Ultrasound biomicroscopy imaging for diagnosing chestnut thorn foreign bodies in anterior segment
10.13929/j.issn.1672-8475.2024.12.006
- VernacularTitle:超声生物显微镜诊断眼前段板栗刺异物
- Author:
Lu LU
1
;
Ying WANG
;
Chi ZHANG
;
Tianying FU
;
Jinxi GUO
;
Wei WEI
;
Yingwen LU
Author Information
1. 河北省眼科医院眼特检科,河北邢台 054000;河北省眼科学重点实验室,河北邢台 054000;河北省眼部疾病临床医学研究中心,河北邢台 054000
- Publication Type:Journal Article
- Keywords:
eye foreign bodies;
diagnosis;
microscopy,acoustic
- From:
Chinese Journal of Interventional Imaging and Therapy
2024;21(12):752-755
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of ultrasonic biomicroscopy(UBM)imaging for diagnosing chestnut thorn foreign bodies in anterior segment.Methods A total of 70 patients who underwent UBM examination due to chestnut thorn injury or residue of chestnut thorn after removal and then operation were retrospectively enrolled.The distance of chestnut thorn foreign bodies from corneal limbus,and the subconjunctival depth and length of them were measured based on UBM imaging.The efficacy of UBM for diagnosing chestnut thorn foreign bodies in anterior segment was evaluated according to surgical findings,and the correlation of quantitative parameters of foreign bodies were analyzed.Results Among 70 cases of chestnut thorn foreign bodies in anterior segment,single ocular tissue(5/70,7.14％)involvement was detected in 5 cases,while multiple ocular tissues involvement(65/70,92.86％)were noticed in 65 cases according to UBM.Totally 109 foreign bodies were detected by UBM,among which 98 were consistent with surgical findings,with the diagnostic accuracy of 89.91％(98/109),while 11 foreign bodies were not found during operation,with the false positive rate of 10.09％(11/109).Meanwhile,4 foreign bodies found and removed with operation were not displayed with UBM,and the false negative rate of UBM was 3.92％(4/102).Among 98 chestnut thorn foreign bodies correctly diagnosed with UBM,10 located in stromal layer of cornea(10/98,10.20％)and 88 located in ocular wall(88/98,89.80％),including 43 subconjunctival(43/88,48.86％)and 45 sclerotic(45/88,51.14％)foreign bodies,with the median length of 0.200 mm.The distance of 88 foreign bodies in ocular wall from corneal limbus was(2.963±1.504)mm,and the subconjunctival depth was(0.785±0.388)mm.The distance of foreign bodies from corneal limbus were positively correlated with their subconjunctival depth(r,=0.361,P＜0.010),while their lengths were not correlated with their distance from corneal limbus and subconjunctival depth(both P＞0.05).Conclusion UBM imaging was valuable for clinical diagnosis and localization of chestnut thorn foreign bodies in anterior segment.
