scholarly journals Distraction index measurement on the dog's hip joint using a dedicated software

2020 ◽  
Vol 72 (4) ◽  
pp. 1241-1247 ◽  
Author(s):  
S. Alves-Pimenta ◽  
A. Santana ◽  
J. Martins ◽  
B. Colaço ◽  
L. Gonçalves ◽  
...  
Keyword(s):  
Computer Software ◽  
Software Tool ◽  
Measurement Tool ◽  
Specific Training ◽  
Hip Joints ◽  
Index Measurement ◽  
Analysis Center ◽  
Good Repeatability ◽  
Repeatability And Reproducibility ◽  
Measurement Repeatability

ABSTRACT The aim of this study was to test the accuracy of a new automated computer software tool for the assessment of passive hip laxity. The hip laxity was estimated using the dedicated computer software by two blinded evaluators, one previously trained and one without specific training for distraction index measurement, in two independent sessions using 230 hip joints from 115 dogs that underwent screening for passive hip laxity using the distraction view. Previously, all of these radiographs were sent to PennHIP Analysis Center for an official distraction index record. The measurement repeatability of the two sessions was adequate for both evaluators. The reproducibility of the official distraction index measurement, mean distraction index±standard deviation 0.44±0.15, was adequate (P>0.05) for the trained evaluator, 0.44±0.15, and non-adequate (P<0.05), for the non-trained evaluator 0.47±0.17. The distraction index measurement tool proposed can be used with confidence for hip laxity evaluation by trained evaluators, as it provided good repeatability and reproducibility of official reports. The simplicity of the process described leads to a less time-consuming and more affordable procedure.

Repeatability and reproducibility of distraction indices in Pennhip examinations of the hip joint in dogs

2006 ◽  
Vol 54 (3) ◽  
pp. 387-392 ◽  
Author(s):  
M. M. D. Ginja ◽  
A. J. A. Ferreira ◽  
M. Silvestre ◽  
J. M. Gonzalo-Orden ◽  
M. P. Llorens-Pena
Keyword(s):  
Confidence Interval ◽  
Correlation Coefficient ◽  
Hip Joint ◽  
Measurement Method ◽  
Intraclass Correlation ◽  
Computer Software ◽  
Hip Joints ◽  
Measurement Session ◽  
Analysis Center ◽  
Repeatability And Reproducibility

Repeatability and reproducibility of Distraction Index (DI) measurements in the PennHIP method were evaluated in 100 dogs. The PennHIP distraction views sent to the PennHIP Analysis Center (PAC) were duplicated, digitalised, and identified with a code, and an adequate computer software was used for DI measurements. One examiner performed two DI measurement sessions, evaluating individually 200 hip joints. The scoring repeatability and reproducibility were estimated calculating the Intraclass Correlation Coefficient (ICC) between the two DI measurement sessions and between the second DI measurement session and the DI in PAC reports, respectively. The ICC for repeatability was 0.97 [95% confidence interval (CI), 0.96 to 0.98], and the ICC for reproducibility was 0.95 (95% CI, 0.93 to 0.96). The results suggest that the DI measurement method described is repeatable and can reproduce the PAC reports with confidence. Distraction indices measured in different PennHIP studies, using this DI measurement method and performed by trained researchers, can be considered interchangeable.

scholarly journals Interchangeability of light and virtual microscopy for histopathological evaluation of prostate cancer

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Renata Zelic ◽  
Francesca Giunchi ◽  
Luca Lianas ◽  
Cecilia Mascia ◽  
Gianluigi Zanetti ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Virtual Microscopy ◽  
Observer Agreement ◽  
Gleason Grade ◽  
Gleason Grading ◽  
Gleason Pattern ◽  
Inter Observer Variability ◽  
Histopathological Evaluation ◽  
Good Repeatability ◽  
Repeatability And Reproducibility

