Accurate color measurement methods for medical displays

2007 ◽  
Author(s):  
Anindita Saha ◽  
Hongye Liang ◽  
Aldo Badano ◽  
Edward F. Kelley
Keyword(s):  
Measurement Methods ◽  
Color Measurement ◽  
Medical Displays

Accurate color measurement methods for medical displays

2009 ◽  
Vol 37 (1) ◽  
pp. 74-81 ◽  
Author(s):  
Anindita Saha ◽  
Edward F. Kelley ◽  
Aldo Badano
Keyword(s):  
Measurement Methods ◽  
Color Measurement ◽  
Medical Displays

Color measurement methods for medical displays

2006 ◽  
Vol 14 (11) ◽  
pp. 979 ◽  
Author(s):  
Anindita Saha ◽  
Hongye Liang ◽  
Aldo Badano
Keyword(s):  
Measurement Methods ◽  
Color Measurement ◽  
Medical Displays

scholarly journals Comparison of Visual and Digital Color Measurement Methods on Anterior Natural Teeth

2018 ◽  
Vol 22 (2) ◽  
pp. 87-92
Author(s):  
Sait Ege Eryürük ◽  
Canan Hekimoğlu ◽  
Elif Tuba Akçin ◽  
Yeliz Çavuşoğlu
Keyword(s):  
Weighted Kappa ◽  
Kappa Coefficient ◽  
Measurement Methods ◽  
Color Measurement ◽  
Central Incisor ◽  
Digital Device ◽  
Natural Teeth ◽  
Digital Methods ◽  
Shade Guide ◽  
Weighted Kappa Coefficient

SummaryBackground/Aim: The purpose of this study was to evaluate compatibility between visual and digital color measurement methods.Material and Methods: The color measurement components of intact natural maxillary right central incisor and left canine teeth of eighty patients were measured with visually shade guide and, digitally, with digital device. The color matchings were performed for each teeth on labial surfaces divided into three regions: cervical, middle and incisal. Ligthness, MLR (M: means middle hue, L designates greener, R designates redder) and chroma levels were assessed for each tooth on divided regions respectively. Measurements were performed by the same and experinced dentist with healthy eyes. The data were analyzed with Kappa and weighted Kappa coefficient (p< 0.05).Results: The compatibility between visual and digital methods did not exist for MLR and chroma. The compatibility between both methods were determined only for ligthness of maxillary central and canine teeth at all regions of labial surfaces.Conclusions: There was compatibility only for ligthness of intact natural teeth at all regions with both methods.

scholarly journals Conformity Assessment of Color Measurement Methods

2013 ◽  
Vol 35 (6) ◽  
pp. 442-448 ◽  
Author(s):  
Gwanjo Jeong ◽  
Bumsu Jo ◽  
Mahnshik Song ◽  
Hyeon Park ◽  
Jonggyu Lee ◽  
...  
Keyword(s):  
Measurement Methods ◽  
Conformity Assessment ◽  
Color Measurement

A critical comparison of selected implicit measurement methods.

2018 ◽  
Vol 11 (4) ◽  
pp. 249-266 ◽  
Author(s):  
Judith Znanewitz ◽  
Lisa Braun ◽  
David Hensel ◽  
Claudia Fantapié Altobelli ◽  
Fabian Hattke
Keyword(s):  
Measurement Methods ◽  
Critical Comparison ◽  
Implicit Measurement

Coordinating Medical Literature with Patient Care

1977 ◽  
Vol 16 (04) ◽  
pp. 234-240 ◽  
Author(s):  
Joann Gustafson ◽  
J. Nelson ◽  
Ann Buller
Keyword(s):  
Health Care ◽  
Medical Staff ◽  
Medical Information ◽  
Medical Literature ◽  
Medical Information System ◽  
Staff Members ◽  
Information Displays ◽  
Medical Displays ◽  
Computerized Medical Information ◽  
The Given

The contribution of a special library project to a computerized problem-oriented medical information system (PROMIS) is discussed. Medical information displays developed by the PROMIS medical staff are accessible to the health care provider via touch screen cathode terminals. Under PROMIS, members of the library project developed two information services, one concerned with the initial building of the medical displays and the other with the updating of this information. Information from 88 medical journals is disseminated to physicians involved in the building of the medical displays. Articles meeting predetermined selection criteria are abstracted and the abstracts are made available by direct selective dissemination or via a problem-oriented abstract file. The updating service involves comparing the information contained in the selected articles with the computerized medical displays on the given topic. Discrepancies are brought to the attention of PROMIS medical staff members who evaluate the information and make appropriate changes in the displays. Thus a feedback loop is maintained which assures the completeness, accuracy, and currency of the computerized medical information. The development of this library project and its interface with the computerized health care system thus attempts to deal with the problems in the generation, validation, dissemination, and application of medical literature.

Calibration of a Lyophilized Pooled Plasma as Candidate Reference Plasma for Standardization of the Prothrombin Time Ratio

1993 ◽  
Vol 13 (02) ◽  
pp. 96-105 ◽  
Author(s):  
H. Beeser ◽  
U. Becker ◽  
H. J. Kolde ◽  
E. Spanuth ◽  
P. Witt ◽  
...  
Keyword(s):  
Prothrombin Time ◽  
International Study ◽  
International Normalized Ratio ◽  
Measurement Methods ◽  
Factor V ◽  
Diagnostic Instruments ◽  
Plasma Pool ◽  
Normal Plasma ◽  
German Association ◽  
Prothrombin Time Ratio

SummaryThe prothrombin time (PT), obtained from a fresh normal plasma pool (FPP), is the basis both for the establishment of the 100% activity (normal plasma) and for the ratio calculation used in the International Normalized Ratio (INR) according to the recommendations of the ICSH/ICTH (6). Today the PT of lyophilized normal plasma pools are successfully used as reference for the assessment of samples in proficiency studies. However, a lack of comparability is to be recognized. Therefore the Committee of Hematology of the German Association of Diagnostics’ and Diagnostic Instruments’ Manufacturers (VDGH) decided to produce a candidate reference plasma (VDGH Reference Plasma) which was calibrated against fresh normal plasma pools in an international study.The basic calibration was performed by using the same certified BCR thromboplastin (BCT/099) by all participants. The endpoint was determined manually and by using the coagulometer Schnitger-Gross. In additional testings each participant used his own routine thromboplastins and methods. Calculating the ratio [PT VDGH Reference Plasma (sec)/PT fresh normal plasma pool (sec)] the VDGH Reference Plasma showed a deviation from the average fresh normal plasma pool of 1.05 both with the BCT/099 and with all thromboplastins. There were obtained some statistical differences between “plain” and “combined’’ (added factor V and fibrinogen) thromboplastins. No statistical difference was found between the different endpoint measurement methods (manual, mechanical, optical).In spite of these statistical deviations the VDGH Reference Plasma can be used for the standardization of the PT-normal (100%) value with different ratios for plain (1.06) and combined (1.02) thromboplastins. The manufacturers will use this VDGH Reference Plasma for the calibration of their commercially available calibration plasmas, which allows the user of such a material to calculate a calibrated 100% PT value.

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