Search results for "3D ultrasound"

Three-dimensional ultrasound radiance mode imaging of a uterine lipoleiomyoma.

2016

In this case report the diagnosis of a uterine lipoleiomyoma is depicted by means of a three-dimensional radiance mode. The advent of radiance or silhouette mode as a new tool in ultrasound diagnosis is intended to assist by generating additional realistic image visualization and a better distinction among different tissues.

Three-dimensional ultrasound evaluation of ovarian masses.

1995

Seventy-six women with ovarian masses first detected with two-dimensional (2D) ultrasound were then evaluated with three-dimensional (3D) ultrasound. Two-dimensional ultrasound detected four of five ovarian malignancies. One additional ovarian carcinoma was diagnosed by 3D scanning. Observation of papillary projections, characteristics of cystic walls, and the extent of capsular infiltration of tumors was superior with 3D ultrasound as was the calculation of ovarian volume. Fifty-seven of the women studied underwent surgery within 7 days of 3D ultrasound evaluation. Histologic examination of surgical specimens confirmed the 3D sonographic diagnoses. There was one false positive and one fals…

Assessment of endometrial volume by three-dimensional ultrasound prior to embryo transfer: clues to endometrial receptivity

1999

The aim of the present prospective study was to obtain quantitative data on endometrial volume by three-dimensional (3D) ultrasound at the time of embryo transfer in an in-vitro fertilization programme and to assess its value in predicting endometrial receptivity. The cycles (n = 72) were classified according to endometrial volume: group A2 ml, group B 2-4 ml, and group C4 ml. Comparisons of the groups showed that pregnancy and implantation rates were significantly lower (P0.05) in the group of patients with an endometrial volume2 ml. Furthermore, no pregnancy was achieved with an endometrial volume1 ml. It is concluded that endometrial volume by 3D transvaginal ultrasound may become a new …

Examination of the fetal brain by transabdominal three-dimensional ultrasound: potential for routine neurosonographic studies

2006

Objective To evaluate the role of transabdominal three-dimensional (3D) ultrasound in the assessment of the fetal brain and its potential for routine neurosonographic studies. Methods We studied prospectively 202 consecutive fetuses between 16 and 24 weeks' gestation. A 3D ultrasound volume of the fetal head was acquired transabdominally. The entire brain anatomy was later analyzed using the multiplanar images by a sonologist who was expert in neonatal cranial sonography. The quality of the conventional planes obtained (coronal, sagittal and axial, at different levels) and the ability of the 3D multiplanar neuroscan to visualize properly the major anatomical structures of the brain were eva…

Value of the electronic scalpel (cut mode) in the evaluation of the fetal face

2000

Objectives To evaluate the improvement of image quality and diagnostic value of fetal face examinations using the electric scalpel. Methods A total of 232 cases were examined. The fetuses were separated into two groups: Group A, including normal fetuses (n = 152) and Group B, fetuses with facial pathology (n = 80). The fetuses were divided into eight subgroups according to gestational age (9–12 weeks, 13–16 weeks, 17–20 weeks, 21–24 weeks, 25–28 weeks, 29–32 weeks, 33–36 weeks and 37–40 weeks). Results The number of cutting steps for the improvement of image quality ranged from 1 to 9 (mean value 3) in the group of normal fetuses and from 1 to 10 (mean value 3) in the group of fetuses with …

Biometry of the fetal corpus callosum by three-dimensional ultrasound

2013

Objectives To construct reference ranges of quantitative characteristics of the fetal corpus callosum. Methods Women referred to a tertiary center for sonographic examination were recruited to undergo a detailed fetal scan from 17 to 41 weeks of gestation. Three-dimensional (3D) sonographic volumes of normal fetal brains were acquired and analyzed offline. We obtained three different measurements of the corpus callosal length, as well as the height (/thickness) of its segments, namely the rostrum, genu, body and splenium. Results Initially we recruited 604 pregnant women, of whom 138 were excluded because of various disorders/abnormalities, multiple pregnancy or gestational age < 18 weeks. …

P03.04: The influence of mode of conception, fetal gender and twin pregnancy in the development of cerebral structures: a fetal brain 3D ultrasound s…

2006

HDlive ultrasound images in assisted reproduction treatment.

2012

Abstract The volume ultrasound technology software known as the HDlive technique represents an innovative tool, a step towards an even more realistic anatomical visualization of pelvic organ structures. HDlive can help improve physician–patient communication with the aid of life-like images and might prove useful in the field of assisted reproduction treatment. The clinical application of this novel ultrasound technology in assisted reproduction treatment deserves scientific evaluation.

Measurement of subpubic arch angle by three-dimensional transperineal ultrasound and impact on vaginal delivery

2015

Objectives To assess whether antepartum measurement of the subpubic arch angle (SPAA) as a parameter of the bony pelvic outlet can predict vaginal delivery. Methods Between January 2007 and June 2011, 625 nulliparous women with a singleton pregnancy were recruited from the antenatal clinic to be interviewed and have a four-dimensional transperineal ultrasound examination. Ultrasound examinations were performed between 34 and 36 weeks of gestation. Volume ultrasound data were saved for offline analysis, blinded against all other data. The SPAA was measured in the axial plane and logistic regression analysis was used to examine the association between SPAA and outcomes of vaginal delivery vs …

Focal liver lesions: interobserver and intraobserver agreement of three-dimensional contrast-enhanced ultrasound-assisted volume measurements

2021

Purpose: This study was conducted to assess the interobserver and intraobserver agreement of three-dimensional contrast-enhanced ultrasound (3D-CEUS) volume calculations of focal liver lesions (FLLs).Methods: Thirty-nine patients (15 men and 24 women; mean age, 55.4 years) with 39 Flis (mean size, 3.1 +/- 1.8 cm; size range, 1 to 8 cm) prospectively underwent 3D-CEUS. Four readers calculated the volume of each lesion in an independent and blinded fashion in two separate sessions by means of a semi-automatic, commercially available proprietary software. The differences in lesion volumes (cm(3)) among sessions and readers were assessed using the Mann-Whitney U test and the Kruskal-Wallis test…