نتایج جستجو برای: thickness measurement
تعداد نتایج: 541256 فیلتر نتایج به سال:
BACKGROUND/AIMS To determine the reproducibility of the Humphrey optical coherence tomography scanner (OCT), software version 5.0, for measurement of retinal nerve fibre layer (RNFL) thickness in normal subjects and to compare OCT measurements with published histological thickness of the human RNFL. METHODS Three independent measurements were obtained at each session for one eye from 15 norma...
OBJECTIVE The purpose of this report is to describe an automatic real-time system for evaluation of the carotid intima-media thickness (CIMT) characterized by 3 main features: minimal interobserver and intraobserver variability, real-time capabilities, and great robustness against noise. METHODS One hundred fifty carotid B-mode ultrasound images were used to validate the system. Two skilled o...
Time-Delay-Estimation (TDE) has been a topic of interest in many applications in the past few decades. The emphasis of this work is on the application of model-based estimation (MBE) for TDE of ultrasonic signals used in ultrasonic thickness gaging. Ultrasonic thickness gaging is based on precise measurement of the time difference between successive echoes which reflect back from the back wall ...
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