Automatic detection of a hand-held needle in ultrasound via phased-based analysis of the tremor motion

Parmida Beigi; Septimiu E. Salcudean; Robert Rohling; Gary C. Ng

doi:10.1117/12.2217073

18 March 2016 Automatic detection of a hand-held needle in ultrasound via phased-based analysis of the tremor motion

Parmida Beigi, Septimiu E. Salcudean, Robert Rohling, Gary C. Ng

Proceedings Volume 9786, Medical Imaging 2016: Image-Guided Procedures, Robotic Interventions, and Modeling; 97860I (2016) https://doi.org/10.1117/12.2217073
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

This paper presents an automatic localization method for a standard hand-held needle in ultrasound based on temporal motion analysis of spatially decomposed data. Subtle displacement arising from tremor motion has a periodic pattern which is usually imperceptible in the intensity image but may convey information in the phase image. Our method aims to detect such periodic motion of a hand-held needle and distinguish it from intrinsic tissue motion, using a technique inspired by video magnification. Complex steerable pyramids allow specific design of the wavelets' orientations according to the insertion angle as well as the measurement of the local phase. We therefore use steerable pairs of even and odd Gabor wavelets to decompose the ultrasound B-mode sequence into various spatial frequency bands. Variations of the local phase measurements in the spatially decomposed input data is then temporally analyzed using a finite impulse response bandpass filter to detect regions with a tremor motion pattern. Results obtained from different pyramid levels are then combined and thresholded to generate the binary mask input for the Hough transform, which determines an estimate of the direction angle and discards some of the outliers. Polynomial fitting is used at the final stage to remove any remaining outliers and improve the trajectory detection. The detected needle is finally added back to the input sequence as an overlay of a cloud of points. We demonstrate the efficiency of our approach to detect the needle using subtle tremor motion in an agar phantom and in-vivo porcine cases where intrinsic motion is also present. The localization accuracy was calculated by comparing to expert manual segmentation, and presented in (mean, standard deviation and root-mean-square error) of (0.93°, 1.26° and 0.87°) and (1.53 mm, 1.02 mm and 1.82 mm) for the trajectory and the tip, respectively.

Citation Download Citation

Parmida Beigi, Septimiu E. Salcudean, Robert Rohling, and Gary C. Ng "Automatic detection of a hand-held needle in ultrasound via phased-based analysis of the tremor motion", Proc. SPIE 9786, Medical Imaging 2016: Image-Guided Procedures, Robotic Interventions, and Modeling, 97860I (18 March 2016); https://doi.org/10.1117/12.2217073

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