50 results about "Breast cancer screening" patented technology

A medical breast-image capturing apparatus includes an aperture member for exposing a breast of a test subject. To perform adequate breast cancer screening, the aperture member has a noncircular shape, is arranged to be replaceable with another aperture member, or has a variable opening. Another medical breast-image capturing apparatus includes a pressure-reducing device for reducing a pressure in a hollow section in which a breast is exposed.

A method of screening for breast cancer, comprising: testing a plurality of asymptomatic women by measuring at least one electrical impedance characteristic on at least one breast, said asymptomatic woman being classified as belonging to a first group having a first risk factor for breast cancer; and re-classifying some of the women as belonging to a second group having a second risk factor greater than the first risk factor, based on the at least one impedance characteristic, wherein the second group has a risk factor of at least twice that of the first group, but less than 15 times that of the first group; and wherein fewer than 60% of those in the first group that have breast cancer are reclassified into the second group.

Ultrasonic scanning and diagnostics for cellular tissue are disclosed. An ultrasonic probe is moved across cellular tissue at a rate that is synchronized with the image capture rate of the ultrasonic scanner, to achieve a contiguous and complete set of scan images of the tissue. The probe can be held in a single position as it is moved across the tissue, or it can be dynamically adjusted during the scan to provide optimal contact with the scanned tissue. The image data are captured and converted to a format that is easily stored and compatible with a viewer. The viewer allows playback of the scanned images in a manner that is optimized for screening for cancers and other anomalies. A location function allows the user to select a point of interest on an individual scan image, and choose another known reference point, and the function calculates and provides the distance from the reference point to the point of interest in three dimensions. The system can be used for virtually any tissue, but can also be optimized for breast cancer screening. A pad of different density may be placed over the nipple to provide a reference point that is visible in the scan images. The breast may be covered with a fabric that is constructed in such a manner to hold the breast in place and reduce ultrasonic scanning errors, as well as holding the pad in place. The location function described above will use the nipple pad as a reference point from which to measure any detected cancers or other anomalies.

A breast imaging system leverages the combined strengths of two-dimensional and three-dimensional imaging to provide a breast cancer screening with improved sensitivity, specificity and patient dosing. A tomosynthesis system supports the acquisition of three-dimensional images at a dosage lower than that used to acquire a two-dimensional image. The low-dose three-dimensional image may be used for mass detection, while the two-dimensional image may be used for calcification detection. Obtaining tomosynthesis data at low dose provides a number of advantages in addition to mass detection including the reduction in scan time and wear and tear on the x-ray tube. Such an arrangement provides a breast cancer screening system with high sensitivity and specificity and reduced patient dosing.

Provided herein is technology for breast cancer screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of breast cancer.

What is disclosed is a system and method for detecting cancerous tissue in breast tissue using a thermal image. In one embodiment, the present tumor detection method involves selecting a region of interest in the thermal image to be processed for breast cancer screening. Thereafter, a percentage of pixels p1 in the selected region having a temperature Tpixel1, where T1≦Tpixel1≦T2, is determined. A percentage of pixels p2 in the selected region having a temperature Tpixel2, where T3≦Tpixel2, is determined. A ratiop3=Pedge / Pblockis also determined, where Pedge is a number of pixels around a border of a suspected tumor within the selected region, and Pblock is a number of pixels in a perimeter of the selected region. A decision fusion rule R, as more fully disclosed herein, is utilized to determine, based on these determination whether tissue within that region is cancerous, or non-cancerous, or is suspicious of being cancerous.

What is disclosed is a system and method for automatically segmenting a breast from surrounding tissue in a thermal image. A thermal image of at least one breast of the patient is received. The thermal image is then analyzed to identify a set of N points around the breast, a contour of an outline of the body, and isotherms of the axilla and infra-mammary fold. Thereafter, the points are connected together to form a N-sided irregular polygon which segments the breast from surrounding tissue. Each of the points is a vertex of the polygon and comprises a draggable object which enables a user to selectively manipulate a shape of the polygon. A user can add / delete vertices from the polygon as desired. The area of the image encompassed by the polygon is communicated to a breast cancer screening algorithm performing automated or semi-automated screening.

The present invention discloses a group of piRNA biomarkers for breast cancer diagnosis and its application, and belongs to the fields of molecular biology and oncology. The piRNA biomarkers are piR651, piR17458 and piR20485; wherein, the nucleotide sequence of piR651 is as SEQ ID As shown in NO:1, the nucleotide sequence of piR17458 is shown in SEQ ID NO:2; the nucleotide sequence of piR20485 is shown in SEQ ID NO:3. The present invention finds that the combination of piR651, piR17458 and piR20485 can be used as breast cancer diagnostic markers and applied to breast cancer screening, especially early breast cancer screening, to make up for the current breast cancer diagnostic markers and early breast cancer diagnostic markers The specificity of the substance is not good, and the sensitivity is not enough.