Ultrasonography of the endometrium is a noninvasive way to evaluate the chance of successful implantation during in vitro fertilization treatment. Ultrasound parameters of endometrial receptivity include endometrial thickness, endometrial pattern, endometrial volume, Doppler studies of uterine vessels and the endometrium. Endometrial thickness, pattern and volume are not predictive of pregnancy...

BACKGROUND The impact of intramural fibroids on the success of IVF treatment is controversial and the mechanisms leading to poor treatment outcomes remain unknown. We compared endometrial and subendometrial blood flow between women with and without intramural fibroids during IVF treatment. METHODS Three-dimensional (3D) ultrasound examination with power Doppler was performed on the day of ooc...

BACKGROUND A good blood supply to the endometrium is usually considered as an essential requirement for implantation. OBJECTIVE The aim of this study was to evaluate the role of endometrial and subendometrial vascularity in the prediction of pregnancy during frozen-thawed embryo transfer (FET) cycles. METHODS Women undergoing FET in natural or clomiphene-induced cycles after the first stimu...

The application of 3D imaging in pediatric rheumatology helps to make the assessment of inflammatory changes more objective and to estimate accurately their volume and the actual response to treatment in the course of follow-up examinations. Additional interesting opportunities are opened up by the vascularity analysis with the help of power Doppler and color Doppler in 3D imaging. Contrast-enh...

PURPOSE The purpose of this study was to monitor tumour blood flow with power Doppler ultrasound following antiangiogenic therapy with bevacizumab in order to optimally time the application of radiofrequency (RF) ablation to increase ablation diameter. MATERIALS AND METHODS Athymic nude mice bearing human hepatocellular carcinoma xenografts were treated with bevacizumab and imaged daily with ...

This paper establishes an efficient color space for the contrast enhancement of myocardial perfusion images. The effects of histogram equalization and contrast limited adaptive histogram equalization are investigated and the one which gives good enhancement results is extended to the suitable color space. The color space which gives better results is chosen experimentally. Uniqueness of this wo...

A novel Illumination based Sub-Image Histogram Equalization (ISIHE) method for contrast enhancement for low illumination gray scale images is presented in this paper. As the main crux of paper, illumination thresholds are computed and used to divide the original image into sub-images of different intensity levels. To control the enhancement rate, the histogram is clipped using a threshold value...

The role of Doppler in the assessment of fetal and placental blood flow is well-established1. However, as exemplified by the large variability of results published in the literature, its role in the evaluation of uterine and ovarian hemodynamics is not so clearly defined. Velocimetric indices such as pulsatility index and resistance index have been shown to provide useful information on uterine...