Purpose: To compare the Central Corneal Thickness (CCT) measurements obtained by Ultrasound Pachymeter (USP) & Ultrasound Biomicroscope (UBM). Methods: The study CCT measurements of 60 eyes was measured using first with UBM followed by USP. Results were compared statistically using Bland –Altman plots & Deming’s regression analysis Results: Scatter plot analysis showed that for the same value o...

Fig. 1 (a) MRE wave image and Elastogram (b) UTE spatio-temporal strain map (c) Bland-Altman plot MRE: FOV=14cm,Matrix=256X64,TR/TE=50/26.5ms, flip angle=30 ̊, thickness=10cm, BW=±16kHz, continues vibration=60Hz, average stiffness of ROI drawn on the elastogram was measured as the stiffness of the phantom. UTE: center frequency of transducer=3.5 MHz, transient vibration=20ms (1 cycle of 50 Hz si...

Multiple scattering becomes a problem close to the critical point, especially in systems with a large difference in the refractive index and large correlation length amplitudes as for the case of polystyrene/cyclohexane. In this work we demonstrate the application of the one-beam cross correlation technique and show that in the reduced temperature range of t red51.66310 25 – 0.03 the multiple s...

ABSTRACT In determining rater (instrument) reliability many techniques are available. A main discrimination between methods is made by the level of measurement (binary, categorical, continuous). Most techniques, such as the Mean Absolute Difference (MAD) or the Intraclass Correlation Analysis (ICC), apply to continuous data. Two other analysis methods are equivalence t-tests (quantitatively det...