백색광 간섭계를 이용한 안구 돌출 측정 장치
System for Exophthalmos Measurement using White Light Scanning Interferometer
- 주제(키워드) Exophthalmometric values , Exophthalmos , White Light Scanning Interferometer , Image Processing , Inspection System
- 발행기관 아주대학교
- 지도교수 김영길
- 발행년도 2019
- 학위수여년월 2019. 8
- 학위명 박사
- 학과 및 전공 일반대학원 의용공학과정
- 실제URI http://www.dcollection.net/handler/ajou/000000029056
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
The relative position of the orbital eye can be a criterion for evaluating several pathological conditions. It is especially useful to diagnose orbital fractures, thyroid eye disease, orbital tumors and to evaluate the outcome of medication and surgical treatment. Hertel and Naugle are representative measurement tools used to measure exophthalmometic values, and have different measurement results, such as fixed orbits, every time they are inspected, even if the same inspector repeatedly measures them. Even with the same calibrator, it is inevitable that different manufacturers will change the design of the stationary part of the orbit, causing the surveyor to make a measurement error. In order to improve the error of the conventional manual protrusion system, we designed and manufactured an automatic protrusion measuring system using a white light interferometer, which has already been used in the inspection and measurement fields of the semiconductor and display industries. And to show better measurement reproducibility. The degree of protrusion of the eyeball was measured 50 times using a system proposed by one subject in 44 eyes of 22 subjects. The error of measurement of the orbital projection using the proposed system is ±0.041㎜, which is more reproducible than the error of ±1.0-1.5㎜ of the conventional manual orbital system. Diagnosis of orbital fracture, thyroid eye disease, orbital tumor, And to evaluate the outcome of surgical treatment.
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ABSTRACT
1. Introduction 1
2. Related Studies 4
2.1. Exophthalmos 4
2.1.1. Exophthalmos 4
2.1.2. Thyroid ophthalmopathy 5
2.2. WSI(White light Scanning Interferometer) 9
3. Existing manual exophthalmometer 12
3.1. Types and principles of manual exophthalmometers 12
3.1.1. Hertel exophthalmometer 12
3.1.2. Naugle exophthalmometer 14
3.2. Reproducibility of manual exophthalmometers 17
4. Proposed a System for Exophthalmos Measurement using a WSI 19
4.1. System overview 19
4.2. System Configuration 20
4.2.1. Measuring unit 20
4.2.2. Mechanical unit 25
4.2.3. Electric unit 27
4.2.4. Control unit 28
5. Experiment and Result and Analysis 30
5.1. Experiment Method 30
5.2. Experiment Results and Analysis 36
6. Conclusion 65
REFERENCE
ABSTRACT (Korean)
