Search Results - "Douglas P Perrin"

Temporal Enhancement of 3D Echocardiography by Frame Reordering by Perrin, Douglas P., PhD, Vasilyev, Nikolay V., MD, Marx, Gerald R., MD, del Nido, Pedro J., MD

“…We describe a method to increase the frame rate for 3-dimensional ultrasound sequences of periodically moving cardiac structures by reordering the acquired…”
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Changes in left atrioventricular valve geometry after surgical repair of complete atrioventricular canal by Kaza, Elisabeth, MD, Marx, Gerald R., MD, Kaza, Aditya K., MD, Colan, Steven D., MD, Loyola, Hugo, MS, Perrin, Douglas P., PhD, del Nido, Pedro J., MD

“…Objective The most common reason for late surgical reintervention after repair of complete atrioventricular canal defects is the development of left…”
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Image-based simulation of mitral valve dynamic closure including anisotropy by Khaledian, Nariman, Villard, Pierre-Frédéric, Hammer, Peter E., Perrin, Douglas P., Berger, Marie-Odile

“…Simulation of the dynamic behavior of mitral valve closure could improve clinical treatment by predicting surgical procedures outcome. We propose here a method…”
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Image Guided Surgical Interventions by Perrin, Douglas P., PhD, Vasilyev, Nikolay V., MD, Novotny, Paul, PhD, Stoll, Jeffrey, PhD, Howe, Robert D., PhD, Dupont, Pierre E., PhD, Salgo, Ivan S., MD, MS, del Nido, Pedro J., MD

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Gaussian process regression for ultrasound scanline interpolation by Degirmenci, Alperen, Howe, Robert D., Perrin, Douglas P.

“…Purpose: In ultrasound imaging, interpolation is a key step in converting scanline data to brightness-mode (B-mode) images. Conventional methods, such as…”
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An intraoperative test device for aortic valve repair by Berra, Ignacio G., Hammer, Peter E., Berra, Sebastian, Irusta, Alfredo Oscar, Chang Ryu, Seok, Perrin, Douglas P., Vasilyev, Nikolay V., Cornelis, Carlos Javier, Delucis, Pablo Garcia, del Nido, Pedro J.

“…Aortic valve repair is currently in transition from surgical improvisation to a reproducible operation and an option for many patients with aortic…”
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High dynamic range ultrasound imaging by Degirmenci, Alperen, Perrin, Douglas P., Howe, Robert D.

“…Purpose High dynamic range (HDR) imaging is a popular computational photography technique that has found its way into every modern smartphone and camera. In…”
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Mitral Annulus Segmentation From 3D Ultrasound Using Graph Cuts by Schneider, Robert J, Perrin, Douglas P, Vasilyev, Nikolay V, Marx, Gerald R, del Nido, Pedro J, Howe, Robert D

“…The shape of the mitral valve annulus is used in diagnostic and modeling applications, yet methods to accurately and reproducibly delineate the annulus are…”
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Real-time image-based rigid registration of three-dimensional ultrasound by Schneider, Robert J., Perrin, Douglas P., Vasilyev, Nikolay V., Marx, Gerald R., del Nido, Pedro J., Howe, Robert D.

“…Liver mosaic (right) made from 60+ 3D ultrasound volumes (left). Image-based rigid registration of volumes took an average of 24.4ms per volume. [Display…”
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Force tracking with feed-forward motion estimation for beating heart surgery by Yuen, Shelten G., Perrin, Douglas P., Vasilyev, Nikolay V., del Nido, Pedro J, Howe, Robert D.

“…The manipulation of fast-moving, delicate tissues in beating heart procedures presents a considerable challenge to the surgeon. A robotic force tracking system…”
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Mitral annulus segmentation from four-dimensional ultrasound using a valve state predictor and constrained optical flow by Schneider, Robert J., Perrin, Douglas P., Vasilyev, Nikolay V., Marx, Gerald R., del Nido, Pedro J., Howe, Robert D.

“…3DMAS Method (3D Mitral Annulus Segmentation Method): Algorithm to segment the mitral valve annulus in a 3D ultrasound frame showing a closed mitral valve…”
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Fast image‐based mitral valve simulation from individualized geometry by Clive, Loughlin, Villard, Pierre‐Frederic, Hammer, Peter E., Perrin, Douglas P., Nido, Pedro J., Howe, Robert D.

“…Background: Common surgical procedures on the mitral valve of the heart include modifications to the chordae tendineae. Such interventions are used when there…”
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OA-26 3Dエコーガイド人工心肺非使用心拍動下僧帽弁輪形成術:動物実験的考察 by 河田光弘, Nikolay V Vasilyyev, Douglas P Perrin, Pedro J del Nido

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Temporal enhancement of 2D color Doppler echocardiography sequences by fragment-based frame reordering and refinement by Terentjev, Alexey B., Perrin, Douglas P., Settlemier, Scott H., Zurakowski, David, Smirnov, Pavel O., del Nido, Pedro J., Shturts, Igor V., Vasilyev, Nikolay V.

“…Purpose The goal of this study was to develop an algorithm that enhances the temporal resolution of two-dimensional color Doppler echocardiography (2D CDE) by…”
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Patient-specific mitral leaflet segmentation from 4D ultrasound by Schneider, Robert J, Tenenholtz, Neil A, Perrin, Douglas P, Marx, Gerald R, del Nido, Pedro J, Howe, Robert D

“…Segmenting the mitral valve during closure and throughout a cardiac cycle from four dimensional ultrasound (4DUS) is important for creation and validation of…”
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Beating-heart mitral valve suture annuloplasty under real-time three-dimensional echocardiography guidance: an ex vivo study by Kawata, Mitsuhiro, Vasilyev, Nikolay V., Perrin, Douglas P., del Nido, Pedro J.

“…Abstract We are developing an alternative mitral valve suture annuloplasty technique on the beating-heart under real-time three-dimensional echocardiography…”
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Mitral annulus segmentation from three-dimensional ultrasound by Schneider, R.J., Perrin, D.P., Vasilyev, N.V., Marx, G.R., del Nido, P.J., Howe, R.D.

“…An accurate and reproducible segmentation of the mitral valve annulus from 3D ultrasound is useful to clinicians and researchers in applications such as…”
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Grasping and Tracking Using Constant Curvature Dynamic Contours by Perrin, Douglas P., Kadioglu, Esra, Stoeter, Sascha A., Papanikolopoulos, Nikolaos

“…In this paper we present our constant curvature dynamic contours (snakes) and three applications of these: visual servoing and grasping, occluding contour…”
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Efficient human-in-loop deep learning model training with iterative refinement and statistical result validation by Zahn, Manuel, Perrin, Douglas P

“…Annotation and labeling of images are some of the biggest challenges in applying deep learning to medical data. Current processes are time and cost-intensive…”
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Temporal Enhancement of Three Dimensional Echocardiography by Frame Reordering by Perrin, Douglas P., Vasilyev, Nikolay V., Marx, Gerald R., del Nido, Pedro J.

“…In this work we describe a method to increase the frame rate for three dimensional ultrasound sequences of periodically moving cardiac structures by reordering…”
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