Panorama-Ultraschall des Wirbelkanals mit Höhenlokalisation des Konus medullaris bei Neugeborenen und Säuglingen

Staatz, Gundula; Hübner, D; Je, Wildberger; Rw, Günther

doi:10.1055/s-2007-1011092

Cited by 8 publications

(1 citation statement)

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“…3-Scape ist eine Erweiterung der Panorama-Bildverfahren SieScape TM und ColorSieScape TM [16,17]. Spezielle 3D-Schallköpfe und/oder externe Positionsgeber werden nicht benötigt.…”

Section: Technische Grundlagen Dreidimensionalen Power-doppler-ultrasunclassified

Vergleich zwischen 3D-Power-Doppler-Ultraschall, farbkodierte Duplexsonographie und digitaler Subtraktionsangiographie bei Karotisstenosen

Keberle¹,

Jenett²,

Wittenberg³

et al. 2001

Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr

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“…3-Scape ist eine Erweiterung der Panorama-Bildverfahren SieScape TM und ColorSieScape TM [16,17]. Spezielle 3D-Schallköpfe und/oder externe Positionsgeber werden nicht benötigt.…”

Section: Technische Grundlagen Dreidimensionalen Power-doppler-ultrasunclassified

Vergleich zwischen 3D-Power-Doppler-Ultraschall, farbkodierte Duplexsonographie und digitaler Subtraktionsangiographie bei Karotisstenosen

Keberle¹,

Jenett²,

Wittenberg³

et al. 2001

Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr

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Potential of three-dimensional ultrasound in neonatal and paediatric neurosonography

et al. 2003

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The aim of this study was to describe the potential of three-dimensional ultrasound (3D US) in paediatric and neonatal neurosonography. The potential applications are illustrated based on our experience in 150 patients using three different 3D US techniques at two different sites. Various disease entities throughout the paediatric age have been evaluated. The potential of 3D US, including 3D US of the cerebral vessels based on colour Doppler data, is discussed based on comparison with conventional 2D US or other imaging (as available), and with regard to the literature. In our experience, 3D US is feasible in neonatal and paediatric neurosonography. It reduces imaging time, improves demonstration of complex anatomy and vasculature, and allows for evaluation of anatomy/pathology in any plane. The 3D US furthermore improves volume assessment (e.g. in hydrocephalus), and comparison with CT, MRI and during follow-up, with a potentially improved standardisation and documentation. The 3D US additionally offers an ideal modality for training and education, as the brain and the neonatal spine can be virtually rescanned at the workstation. Yet, limitations such as areas inaccessible to 2D US, limited resolution and motion artefacts have to be acknowledged. Three-dimensional US has the potential to become a valuable additional imaging tool in paediatric neurosonography.

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Automatic feature extraction and matching modelling for highly noise near-equatorial satellite images

Dibs

Hasab

Jaber

et al. 2021

Innov. Infrastruct. Solut.

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Feature extraction plays an important role in pattern recognition because band-to-band registration and geometric correction from different satellite images have linear image distortion. However, new near-equatorial orbital satellite system (NEqO) images is different because they have nonlinear distortion. Conventional techniques cannot overcome this type of distortion and lead to the extraction of false features and incorrect image matching. This research presents a new method by improving the performance of the Scale-Invariant Feature Transformation (SIFT) with a significantly higher rate of true extracted features and their correct matching. The data in this study were obtained from the RazakSAT satellite covering a part of Penang state, Malaysia. The method consists of many stages: image band selection, image band compression, image sharpening, automatic feature extraction, and applying the sum of absolute difference algorithm with an experimental and empirical threshold. We evaluate a refined features scenario by comparing the result of the original extracted SIFT features with corresponding features of the proposed method. The result indicates accurate and precise performance of the proposed method from removing false SIFT extracted features of satellite images and remain only true SIFT extracted features, that leads to reduce the extracted feature from using three frame size: (1) from 2000 to 750, 552 and 92 for the green and red bands image, (2) from 678 extracted control points to be 193, 228 and 73 between the green and blue bands, and (3) from 1995 extracted CPs to be 656, 733, and 556 between the green and near-infrared bands, respectively.

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Panorama-Ultraschall des Wirbelkanals mit Höhenlokalisation des Konus medullaris bei Neugeborenen und Säuglingen

Abstract: Panoramic ultrasound offers nearly complete visualization of the spinal canal in children on one single extended field of view image. The conus medullaris level and the tip of the dural sac can easily be localized.

Cited by 8 publications

References 0 publications

Vergleich zwischen 3D-Power-Doppler-Ultraschall, farbkodierte Duplexsonographie und digitaler Subtraktionsangiographie bei Karotisstenosen

Vergleich zwischen 3D-Power-Doppler-Ultraschall, farbkodierte Duplexsonographie und digitaler Subtraktionsangiographie bei Karotisstenosen

Potential of three-dimensional ultrasound in neonatal and paediatric neurosonography

Automatic feature extraction and matching modelling for highly noise near-equatorial satellite images

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