Surface Extraction Using SVM-Based Texture Classification for 3D Fetal Ultrasound Imaging

2006 ◽  
Author(s):  
Tien Dung Nguyen ◽  
Sang Hyun Kim ◽  
Nam Chul Kim
Keyword(s):  
Ultrasound Imaging ◽  
Texture Classification ◽  
Fetal Ultrasound ◽  
Surface Extraction

Postnatal ultrasound follow-up in neonates with prenatal hydronephrosis

Diagnosis ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Elham Kebriyaei ◽  
Ali Davoodi ◽  
Seyed Alinaghi Kazemi ◽  
Zahra Bazargani
Keyword(s):  
Ultrasound Imaging ◽  
Maternal Education ◽  
Left Kidney ◽  
Ultrasound Images ◽  
Fetal Ultrasound ◽  
Renal Anomalies ◽  
Cross Sectional ◽  
Fetal Hydronephrosis ◽  
Kidney Involvement

Abstract Objectives Renal anomalies are the most common fetal abnormalities that occur during prenatal development, and are typically detected by observing hydronephrosis on fetal ultrasound imaging. Follow-up with post-natal ultrasound is important to detect clinically-important obstruction, because many of the pre-natal abnormalities resolve spontaneously. This study aimed to evaluate the postnatal hydronephrosis follow-up rate, and reasons for non follow-up in affected neonates. Methods In this cross-sectional study all neonates born during a period of one year at Ayatollah Mousavi Hospital with hydronephrosis on fetal ultrasound imaging were recruited. All mothers were also given face-to-face information about fetal hydronephrosis and its postnatal outcomes, and follow-up with at least a postnatal ultrasound was recommended from the fourth day of their neonates’ birth until the end of the fourth week. The neonates were subsequently observed for one month to determine the postnatal ultrasound follow-up rate and to reflect on diagnostic test results, reasons for failure to follow-up, as well as causes of hydronephrosis. Results In this study, 71 cases (1.2%) out of 5,952 neonates had fetal hydronephrosis on prenatal ultrasound images. The postnatal ultrasound imaging showed kidney involvement in 18 neonates (25%), particularly in the left kidney (61.1%). Seven neonates had no follow-up at one month (10%). No significant relationship was found between lack of follow-up and the neonates’ place of residence (p=0.42), maternal education (p=0.90), number of siblings (p=0.33), or gender (p=0.64). Conclusions Postnatal ultrasound follow-up rate in these neonates with a history of fetal hydronephrosis was incomplete even though parents had been provided with education and advice at their birth time. Accordingly, it is recommended to perform postnatal ultrasound once neonates are discharged from hospitals.

scholarly journals Weakly Supervised Estimation of Shadow Confidence Maps in Fetal Ultrasound Imaging

2019 ◽  
Vol 38 (12) ◽  
pp. 2755-2767 ◽  
Author(s):  
Qingjie Meng ◽  
James Housden ◽  
Jacqueline Matthew ◽  
Daniel Rueckert ◽  
Julia A. Schnabel ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Fetal Ultrasound ◽  
Weakly Supervised

scholarly journals Results of Fetal Ultrasound Imaging and Doppler Ultrasound Study in Pregnant Women with Extragenital Pathology

2018 ◽  
Vol 8 (3) ◽  
pp. 206-212
Author(s):  
Agamurad Orazmuradov ◽  
◽  
Setonde Romeo Konnon ◽  
Maya Khubetsova ◽  
Anastasia Minaeva ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Doppler Ultrasound ◽  
Ultrasound Imaging ◽  
Fetal Ultrasound ◽  
Ultrasound Study

scholarly journals Noise diminution in Fetal Ultrasound Pictures

2017 ◽  
Vol 4 (2) ◽  
pp. 5-8
Author(s):  
Michael R ◽  
Ibrahim M
Keyword(s):  
Wavelet Transform ◽  
Ultrasound Imaging ◽  
Input Image ◽  
The Other ◽  
Ultrasound Images ◽  
Fetal Ultrasound ◽  
Undecimated Wavelet Transform ◽  
Directional Filter ◽  
Undecimated Wavelet

This study offers an inventive way to decrease the stain sound which linked with the ultrasound imaging. This in revolve leads to humanizing the input image and raise the human analytical presentation. It uses an Undecimated Wavelet Transform UWT to decay the image signal to the coefficients, to take the oblique coefficient and applied Independent Directional Mask after replacing the value of each pixel in this coefficient with the comparable pixel in the innovative image, this result yields after applying middle filter in container the value of the pixel is smaller than the entrance value which is pre-specified. We suitable the Directional filter and transmit the design of the new oblique coefficient, and then make the converse wavelet renovate to form the resulting image after dropping the sound of it. The method showed a clear enhancement on numerous ultrasound images via conventional arithmetical measurements and outperformed the other methods which used in common to diminish the noise.

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