Clinical Science Imaging
- Ophthalmic Surgery, Lasers and Imaging
- July/August 2012 - Volume 43 · Issue 4: 275-283
BACKGROUND AND OBJECTIVE:
To study characteristics of errors in thickness comparison maps (TCMs) from three-dimensional optical coherence tomography.
PATIENTS AND METHODS:
Patients who underwent three-dimensional optical coherence tomography examinations were included. Errors in TCM were categorized into several types according to common features, and the origins and distributions of errors were investigated.
Errors were observed in 25 (22.9%) of 109 TCMs with a normal macula and in 88 (63.3%) of 139 TCMs with an abnormal macula (P < .001). The errors were categorized into three types: horizontal line-shaped errors that originated from fixation loss by the examinee, jumping errors caused by segmentation error, and two-peaked errors due to mismatching. There were significant differences in the distributions of the error types among different diagnoses.
Errors in TCM were categorized into several types according to common features. Distributions of these types differed among eyes according to diagnosis.
From the Departments of Ophthalmology (J-HP, JO, S-WK, KH) and Biostatistics (K-SY), Korea University College of Medicine, Seoul, Korea.
Presented at the Association for Research in Vision and Ophthalmology annual meeting, May 2–6, 2010, Fort Lauderdale, Florida.
Supported by a grant of the Korean Health Technology R&D Project, Ministry for Health, Welfare & Family Affairs, Republic of Korea (A102024).
The authors have no financial or proprietary interest in the materials presented herein.
Address correspondence to Jaeryung Oh, MD, PhD, Department of Ophthalmology, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Sungbuk-gu, Seoul, 136-705, Korea. E-mail: email@example.com
Received: March 01, 2012
Accepted: April 02, 2012