Differences in mean grey levels of uterine ultrasonographic images between non-pregnant and pregnant ewes may serve as a tool for early pregnancy diagnosis

Akbulut, Neffel Kürşat; Çelik, Hacı Ahmet

doi:10.1016/j.anireprosci.2021.106716

Cited by 11 publications

(2 citation statements)

References 15 publications

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“…Ji et al [18] extracted the color space of the branch images, the gray-value difference were analyze and the apple branches were segmented from the original images by the iterative threshold. Akbulut et al [19] analyzed the ultrasound images of the non-pregnant and pregnant ewes, and proposed that the average gray value (MGL) of ultrasound images can be used to distinguish non-pregnant or pregnant ewes. In this study, it is a new attempt to select key wavelengths of hyperspectral image by using the gray-value difference of images (GDI) at some specific wavelengths.…”

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confidence: 99%

Feature Wavelength Selection Based on the Combination of Image and Spectrum for Aflatoxin B1 Concentration Classification in Single Maize Kernels

2022

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Aflatoxin B1 (AFB1) is a very strong carcinogen, maize kernels are easily infected by this toxin during storage. Rapid and accurate identification of AFB1 is of great significance to ensure food safety. In this study, a novel method for classification of AFB1 in single maize kernels was developed. Four groups of maize kernel samples with different AFB1 concentrations (10, 20, 50, and 100 ppb) were prepared by artificial inoculation of toxin. In addition, one group of maize kernel samples without AFB1 were prepared as control, each group with 70 samples. The visible and short wave near-infrared (Vis-SWNIR) region (500–1000 nm) and long wave near-infrared (LWNIR) region (1000–2000 nm) hyperspectral images of all samples were obtained respectively, and the hyperspectral images in 500–2000 nm range was obtained after spectral pretreatment and fusion. Kennard-Stone algorithm was used to divide the samples into calibration set or prediction set. Competitive adaptive reweighted sampling (CARS) and successive projections algorithm (SPA) were used to roughly select the characteristic wavelengths of the calibration set samples, and 25 and 26 effective wavelengths were obtained respectively. Based on the roughly selected wavelengths, a method of fine selection of the characteristic wavelengths was proposed by using the gray-value difference of image (GDI), and a few number of characteristic wavelengths were further selected. Under the LDA classification model, 10 characteristic wavelengths were selected to test the prediction set and the independent verification samples, and the ideal result were obtained with an accuracy of 94.46% and 91.11%, respectively. This study provides a new approach for AFB1 concentration classification of single maize kernels.

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Section: Introductionmentioning

confidence: 99%

Feature Wavelength Selection Based on the Combination of Image and Spectrum for Aflatoxin B1 Concentration Classification in Single Maize Kernels

2022

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“…The ultrasonography is a non‐invasive technique used to diagnose fibrinous deposits on the reticulum (Braun et al, 1993; Kaske et al, 1994; Khalphallah et al, 2017) as well as intestinal adhesions (Tucker et al, 1996) and is also capable of identifying the inflammatory changes (Khalphallah et al, 2017). The ultrasound image interpretation may be strengthened by computer‐assisted analysis based on mean pixel values (MPV) of ultrasound images (Akbulut & Celik, 2021).…”

Section: Introductionmentioning

confidence: 99%

Ultrasonographic diagnosis of adhesions, quantification of uterine wall and managerial perspectives of uterine torsion in buffaloes

Sutaria

Chaudhari

Sutaria

2022

Reprod Domestic Animals

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The present study aimed to diagnose uterine adhesion using ultrasonography to decide the treatment approach for better survival of buffaloes suffering from uterine torsion. The peculiar visceral slide against the other abdominal organs induced by breathing was considered an absence of uterine adhesion, while the total absence of visceral slide was considered the presence of uterine adhesions on ultrasonographic examination. The 59 Mehsana buffaloes suffering from uterine torsion were divided into two groups based on the presence (Group I; n = 27) or absence (group II; n = 32) of adhesions. The mean pixel values (MPV) and thickness of uterine wall were also quantified in both the groups. In group I, severe type adhesions (n = 16/27) were directly subjected to caesarean section (CS), while fibrinous adhesions (n = 11/27) were subject to rolling by Sharma's modified Schaffer's method, and if rolling failed were further, subjected to CS and adhesions were confirm during CS. In Group II, 28 buffaloes were subjected to rolling by Sharma's modified Schaffer's method and 4 buffaloes were directly subjected to CS because of longer duration of illness (≥3 days), higher degree (≥180°) and previous field handling. The incidence of adhesions was 45.76 per cent (27/59) in buffaloes with uterine torsion. The degenerative changes such as oedematous (hyperoedema-hypoechoic with anechoic trabeculae) or thin (homogenous hypoechoic), sloughing of serosa and wall separation were observed in the uterine wall. The significantly thinner uterine wall (p = .017) and higher MPV (p = .001) were evident in group I than in group II. The weak negative non-significant correlation between uterine wall thickness and MPV was observed in group I (r = −.250, p = .147) and group II (r = −.235, p = .089). The dam survival rate was 48.15 per cent (13/27) in group I and 81.25% (26/32) in group II. There was a significant (p = .04) association between the treatment approach and dam survival. Ultrasonography has synergistic diagnostic value for uterine adhesions by evaluating uterine surfaces beyond the reach of obstetricians during a manual clinical examination. Thereby, avoiding futile efforts to relieve uterine torsion by rolling might help to improve dam survival by planning a better obstetrical manoeuvre to salvage buffaloes suffering from uterine torsion.

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Effect of post-mating administration of ketoprofen on serum progesterone concentration and fertility in Akkaraman ewes

Kal,

Güler

2024

Trop Anim Health Prod

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Differences in mean grey levels of uterine ultrasonographic images between non-pregnant and pregnant ewes may serve as a tool for early pregnancy diagnosis

Cited by 11 publications

References 15 publications

Feature Wavelength Selection Based on the Combination of Image and Spectrum for Aflatoxin B1 Concentration Classification in Single Maize Kernels

Feature Wavelength Selection Based on the Combination of Image and Spectrum for Aflatoxin B1 Concentration Classification in Single Maize Kernels

Ultrasonographic diagnosis of adhesions, quantification of uterine wall and managerial perspectives of uterine torsion in buffaloes

Effect of post-mating administration of ketoprofen on serum progesterone concentration and fertility in Akkaraman ewes

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