3D ultrasound simulation based on a biomechanical model of prone MRI in breast cancer imaging

Women with breast cancer, whether screen detected or symptomatic, have both mammography and ultrasound for initial imaging assessment. Unlike X-ray or magnetic resonance, which produce an image of the whole breast, ultrasound provides comparatively limited 2D or 3D views located around the lesions. Combining different modalities is an essential task for accurate diagnosis and simulating ultrasound images based on whole breast data could be a way toward correlating different information about the same lesion. Very few studies have dealt with such a simulation framework since the breast undergoes large scale deformation between the prone position of magnetic resonance imaging and the largely supine or lateral position of ultrasound. We present a framework for the realistic simulation of 3D ultrasound images based on prone magnetic resonance images from which a supine position is generated using a biomechanical model. The simulation parameters are derived from a real clinical infrastructure and from transducers that are used for routine scans, leading to highly realistic ultrasound images of any region of the breast</p

Ultrasound simulation of breast lesions based on a biomechanical model of prone MRI in cancer imaging

Legacy description not available</p

Additional file 1: of Pre-natal exposures and breast tissue composition: findings from a British pre-birth cohort of young women and a systematic review

Methods 1. Validation of breast volume and fat-water segmentation methods using magnetic resonance imaging (MRI) images. Methods 2. Protocol of the systematic review on pre-natal exposures and breast tissue composition. Methods 3. Systematic literature review of maternal, in utero and birth size variables as well as breast tissue composition. (DOCX 1513 kb

Pedagogical and psychological factors that influence player performance in youth football

Title: Psychological and pedagogical factors that influence player performance in youth football Objectives: The objective of the theoretical part is to analyze the psychological development of the player and the pedagogical aspects influencing the performance from the point of view of the educational activities of the coaches and parents. The selected theoretical starting points are then linked to the player's game play and its sporting development. The content of the research section is to examine the emotional reactions of the players of the preparatory and pupil categories in the clubs AC Sparta Praha and FK Dukla Praha. We analyzed the results of the emotional experience of the players and then we analyzed the differences of factors in the developmental stages of the sporting development and the results of the differences of emotional reactions of the players of both clubs. Methods: In this work we used a questioning method, namely a standardized DEMOR emotional reaction questionnaire examining emotional reactions of pupils. We have adapted it to the sport training environment and piloted. The research was conducted in seven teams of the AC Sparta Prague Football Club and seven teams of FK Dukla Prague in the U9-U15 category. Results: The results showed high values of positive emotional..

Additional file 2: of Mammographic density assessed on paired raw and processed digital images and on paired screen-film and digital images across three mammography systems

is Table S2 presenting mean MD measures of inter-reader repeats, by reader and image type. (DOC 29 kb

Difference in square-root mammographic density measures in postmenopausal compared to premenopausal women and by time since menopause: Overall and in subgroups (pooled analyses).

<p>Difference in square-root mammographic density measures in postmenopausal compared to premenopausal women and by time since menopause: Overall and in subgroups (pooled analyses).</p

Polynomial smoothed curves of the crude association of percent mammographic density with age, for each population group within broad ethnic groups.

<p>The broad ethnic groups are organised from largest (black women) to smallest (East Asian women) average breast area for BMI. Full names and details of studies/population groups presented in this figure are provided in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.1002335#pmed.1002335.s011" target="_blank">S1 Text</a>). Adjustments: none. PD, percent mammographic density.</p

Modelled associations of square-root percent density, dense area, and total breast area with age and menopausal status, overall and by subgroups.

<p>Square-root dense/breast area is the width of a square representing the dense/breast area; square-root PD is the width of a dense-area square within a 10 cm × 10 cm square. All models are adjusted for age, BMI, BMI2, parity, age at first birth, HRT use (never, ever, past, current, not known), MD reader, image type, and mammography view. BMI, body mass index; CI, confidence interval; ICMD, International Consortium on Mammographic Density;HRT, hormone replacement therapy; MD, mammographic density.</p

Characteristics of ICMD participants by age: Menopausal status, BMI, and measures of mammographic density.

<p>Characteristics of ICMD participants by age: Menopausal status, BMI, and measures of mammographic density.</p

Difference in square-root mammographic density measures with a 10-year difference in age, in pre- and postmenopausal women.

<p>Difference in square-root mammographic density measures with a 10-year difference in age, in pre- and postmenopausal women.</p