The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
Jun Hyung Moon - One of the best experts on this subject based on the ideXlab platform.
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hertel Exophthalmometer versus computed tomography scan in proptosis estimation in thyroid associated orbitopathy
Clinical Ophthalmology, 2019Co-Authors: Na Ri Park, Jun Hyung MoonAbstract:Objective: To compare exophthalmometry measured by Hertel Exophthalmometer versus computed tomography (CT) scan. Methods: For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel Exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims-corneal surface in the axial plane, method 2 used lateral to medial orbital rims-corneal surface in the axial plane, and method 3 used superior to inferior orbital rims-corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values. Results: The Pearson's coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson's coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3. Conclusion: The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.
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Hertel Exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
Clinical Ophthalmology, 2019Co-Authors: Na Ri Park, Jun Hyung MoonAbstract:To compare exophthalmometry measured by Hertel Exophthalmometer versus computed tomography (CT) scan. For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel Exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims-corneal surface in the axial plane, method 2 used lateral to medial orbital rims-corneal surface in the axial plane, and method 3 used superior to inferior orbital rims-corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values. The Pearson's coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson's coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3. The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.
Na Ri Park - One of the best experts on this subject based on the ideXlab platform.
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hertel Exophthalmometer versus computed tomography scan in proptosis estimation in thyroid associated orbitopathy
Clinical Ophthalmology, 2019Co-Authors: Na Ri Park, Jun Hyung MoonAbstract:Objective: To compare exophthalmometry measured by Hertel Exophthalmometer versus computed tomography (CT) scan. Methods: For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel Exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims-corneal surface in the axial plane, method 2 used lateral to medial orbital rims-corneal surface in the axial plane, and method 3 used superior to inferior orbital rims-corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values. Results: The Pearson's coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson's coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3. Conclusion: The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.
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Hertel Exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
Clinical Ophthalmology, 2019Co-Authors: Na Ri Park, Jun Hyung MoonAbstract:To compare exophthalmometry measured by Hertel Exophthalmometer versus computed tomography (CT) scan. For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel Exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims-corneal surface in the axial plane, method 2 used lateral to medial orbital rims-corneal surface in the axial plane, and method 3 used superior to inferior orbital rims-corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values. The Pearson's coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson's coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3. The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.
Arie Y. Nemet - One of the best experts on this subject based on the ideXlab platform.
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Slit-lamp exophthalmometry, a novel technique
Graefe's Archive for Clinical and Experimental Ophthalmology, 2014Co-Authors: Yehoshua Almog, Eli Rosen, Arie Y. NemetAbstract:Purpose Exophthalmometry is clinically important for diagnoses, follow-up, and treatment decision-making. Through the years, several drawbacks and sources of error have been described when using Hertel and other Exophthalmometers. Methods We describe a simple method of non-touch slit-lamp exophthalmometry. Comparing the results between Hertel and slit-lamp exophthalmometry on 60 patients with proptosis showed no statistically significant differences in the two methods. Results A total of 60 consecutive patients with proptosis were included. Thirty-six cases (60 %) were women. Their mean age was 55.6 ± 16.4 (median 57.5, range 20–87) years. Only 5 % of the measurements had more than 2 mm difference between the two techniques. There were no significant differences in the measurements between the two methods. Intra-correlation coefficient is 0.96 for right side and 0.956 for lest side. The Bland–Altman plot revealed good agreement. Conclusions Slit-lamp exophthalmometry offers a simple, easily available, and reliable non-touch technique that does not require an Exophthalmometer.
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Slit-lamp exophthalmometry, a novel technique.
Graefes Archive for Clinical and Experimental Ophthalmology, 2014Co-Authors: Yehoshua Almog, Eli Rosen, Arie Y. NemetAbstract:Purpose Exophthalmometry is clinically important for diagnoses, follow-up, and treatment decision-making. Through the years, several drawbacks and sources of error have been described when using Hertel and other Exophthalmometers.
Yehoshua Almog - One of the best experts on this subject based on the ideXlab platform.
