scholarly journals Advances and Clinical Applications of Anterior Segment Imaging Techniques 2020

2021 ◽  
Vol 2021 ◽  
pp. 1-2
Author(s):  
Sang Beom Han ◽  
Jodhbir S. Mehta ◽  
Yu-Chi Liu ◽  
Karim Mohamed Noriega
Keyword(s):  
Imaging Techniques ◽  
Anterior Segment ◽  
Clinical Applications ◽  
Anterior Segment Imaging

scholarly journals Advances and Clinical Applications of Anterior Segment Imaging Techniques

2016 ◽  
Vol 2016 ◽  
pp. 1-2 ◽  
Author(s):  
Sang Beom Han ◽  
Jodhbir S. Mehta ◽  
Yu-Chi Liu ◽  
Karim Mohamed-Noriega
Keyword(s):  
Imaging Techniques ◽  
Anterior Segment ◽  
Clinical Applications ◽  
Anterior Segment Imaging

Anterior Segment Imaging Techniques

2007 ◽  
pp. 1-1
Author(s):  
Tanuj Dada ◽  
Ritu Gadia ◽  
Sujith Vengayil ◽  
Anand Aggarwal
Keyword(s):  
Imaging Techniques ◽  
Anterior Segment ◽  
Anterior Segment Imaging

scholarly journals Recent Advances in Ocular Imaging Techniques

2017 ◽  
Vol 10 (02) ◽  
pp. 87
Author(s):  
Parag A Majmudar ◽  
Keyword(s):  
Refractive Surgery ◽  
Imaging Techniques ◽  
Anterior Segment ◽  
Toric Intraocular Lens ◽  
Expert Interview ◽  
Ocular Imaging ◽  
Rapid Pace ◽  
Anterior Segment Imaging ◽  
Optimal Imaging

I maging of the eye is an integral part of ophthalmic examination, and is essential for the diagnosis, assessment of severity and progression, and evaluation of management of ocular disease. Advances in imaging technology are progressing at a rapid pace. In an expert interview Parag A Majmudar discussed a number of aspects of optical imaging including the role of optical coherence tomography (OCT) in corneal and refractive surgery, optimal imaging of the eye during toric intraocular lens (IOL) implantation, and the role of aberrometry during anterior segment imaging.

Nuclear Medicine: An Overview of Imaging Techniques, Clinical Applications and Trials

2013 ◽  
pp. 293-325
Author(s):  
Amit Mehndiratta ◽  
Prabu Anandaraj ◽  
Christian M. Zechmann ◽  
Frederik L. Giesel
Keyword(s):  
Nuclear Medicine ◽  
Imaging Techniques ◽  
Clinical Applications

Anterior segment optical coherence tomography and ultrasound biomicroscopy for measuring thickness of corneal and bulbar conjunctival tumours

2021 ◽  
pp. bjophthalmol-2018-312337
Author(s):  
Noémie Lauwers ◽  
Katleen Janssens ◽  
Michelle Mertens ◽  
Danny Mathysen ◽  
Martin Lammens ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Gold Standard ◽  
Imaging Techniques ◽  
Anterior Segment ◽  
Ultrasound Biomicroscopy ◽  
Thickness Measurement ◽  
Histopathological Analysis ◽  
Optical Coherence ◽  
Tumour Thickness ◽  
Thickness Measurements

Background/ObjectiveAnterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM) are two non-invasive imaging techniques used for the measurement of tumour thickness in corneal and bulbar conjunctival tumours. Histopathology (HP), however, remains the gold standard for the measurement of tumour thickness. The aim of this study was to determine whether AS-OCT and UBM are as accurate as HP for measuring tumour thickness.MethodsForty-two corneal and bulbar conjunctival tumours were imaged using AS-OCT and UBM. Images were assessed and tumour thickness was measured. Eleven patients subsequently underwent surgical excision. All specimens were measured during histopathological analysis. The correlation of the thickness measurement on HP to AS-OCT and UBM was then statistically analysed. In cases where the tumour was not excised, thickness measurement comparisons between AS-OCT and UBM were analysed.ResultsAS-OCT and UBM measurements of tumour thickness were found to be significantly positively correlated (p=<0.001), as were UBM and HP thickness measurements (p=0.031). HP and AS-OCT measurements, however, only showed a mild but non-significant positive correlation.ConclusionBoth AS-OCT and UBM are useful techniques to image and measure the thickness of corneal and conjunctival bulbar tumours. While AS-OCT provides better details than UBM, it was more limited in visualising the posterior boundary of the tumour, particularly in malignant tumours. While thickness measurements of both methodologies were correlated, neither should yet be considered as replacements to the gold standard of HP.

scholarly journals Anterior Chamber Angle Assessment Techniques: A Review

2020 ◽  
Vol 9 (12) ◽  
pp. 3814
Author(s):  
Ivano Riva ◽  
Eleonora Micheletti ◽  
Francesco Oddone ◽  
Carlo Bruttini ◽  
Silvia Montescani ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Anterior Chamber ◽  
Imaging Techniques ◽  
Anterior Segment ◽  
Standard Technique ◽  
Qualitative Assessment ◽  
Ophthalmological Examination ◽  
Slit Lamp ◽  
Anterior Chamber Angle ◽  
Chamber Angle

Assessment of the anterior chamber angle (ACA) is an essential part of the ophthalmological examination. It is intrinsically related to the diagnosis and treatment of glaucoma and has a role in its prevention. Although slit-lamp gonioscopy is considered the gold-standard technique for ACA evaluation, its poor reproducibility and the long learning curve are well-known shortcomings. Several new imaging techniques for angle evaluation have been developed in the recent years. However, whether these instruments may replace or not gonioscopy in everyday clinical practice remains unclear. This review summarizes the last findings in ACA evaluation, focusing on new instruments and their application to the clinical practice. Special attention will be given to the comparison between these new techniques and traditional slit-lamp gonioscopy. Whereas ultrasound biomicroscopy and anterior segment optical coherence tomography provide quantitative measurements of the anterior segment’s structures, new gonio-photographic systems allow for a qualitative assessment of angle findings, similarly to gonioscopy. Recently developed deep learning algorithms provide an automated classification of angle images, aiding physicians in taking faster and more efficient decisions. Despite new imaging techniques made analysis of the ACA more objective and practical, the ideal method for ACA evaluation has still to be determined.

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