OBJECTIVE To compare the diagnostic performance of six different approaches for assessing myometrial infiltration using ultrasound in women with carcinoma of the corpus uteri. METHODS Myometrial infiltration was assessed by two-dimensional (2D) transvaginal or transrectal ultrasound in 169 consecutive women with well (G1) or moderately (G2) differentiated endometrioid type endometrial carcino...

PURPOSE: The open-source Perk Tutor training platform has been shown to improve trainee performance in interventions that require ultrasound guidance. Our goal was to determine if needle coordination of medical trainees can be improved by training with Perk Tutor compared to training with ultrasound only. METHODS: Twenty participants with no previous experience were randomized into two groups; ...

Nowadays ultrasound (US) examinations are typically performed with conventional machines providing two dimensional imagery. However, there exist a multitude of applications where doctors could benefit from three dimensional ultrasound providing better judgment, due to the extended spatial view. 3D freehand US allows acquisition of images by means of a tracking device attached to the ultrasound ...

Ultrasound images of the heart are obtained by a probe placed on the patient's chest. The resultant image is a triangular plane with its base in the middle of the body and the tip close to the probe on the chest. Thus, image planes with a different orientation (e.g. parallel to the surface of the body) are impossible to obtain. The aim of current 3D ultrasound of the heart is to provide the phy...

OBJECTIVE We have investigated alternative ways to integrate intraoperative 3D ultrasound images and preoperative MR images in the same 3D scene for visualizing brain shift and improving overview and interpretation in ultrasound-based neuronavigation. MATERIALS AND METHODS A Multi-Modal Volume Visualizer (MMVV) was developed that can read data exported from the SonoWand neuronavigation system...

Results First case of TRAP sequence was diagnosed at 8 weeks of gestation and controlled at 10 weeks using transvaginal 3D/4D ultrasound. 3D/4D ultrasound imaging showed a monovhorionic-monoamniotic twin pregnancy with nornal morpology and growth of the first twin and growth restriction of the second twin, with abnormal cephalic pole (acrania), no presence of cardiac activity and presence of re...

AIM The combination of different imaging modalities through the use of fusion devices promises significant diagnostic improvement for breast pathology. The aim of this study was to evaluate image quality and clinical feasibility of a prototype fusion device (fusion prototype) constructed from a standard tomosynthesis mammography unit and a standard 3D ultrasound probe using a new method of brea...

The development of atherosclerotic plaques has been associated with the patterns of wall shear stress (WSS). However, much is still uncertain with the methods used to calculate WSS. Correct vessel geometries are mandatory to get reliable estimations and the purpose of this study was to evaluate an in vivo method for creating aortic 3D geometry in man based on data from magnetic resonance imagin...

For training sonographers in navigating, acquiring, and interpreting ultrasound images, virtual-reality based simulation offers a safe, flexible, and standardized environment. In data-based training simulations, images from a-priori acquired volumes are displayed to the trainee. To understand the relationship between organs, it is necessary to allow for free exploration of the entire anatomy, w...

DEBATE " It is impossible to read through an imaging journal nowadays and turn a blind eye to the plethora of articles dealing with different aspects of three and four-dimensional ultrasound in our specialty " 1. This statement was made in 2007 and is concordant with my current literature review. Superficially, the message obtained from the mere volume of material could be that 3D ultrasound ha...