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Slit-lamp exophthalmometry, a novel technique
Graefe's Archive for Clinical and Experimental Ophthalmology, 2014Co-Authors: Yehoshua Almog, Eli Rosen, Arie Y. NemetAbstract:Purpose Exophthalmometry is clinically important for diagnoses, follow-up, and treatment decision-making. Through the years, several drawbacks and sources of error have been described when using Hertel and other Exophthalmometers. Methods We describe a simple method of non-touch slit-lamp exophthalmometry. Comparing the results between Hertel and slit-lamp exophthalmometry on 60 patients with proptosis showed no statistically significant differences in the two methods. Results A total of 60 consecutive patients with proptosis were included. Thirty-six cases (60 %) were women. Their mean age was 55.6 ± 16.4 (median 57.5, range 20–87) years. Only 5 % of the measurements had more than 2 mm difference between the two techniques. There were no significant differences in the measurements between the two methods. Intra-correlation coefficient is 0.96 for right side and 0.956 for lest side. The Bland–Altman plot revealed good agreement. Conclusions Slit-lamp exophthalmometry offers a simple, easily available, and reliable non-touch technique that does not require an Exophthalmometer.
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Slit-lamp exophthalmometry, a novel technique.
Graefes Archive for Clinical and Experimental Ophthalmology, 2014Co-Authors: Yehoshua Almog, Eli Rosen, Arie Y. NemetAbstract:Purpose Exophthalmometry is clinically important for diagnoses, follow-up, and treatment decision-making. Through the years, several drawbacks and sources of error have been described when using Hertel and other Exophthalmometers.
Maarten P Mourits - One of the best experts on this subject based on the ideXlab platform.
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Reliability of exophthalmos measurement and the exophthalmometry value distribution in a healthy Dutch population and in Graves' patients. An exploratory study
Orbit, 2020Co-Authors: Maarten P Mourits, S.h.c. Lombardo, F.a. Van Der Sluijs, S. FentonAbstract:AIM The purpose of this study was to test the reliability of an Exophthalmometer commonly used in the Netherlands; to determine the exophthalmometry value distribution with this instrument and to assess the upper exophthalmometry limits of normal in a healthy, adult, Caucasian, Dutch population. Furthermore, to assess the effects of gender and age on exophthalmometry readings in this group and in a group of Graves' patients by comparing healthy, adult, Caucasian, Dutch individuals with adult, Caucasian, Dutch Graves' patients. METHODS To test the reliability of our Hertel Exophthalmometer, we determined the interobserver variation between two observers by measuring 160 eyes in healthy, adult, Caucasian, Dutch females and males (10 females and 10 males in each decade between 20 and 60 years of age). These data were also used for the assessment of the Hertel value distribution and for defining the upper limits of normal in these individuals by logistic regression analysis. The effects of disease, age and ge...
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parallax free exophthalmometry a comprehensive review of the literature on clinical exophthalmometry and the introduction of the first parallax free Exophthalmometer
Orbit, 2015Co-Authors: Stijn W Genders, Daphne L Mourits, Mohammad Jasem, Roel Kloos, Peerooz Saeed, Maarten P MouritsAbstract:Purpose: To present the first parallax-free Exophthalmometer design. Background: Exophthalmometry is an important clinical tool. We provide a historic overview of clinical Exophthalmometer designs, and we review current problems encountered in exophthalmometry. Methods: We present a new and parallax-free Exophthalmometer design that we have evaluated in 49 patients visiting our orbital clinic. Results: The mean age of the patients was 49.8 years and 72% were female. The Pearson interobserver variation was 0.97, and 94% of the Hertel values measured by the two observers were within the limits (1.6 mm) of agreement. Conclusion: This meter appears to be a reliable instrument for exophthalmometry. It is the first instrument that allows for a complete parallax-free measurement.
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effect of Exophthalmometer design on its accuracy
Ophthalmic Plastic and Reconstructive Surgery, 2005Co-Authors: Yoav Vardizer, Tos T J M Berendschot, Maarten P MouritsAbstract:Purpose: To investigate the effect of the design of different Exophthalmometers on their measurement accuracy. Methods: Eight different Exophthalmometers were tested with a specially developed calibrator by experienced orbital surgeons. Results: Exophthalmometers with one mirror and a straight footplate were found to be more accurate than others. One-mirror Exophthalmometers were less accurate when assessing low ( = 23 mm) exophthalmometric values. Conclusions: The design of an Exophthalmometer affects its accuracy