AIMC Topic:
Ultrasonography

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Totally robotic repair of atrioventricular septal defect in the adult.

Journal of cardiothoracic surgery Nov 6, 2015
BACKGROUND: Atrioventricular septal defect (AVSD) accounts for up to 3 % of congenital cardiac defects, which is routinely repaired via median sternotomy. Minimally invasive approach such as endoscopic or robotic assisted repair for AVSD has not been...
Humans Female Young Adult Cardiac Surgical Procedures Heart Defects, Congenital Sternotomy Heart Septal Defects Adult Ultrasonography Robotics Minimally Invasive Surgical Procedures
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Neural hypernetwork approach for pulmonary embolism diagnosis.

BMC research notes Oct 29, 2015
BACKGROUND: Hypernetworks are based on topological simplicial complexes and generalize the concept of two-body relation to many-body relation. Furthermore, Hypernetworks provide a significant generalization of network theory, enabling the integration...
Humans Neural Networks, Computer Middle Aged Lung Ultrasonography ROC Curve Machine Learning Female Aged Male Pulmonary Embolism Survival Analysis
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Robotic Mitral Valve Repair for Simple and Complex Degenerative Disease: Midterm Clinical and Echocardiographic Quality Outcomes.

Circulation Oct 19, 2015
BACKGROUND: Severe primary (degenerative) mitral regurgitation (MR) is repaired with durable results when simple single-scallop disease is addressed. The midterm quality outcomes of minimally invasive repair for complex disease are unknown, however.
Mitral Valve Prolapse Reoperation Kaplan-Meier Estimate Recurrence Cardiac Valve Annuloplasty Ultrasonography Treatment Outcome Follow-Up Studies Robotics Aged Tertiary Care Centers Humans Male Mitral Valve Insufficiency Proportional Hazards Models Risk Female Middle Aged Postoperative Complications
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Remote Sonography in Routine Clinical Practice Between Two Isolated Medical Centers and the University Hospital Using a Robotic Arm: A 1-Year Study.

Telemedicine journal and e-health : the official journal of the American Telemedicine Association Sep 16, 2015
BACKGROUND: A robotic arm was developed by our laboratory for tele-operated echography on patients in locations isolated from a trained sonographer. The objective of the study was to evaluate, over a 1-year period, the use of the robotic arm for tele...
Hospitals, University Remote Consultation Rural Health Services Humans Ultrasonography Robotics Equipment Design
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Ultrasonic shears assistance can shorten the console time in robotic gastrectomy for early gastric cancer.

BMC research notes Sep 15, 2015
BACKGROUND: Robotic gastric surgery has been introduced and is being performed in many Japanese facilities. There are some limitations of devices capable to be used in the robotic arms in the da Vinci Surgical System. We have reviewed our first ten c...
Gastrectomy Ultrasonics Ultrasonography Operative Time Robotics Laparoscopy Humans Aged Adult Stomach Neoplasms Middle Aged
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Feature-based fuzzy connectedness segmentation of ultrasound images with an object completion step.

Medical image analysis Jul 17, 2015
Medical ultrasound (US) image segmentation and quantification can be challenging due to signal dropouts, missing boundaries, and presence of speckle, which gives images of similar objects quite different appearance. Typically, purely intensity-based ...
Pattern Recognition, Automated Image Enhancement Subtraction Technique Humans Algorithms Reproducibility of Results Sensitivity and Specificity Ultrasonography Fuzzy Logic Image Interpretation, Computer-Assisted
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Computerized analysis of calcification of thyroid nodules as visualized by ultrasonography.

European journal of radiology Jun 25, 2015
OBJECTIVE: The purpose of this study is to quantify computerized calcification features from ultrasonography (US) images of thyroid nodules in order to determine the ability to differentiate between malignant and benign thyroid nodules.
Feasibility Studies Hyperplasia Carcinoma, Papillary Thyroiditis Retrospective Studies Image Processing, Computer-Assisted Female Thyroid Neoplasms Calcinosis Aged Ultrasonography Diagnosis, Differential Aged, 80 and over Adult Thyroid Nodule Area Under Curve Humans ROC Curve Sensitivity and Specificity Neural Networks, Computer Male Middle Aged
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Design of a Thermoacoustic Sensor for Low Intensity Ultrasound Measurements Based on an Artificial Neural Network.

Sensors (Basel, Switzerland) Jun 23, 2015
In therapeutic ultrasound applications, accurate ultrasound output intensities are crucial because the physiological effects of therapeutic ultrasound are very sensitive to the intensity and duration of these applications. Although radiation force ba...
Neural Networks, Computer Ultrasonography Equipment Design Hot Temperature
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Compressed Sensing Reconstruction of 3D Ultrasound Data Using Dictionary Learning and Line-Wise Subsampling.

IEEE transactions on medical imaging Jun 4, 2015
In this paper we present a compressed sensing (CS) method adapted to 3D ultrasound imaging (US). In contrast to previous work, we propose a new approach based on the use of learned overcomplete dictionaries that allow for much sparser representations...
Humans Machine Learning Algorithms Databases, Factual Sheep Swine Ultrasonography Brain Imaging, Three-Dimensional Computer Simulation Kidney Animals Echocardiography
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A Markov random field approach to group-wise registration/mosaicing with application to ultrasound.

Medical image analysis Jun 3, 2015
In this paper we present a group-wise non-rigid registration/mosaicing algorithm based on block-matching, which is developed within a probabilistic framework. The discrete form of its energy functional is linked to a Markov Random Field (MRF) contain...
Image Enhancement Sensitivity and Specificity Computer Simulation Ultrasonography Data Interpretation, Statistical Subtraction Technique Humans Pregnancy Imaging, Three-Dimensional Machine Learning Markov Chains Models, Statistical Female Algorithms Image Interpretation, Computer-Assisted Pattern Recognition, Automated Reproducibility of Results
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