2015
DOI: 10.1007/s11548-015-1202-5
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Real-time ultrasound image classification for spine anesthesia using local directional Hadamard features

Abstract: A real-time machine learning system based on the local directional Hadamard features extracted by the sequency-ordered Hadamard transform for detecting the laminae and facet joints in ultrasound images has been proposed. The system has the potential to assist the anesthesiologists in quickly finding the target plane for epidural steroid injections and facet joint injections.

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Cited by 23 publications
(21 citation statements)
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“…Two recent studies, namely Pesteie et al ( 2015 ) and Hetherington et al ( 2017 ), exploited artificial neural networks trained with ultrasound images to automatically detect the optimal vertebra level and injection plane for percutaneous spinal needle injections. They used different ML techniques on the same type of medical images.…”
Section: Literature Review: Resultsmentioning
confidence: 99%
“…Two recent studies, namely Pesteie et al ( 2015 ) and Hetherington et al ( 2017 ), exploited artificial neural networks trained with ultrasound images to automatically detect the optimal vertebra level and injection plane for percutaneous spinal needle injections. They used different ML techniques on the same type of medical images.…”
Section: Literature Review: Resultsmentioning
confidence: 99%
“…Previously, we developed a system for automatic ultrasound plane classification for spinal injections namely, epidural and facet joint injections. 23 The system was trained on 1090 planes of 3D ultrasound volumes which were collected from 13 volunteers. Annotations of an expert sonographer was used for training to learn the signatures of the anatomical landmarks of the target planes.…”
Section: Resultsmentioning
confidence: 99%
“…The extracted features should be robust to different changes like translation, rotation, and scaling. Thus, initially, the segments are processed using two levels of DWT [35], and then multiple directional Walsh Hadamard 2D transform [36] is applied to each segment in the low‐frequency sub‐band for extracting multi‐directional features. DWT is applied to extract some features with diverse scales from the image by including successive low‐pass and high‐pass filters.…”
Section: Proposed Methodology For Identifying Brain Tumour Gradesmentioning
confidence: 99%