AbstractVirtual microscopy (VM) holds promise to reduce subjectivity as well as intra- and inter-observer variability for the histopathological evaluation of prostate cancer. We evaluated (i) the repeatability (intra-observer agreement) and reproducibility (inter-observer agreement) of the 2014 Gleason grading system and other selected features using standard light microscopy (LM) and an internally developed VM system, and (ii) the interchangeability of LM and VM. Two uro-pathologists reviewed 413 cores from 60 Swedish men diagnosed with non-metastatic prostate cancer 1998–2014. Reviewer 1 performed two reviews using both LM and VM. Reviewer 2 performed one review using both methods. The intra- and inter-observer agreement within and between LM and VM were assessed using Cohen’s kappa and Bland and Altman’s limits of agreement. We found good repeatability and reproducibility for both LM and VM, as well as interchangeability between LM and VM, for primary and secondary Gleason pattern, Gleason Grade Groups, poorly formed glands, cribriform pattern and comedonecrosis but not for the percentage of Gleason pattern 4. Our findings confirm the non-inferiority of VM compared to LM. The repeatability and reproducibility of percentage of Gleason pattern 4 was poor regardless of method used warranting further investigation and improvement before it is used in clinical practice.

scholarly journals KECERDASAN BUATAN MANUSIA (ARTIFICIAL INTELLIGENCE); TEKNOLOGI IMPIAN MASA DEPAN

2018 ◽  
Vol 9 (2) ◽  
pp. 257-274
Author(s):  
Ririen Kusumawati
Keyword(s):  
Artificial Intelligence ◽  
Information Technology ◽  
Human Brain ◽  
Computer Technology ◽  
Computer Software ◽  
Software Tool ◽  
Human Form ◽  
Natural Approach ◽  
Collaborative Art ◽  
Software And Hardware

The computer technology has incredibly increased. Computer software and hardware compete to meet the customer's needs. The research intends to spread the knowledge of information technology, specifically, on the artificial intelligence. The concept of artificial intelligence is adopting and imitating human form, character, and habit which to be implemented on the computer. Using natural approach, the research aims to investigate whether artificial intelligence (AI) will produce the duplication of God's creation. Another important reason of other reseaches on AI is to create a computer which is smart and able to understand human brain working system. Hence, AI has been designed into more practical with faster CPU, cheaper mass memory, and sophisticated software tool. The concept of integrating AI science or collaborative art among sub-fields of technology will stimulate and lead to further AI researches, and it will be an interesting topic for AI researchers for developing AI technology in the future.

scholarly journals Determination of Cr (VI) Content in Water-Soluble Dyes

2020 ◽  
Vol 59 (1) ◽  
pp. 88-94
Author(s):  
M P Sathianarayanan ◽  
Rina Nayak ◽  
Yogesh Hande
Keyword(s):  
Spectroscopic Analysis ◽  
Extraction Procedure ◽  
Cost Effective ◽  
High Load ◽  
Water Soluble ◽  
Recovery Study ◽  
Good Repeatability ◽  
Repeatability And Reproducibility ◽  
Standard Solution

Abstract Hexavalent chromium detection in the presence of high load of colorants is a challenge, and it is an important area of study. Colorants are a class of interfering substance in many spectroscopic analysis and chromatographic separation and detection. In this study, a method has been developed to separate out Cr (VI) and water-soluble dyes by using activated charcoal as an absorption medium. The extraction procedure was optimized with Cr (VI) standard solution for quantification. The efficacy of the extraction procedure for the removal of water-soluble dyes and detection of Cr (VI) was checked with a spike recovery study. Based on the spike recovery study, the method has been validated as per the international validation protocol. The method is simple, cost effective and has a detection limit down up to 3.0 mg/kg. The recovery rate of Cr (VI) in water-soluble dyes like reactive yellow HE 6G, reactive red 218, turquoise blue HGN, reactive navy blue RX and reactive black 5A was found to be more than 90% with a good repeatability and reproducibility.

Microwave Oven Drying Determination of Total Solids in Processed Tomato Products: Collaborative Study

1985 ◽  
Vol 68 (6) ◽  
pp. 1081-1083
Author(s):  
Henry B Chin ◽  
John R Kimball ◽  
Joyce Hung ◽  
Bradford Allen
Keyword(s):  
Collaborative Study ◽  
Microwave Oven ◽  
Drying Method ◽  
Vacuum Oven ◽  
Oven Drying ◽  
Total Solids ◽  
Good Repeatability ◽  
Repeatability And Reproducibility ◽  
Tomato Products ◽  
Solids Content

Abstract Fourteen laboratories analyzed 7 samples of tomato products with total solids content ranging from 6.5 to 40.2%. Samples were analyzed directly with the exception of samples with solids contents greater than 15%, which were diluted with water (1 + 1 for up to 30% solids and 1 + 3 for greater than 30% solids). The 2-4 g samples were dried at 100% power for 4 min. The results of the collaborative study showed good repeatability and reproducibility: 5„ = 0.16 (CV = 0.46%) and S, = 0.36 (CV = 1.06%) for the higher solids samples and S„ = 0.37 (CV = 3.76%) and Sx = 0.14 (CV = 1.41%) for samples with total solids up to 15%. Results were compared with those obtained using vacuum oven drying. No difference was seen in the results by the 2 methods at the 95% level of confidence. The microwave oven drying method has been adopted official first action as an alternative to the vacuum oven drying method for total solids.

