD 的准确性分别为 88%、83%和 85%。在短 AXL 眼,15MHz 探头显示出更好的敏感性,而 10MHz 探头显示出更好的准确性。在有超声乳化的患者中,10MHz 探头显示出更好的敏感性,而 15MHz 探头在检测玻璃体视网膜界面疾病方面显示出更好的敏感性。
15MHz B 扫描探头在硅油填充眼球中检测和定位复发性 RD 更准确,在检测玻璃体视网膜界面疾病方面具有更高的敏感性。