نتایج جستجو برای: dimensional hysterosonography
تعداد نتایج: 399071 فیلتر نتایج به سال:
BACKGROUND Advances in three-dimensional imaging and three-dimensional printing technology have expanded the frontier of presurgical design for microtia reconstruction from two-dimensional curved lines to three-dimensional perspectives. This study presents an algorithm for combining three-dimensional surface imaging, computer-assisted design, and three-dimensional printing to create patient-spe...
PURPOSE To report the radiological findings of a pseudolesion in the myometrium mimicking adenomyosis presumably due to air intravasation during sonohysterography (SHG). MATERIALS AND METHODS We searched magnetic resonance imaging (MRI) and transvaginal ultrasound (TVUS) examination results before and after SHGs, in which echogenic foci were found suggesting adenomyosis in the myometrium, and...
Endometrial polyps (EPs) are a common cause of abnormal uterine bleeding (AUB) in perimenopausal and postmenopausal women and are typically suggested by a screening transvaginal ultrasound. In addition, the increasing use of pelvic imaging often discloses asymptomatic EPs. In the past, saline infusion sonography (SIS) has been advocated in order to triage patients to undergo a blind curettage o...
The purpose of this review article was to analyze the literature on the prevalence, diagnosis and treatment of the congenital uterine anomalies and to discuss current dilemmas on their influence on reproductive outcome. Congenital uterine anomalies are commonly associated with repeated pregnancy failure, in particular an increased risk of first- and second-trimester miscarriages and preterm del...
OBJECTIVE To compare the diagnostic performance of saline infusion sonohysterography (SIS), transvaginal ultrasound (TVS), and diagnostic hysteroscopy (DH) in the detection of endometrial lesions in symptomatic women. DESIGN Prospective, comparative study. SETTING Obstetrics and Gynecology Department of a tertiary academic hospital. PATIENT(S) A total of 105 consecutive women presenting i...
BACKGROUND The benefits of ultrasound-guided hysteroscopic metroplasty have been well described in the management of the partial septate uterus. The use of ultrasonography at the time of hysteroscopy provides visualization of the intrauterine instruments within the uterine cavity. This report describes a case where ultrasound-guidance was used to enter a noncommunicating uterine cavity hysteros...
Having knowledge of stability of an underground space depends on stresses and strains around it. Creating underground tunnels leads to significant changes in the rock mass stress. Therefore, to achieve the necessary stability, stresses and deformations around the tunnel must be examined carefully. Usually, stress-strain behavior analysis is conducted in two-dimensional mode. This paper was cond...
It is conventional to use multi-dimensional indexing structures to accelerate search operations in content-based image retrieval systems. Many efforts have been done in order to develop multi-dimensional indexing structures so far. In most practical applications of image retrieval, high-dimensional feature vectors are required, but current multi-dimensional indexing structures lose their effici...
A method for optimizing MR imaging pulse sequence parameters in a statistical framework is presented. Parameters are defined to be optimal when the resulting scalar images yield optimal image segmentations using Bayesian pixel classification. Thus, Bayes risk is used as the objective function to minimize. Approximations are made to give a tractable solution in a four-step procedure. A sample ca...
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