Technical Repeatability and Reproducibility of the Stress Radiographs Performed with the Vezzoni-Modified Badertscher Hip Distension Device

2019 ◽  
Vol 32 (01) ◽  
pp. 067-072 ◽  
Author(s):  
Lieve De Rycke ◽  
Aldo Vezzoni ◽  
Ingeborgh Polis ◽  
Jimmy Saunders ◽  
Bart Broeckx ◽  
...  
Keyword(s):  
Clinical Significance ◽  
Hip Joint ◽  
Evaluation Method ◽  
Limits Of Agreement ◽  
Stress Radiographs ◽  
Technical Reproducibility ◽  
Repeatability And Reproducibility ◽  
Measurement Repeatability

Objective The aim of this study was to evaluate the repeatability and reproducibility of the radiographical stress technique using the Vezzoni-modified Badertscher distension device (VMBDD). Materials and Methods Stress radiographs of 10 dogs obtained with the VMBDD were performed consecutively by two different operators and then measured twice by a third veterinarian. The technical repeatability was first assessed individually for the two operators who took the stress radiographs, followed by the technical reproducibility. The obtained variances were used to calculate the 95% limits of agreement for the measurement repeatability, the technical repeatability and the technical reproducibility. Results Both the technical repeatability and reproducibility of the VMBDD technique were good, with the 95% limits of agreement of the measurement repeatability and technical repeatability equalling ± 0.07 overall, and the 95% limits of agreement of the technical reproducibility being ± 0.09. Clinical Significance These results, in combination with the previous results for the measurement of the laxity index, support the use of the VMBDD as a reliable in-house evaluation method to assess the hip joint by trained clinicians. For screening purposes, however, we suggest to limit the number of evaluators, to limit the variability.

Automation of CMOS technology migration illustrated by RGB to YCrCb analogue converter

2013 ◽  
Vol 21 (3) ◽  
Author(s):  
M. Naumowicz ◽  
M. Melosik ◽  
P. Katarzynski ◽  
A. Handkiewicz
Keyword(s):  
Computer Software ◽  
Image Data ◽  
Software Tool ◽  
Current Mode ◽  
Cmos Technology ◽  
Simulation Software ◽  
Vision Sensor ◽  
Colour Space ◽  
Technology Migration

AbstractThe paper illustrates a practical example of technology migration applied to the colour space converter realized in CMOS technology. The element has analogue excitation and response signals expressed in current mode. Such converter may be incorporated into an integrated vision sensor for preconditioning acquired image data. The idea of a computer software tool supporting the automated migration and design reuse is presented as the major contribution. The mentioned tools implement the Hooke-Jeeves direct search method for performing the multivariable optimization. Our purpose is to ensure transferring the circuit between usable fabrication technologies and preserving its functional properties. The colour space converter is treated as the case study for performance evaluation of the proposed tool in cooperation with HSPICE simulation software. The original CMOS technology files for Taiwan semiconductor (TSMC) plant were utilized for the research. The automated design migration from 180 nm into 90 nm resulted with obtaining compact IC layout characterized by a smaller area and lower power consumption. The paper is concluded with a brief summary that proves the usability of the proposed tool in designing CMOS cells dedicated for low power image processing.

