[Zhonghua yan ke za zhi] Chinese journal of ophthalmology · 2010
[The value of Pentacam in diagnosis of intralenticular foreign body].
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Yang Li-hong, Guo Ya-wen, Tang Xin
Аннотация
OBJECTIVE: To study the value of Pentacam in the diagnosis and localization of intralenticular foreign body.
METHODS: It was a comparative study. In this retrospective study, 9 cases with intralenticular foreign bodies were examined by using slit-lamp, B-mode ultrasound, ultrasound biomicroscopy (UBM), CT and Pentacam. The results were confirmed by operation.
RESULTS: Foreign bodies in 4 cases were detected by slit-lamp, with 1 case suspected; 5 cases by B-mode ultrasound; and 6 cases by UBM, CT and Pentacam. Projectile foreign bodies penetrated cornea and were remained in the lens in all 9 cases. In all cases, Pentacam detected all related signs of intralenticular foreign body, including corneal wound of entry, wound or organized wound in the anterior lens capsule, bulge of cortex lentis and traumatic cataract. Pentacam also could localize the meridian of foreign body precisely and could recognize the relationship between foreign body and neighbour tissues. But it was difficult to recognize the nature of foreign body. The measured size of foreign bodies in Pentacam image was a little smaller than the actual size.
CONCLUSIONS: Pentacam has a valuable role in the diagnosis of intralenticular foreign body and the related damages. Pentacam could indicate precise location of intralenticular foreign body. Combined with multiple image-related methods. Pentacam can provide accurate and comprehensive information in the diagnosis and localization of intralenticular foreign body.
METHODS: It was a comparative study. In this retrospective study, 9 cases with intralenticular foreign bodies were examined by using slit-lamp, B-mode ultrasound, ultrasound biomicroscopy (UBM), CT and Pentacam. The results were confirmed by operation.
RESULTS: Foreign bodies in 4 cases were detected by slit-lamp, with 1 case suspected; 5 cases by B-mode ultrasound; and 6 cases by UBM, CT and Pentacam. Projectile foreign bodies penetrated cornea and were remained in the lens in all 9 cases. In all cases, Pentacam detected all related signs of intralenticular foreign body, including corneal wound of entry, wound or organized wound in the anterior lens capsule, bulge of cortex lentis and traumatic cataract. Pentacam also could localize the meridian of foreign body precisely and could recognize the relationship between foreign body and neighbour tissues. But it was difficult to recognize the nature of foreign body. The measured size of foreign bodies in Pentacam image was a little smaller than the actual size.
CONCLUSIONS: Pentacam has a valuable role in the diagnosis of intralenticular foreign body and the related damages. Pentacam could indicate precise location of intralenticular foreign body. Combined with multiple image-related methods. Pentacam can provide accurate and comprehensive information in the diagnosis and localization of intralenticular foreign body.