Guide to interpreting Spectral Domain Optical Coherence Tomography
Optical coherence tomography (OCD is an essential tool for diagnosing and managing retinal diseases and glaucoma. In this handbook, which features detailed schematic illustrations as well as actual OCT scans, we ojfer a step-by-step guide for interpreting images and data acquired by the revolutionary and novel spectral domain OCT technology.
We believe this handbook is important because spectral domain technology ojfers signqicant advances over time domain technology For example, spectral domain OCT offers:
1 – Improvements to the sagittal OCT B-scan, which reveals previoushi undetected structures
2 – Technical and clinical improvements in the study of glaucoma
3 – Three—dimensional images that provide new information. (Although this is a new way to view ocular structures, interpretation can be learned quickhx and easim and these images enable more accurate diagnosis.)
All references to spectral domain OCT in this handbook are based on our experiences with the spectral domain Cirrus W HD-OCT manufactured by Carl Zeiss Meditec, Inc., Dublin, CalqY (US. headquarters). All images were generated by the Cirrus W HD—OCT In these pages, we have ascribed great importance to explaining the meaning cy OCT images. In addition, we have tried to set jbrth a logical method for interpreting ophthalmic images. T he jirst phase of analysis subdivides each image into its smallest components. The second phase combines these jine details to synthesize the data, enabling us to arrive at an accurate diagnosis and to decide on appropriate therapy We hope this handbook helps eyecare practitioners appreciate the new possibilities offered by spectral domain OCT