نتایج جستجو برای: 3d ultrasound
تعداد نتایج: 294066 فیلتر نتایج به سال:
Automated motion reconstruction of the left ventricle (LV) from 3D echocardiography provides insight into myocardium architecture and function. Low image quality and artifacts make 3D ultrasound image processing a challenging problem. We introduce a LV tracking method, which combines textural and structural information to overcome the image quality limitations. Our method automatically reconstr...
The e-Touch sonoTM system allows users to interactively feel and see 3D ultrasound images. This system is currently targeted for use in pre-natal imaging [1]. Parents are able to feel as well as see three-dimensional imagery. We have found that this increases both their understanding and their enjoyment of their child's ultrasound image. This has several important benefits. First of all, it all...
OBJECTIVE To compare biometric measurements of the pubovisceral muscle during rest, measured using transperineal three-dimensional (3D) ultrasound and magnetic resonance imaging (MRI). METHODS In this prospective study, 18 female volunteers underwent 3D perineal ultrasound examination and MRI. All women were examined at rest in the supine position and the following measurements were taken: ar...
Objective: To assess the value of adding three-dimensional (3D) power Doppler (as a diagnostic technique) to grayscale in the prenatal diagnosis of placenta accreta. Material and Methods: One hundred pregnant women with persistent placenta previatotalis (after 28 weeks' gestation) were prospectively enrolled into this study. Gray-scale transabdominal ultrasound was performed to detect loss of t...
3D volumetric ultrasound is shown to be of tremendous value particularly in gynaecology and associated clinical areas. The combination of modern 3D technology and high resolution transvaginal scanning provides increased anatomical and clinical detail. Furthermore it offers considerable benefits from a practical point of view. Nevertheless, its role in gynaecological ultrasound has yet to be ful...
Conventional freehand 3D ultrasound is a multi-stage process. First, the clinician scans the area of interest. Next, the ultrasound data is used to construct a 3D voxel array, which can then be visualised by, for example, any-plane slicing. The strict separation of data acquisition and visualisation disturbs the interactive nature of the ultrasound examination. Furthermore, some systems require...
An overview of the current status of the development of our navigation system for resection of liver tumours is given. The system is based on intraoperative 3D ultrasound volumes for image-guided navigation of surgical instruments. It is also possible to perform a virtual 3D planning of the tumour resection and to non-rigidly register these preoperative models to the intraoperative ultrasound v...
Real-time three-dimensional (3D) ultrasound (US) has attracted much more attention in medical researches because it provides interactive feedback to help clinicians acquire high-quality images as well as timely spatial information of the scanned area and hence is necessary in intraoperative ultrasound examinations. Plenty of publications have been declared to complete the real-time or near real...
INTRODUCTION Freehand three-dimensional (3D) ultrasound has the advantages of flexibility for allowing clinicians to manipulate the ultrasound probe over the examined body surface with less constraint in comparison with other scanning protocols. Thus it is widely used in clinical diagnose and image-guided surgery. However, as the data scanning of freehand-style is subjective, the collected B-sc...
The use of 3D ultrasound imaging to follow the progression of scoliosis, i.e., a 3D deformation of the spine, is described. Unlike other current examination modalities, in particular based on X-ray, its non-detrimental effect enables it to be used frequently to follow the progression of scoliosis which sometimes may develop rapidly. Furthermore, 3D ultrasound imaging provides information in 3D ...
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