A Computer Software Tool for Comprehensive Plan Quality Evaluation

2013 ◽  
Vol 87 (2) ◽  
pp. S620
Author(s):  
D. Yang ◽  
J. Tan ◽  
L. Appenzoller ◽  
H. Li ◽  
B. Sun ◽  
...  
Keyword(s):  
Quality Evaluation ◽  
Computer Software ◽  
Software Tool ◽  
Plan Quality ◽  
Comprehensive Plan

scholarly journals Repeatability and reproducibility of deep-learning-based liver volume and Couinaud segment volume measurement tool

2021 ◽  
Author(s):  
Amirkasra Mojtahed ◽  
Luis Núñez ◽  
John Connell ◽  
Alessandro Fichera ◽  
Rowan Nicholls ◽  
...  
Keyword(s):  
Liver Volume ◽  
Future Liver Remnant ◽  
Measurement Tool ◽  
Limits Of Agreement ◽  
Liver Remnant ◽  
Total Liver Volume ◽  
Medical Software ◽  
Segment Volume ◽  
Volume Measurements ◽  
Repeatability And Reproducibility

Abstract Purpose Volumetric and health assessment of the liver is crucial to avoid poor post-operative outcomes following liver resection surgery. No current methods allow for concurrent and accurate measurement of both Couinaud segmental volumes for future liver remnant estimation and liver health using non-invasive imaging. In this study, we demonstrate the accuracy and precision of segmental volume measurements using new medical software, Hepatica™. Methods MRI scans from 48 volunteers from three previous studies were used in this analysis. Measurements obtained from Hepatica™ were compared with OsiriX. Time required per case with each software was also compared. The performance of technicians and experienced radiologists as well as the repeatability and reproducibility were compared using Bland–Altman plots and limits of agreement. Results High levels of agreement and lower inter-operator variability for liver volume measurements were shown between Hepatica™ and existing methods for liver volumetry (mean Dice score 0.947 ± 0.010). A high consistency between technicians and experienced radiologists using the device for volumetry was shown (± 3.5% of total liver volume) as well as low inter-observer and intra-observer variability. Tight limits of agreement were shown between repeated Couinaud segment volume (+ 3.4% of whole liver), segmental liver fibroinflammation and segmental liver fat measurements in the same participant on the same scanner and between different scanners. An underestimation of whole-liver volume was observed between three non-reference scanners. Conclusion Hepatica™ produces accurate and precise whole-liver and Couinaud segment volume and liver tissue characteristic measurements. Measurements are consistent between trained technicians and experienced radiologists. Graphic abstract

Repeatability and reproducibility of corneal biomechanical parameters derived from Corvis ST

2019 ◽  
Vol 30 (6) ◽  
pp. 1287-1294
Author(s):  
Nermin Serbecic ◽  
Sven Beutelspacher ◽  
Lovro Markovic ◽  
Abhijit Sina Roy ◽  
Rohit Shetty
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Coefficient Of Variation ◽  
Intraclass Correlation ◽  
Diurnal Changes ◽  
Good Reliability ◽  
Good Repeatability ◽  
Repeatability And Reproducibility ◽  
Biomechanical Parameters ◽  
High Intraclass Correlation Coefficient

Introduction: The aim of this study was to evaluate repeatability and reproducibility of newly calculated biomechanical parameters of the cornea, developed by our research group. Methods: One eye from each of the 23 healthy subjects was measured three times consecutively, three times at different daytimes and on three different days. The within-subject standard deviation and coefficient of variation, as well as the intraclass correlation coefficient, were calculated for every parameter in each group. Results: Excellent repeatability and reproducibility (coefficient of variation < 5%, intraclass correlation coefficient > 0.75) was found for corrected values measured at A1, HC, and A2 time points (2nd A2 Time, 2nd A1 Time, 2nd HC Time, 2nd HC Def Amp and 2nd A1 Def Amp). Corneal-specific stiffness parameters, which showed good repeatability and reliability, were DA_cor (coefficient of variation = 4.02%, intraclass correlation coefficient = 0.919), KcLinear (coefficient of variation = 4.03%, intraclass correlation coefficient = 0.895), areaForceCornea (coefficient of variation = 3.34%, intraclass correlation coefficient = 0.853) and E2 (coefficient of variation = 4.1%, intraclass correlation coefficient = 0.78). Overall, most parameters fell into the category of good reliability (high intraclass correlation coefficient) and poor reproducibility (low coefficient of variation), including all the parameters describing extraocular deformation (DA_ext, AEPvED, AUC EDef, areaForceExtra, Kg and μg). Comparing the coefficient of variation values for intrasession, intersession and daytime measurements, there were no indices for diurnal changes. Conclusion: Most parameters showed good repeatability and reliability. The extraocular stiffness parameters showed poor reproducibility. KcLinear can serve as a very reliable and repeatable indicator of corneal stiffness.

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