Titre | Comparing anterior segment optical coherence tomography and ultrasound biomicroscopy with histopathology in measurement of corneal and bulbar conjunctival tumors depth |
Abstract Nr. | 2083 |
But | To compare tumor depth measured by histopathology(HP) with measurements by Ultrasound Biomicroscopy (UBM) and Anterior Segment Optical Coherence Tomography (A-OCT),to investigate whether these techniques are as accurate as HP. |
Méthodes | 35 patients with 42 corneal or conjunctival bulbar tumors were imaged with A-OCT and UBM in order to measure tumor depth.11 of the tumors were excised and analyzed on histopathology. The correlation of the depth measurement on HP versus A-OCT and UBM was statistically analyzed.When the tumor was not excised, depth measurements on A-OCT versus UBM were compared. |
Résultats | Statistical analysis showed that UBM and HP measurements of tumor depth are positively correlated,as are UBM and A-OCT measurements.It was not possible to obtain statistically significant data for the correlation between HP and A-OCT measurements because of the small study population.Image quality was overall beter with A-OCT than with UBM,but in 12 tumors,tumor depth measurement on A-OCT was impossible because of posterior tumor back shadowing. |
Conclusion | UBM can measure tumor depth as accurately as HP.Tumor depth measurements on A-OCT and UBM are positively correlated.No relation was found between HP and A-OCT measurements because of the small study population.A larger study is needed to investigate whether measurement of tumor depth with A-OCT is as accurate as HP.Because of the drawbacks of conjunctival tumor depth measurements on histopathology,we think that it is possible that A-OCT and UBM could become the golden standard for measuring corneal and bulbar conjunctival tumor depth.We would use A-OCT if the tumor is not too thick or pigmented and UBM in case of posterior tumor back shadowing. |
Conflit d'intérêt | Non |
Nom | LAUWERS |
Initiales | N |
Institut | UZA |
Ville | Edegem |
Nom | MERTENS |
Initiales | M |
Institut | UZA |
Ville | Edegem |
Nom | JANSSENS |
Initiales | K |
Institut | UZA |
Ville | Edegem |
Nom | MATHYSEN |
Initiales | D |
Institut | UZA |
Ville | Edegem |
Nom | DE KEIZER |
Initiales | RJW |
Institut | UZA |
Ville | Edegem |
Nom | DE GROOT |
Initiales | V |
Institut | UZA |
Ville | Edegem |