Women's health news related to breast imaging, including mammography, breast MRI, automated breast ultrasound (ABUS), breast ultrasound, breast biopsy, and positron emission mammography (PEM). This channel also includes news on breast density and the issues it causes in detecting cancers. Mammography can be broken into two types of systems. 2-D full field digital mammography (FFDM) have almost completely replaced older X-ray film based systems. The newest generation systems use 3-D tomosynthesis mammography technology, where a series of digital images are shot in an arch around the breasts and a computer reconstructs the images into slices that can be scrolled through to see layers of tissue. This allows easier radiology reading of images, especially in women with dense breasts, because it can cancers where there are several layers of thick breast tissue that can mask cancers on 2-D mammography. Tomo is rapidly replacing FFDM.
a Schematic of the system. The entire solid tumour is illuminated from four sides by a four-arm fibre bundle. A cylindrically focused linear array is designed to detect optoacoustic signals from the tumour. In vivo imaging is performed in conical scanning geometry by controlling the rotation and translation stages. The sensing part of the transducer array and the tumour are submerged in water to provide acoustic coupling. b Maximum intensity projections of the optoacoustic reconstruction of a phantom of polyethylene microspheres (diameter, 20 μm) dispersed in agar. The inset shows a zoomed-in view of the region boxed with a yellow dashed line. In addition, the yellow boxes are signal profiles along the x, y and z axes across the microsphere centre, as well as the corresponding full width at half-maximum values. c Normalized absorption spectra of Hb, HbO2 and gold nanoparticles (AuNPs). The spectrum for the AuNPs was obtained using a USB4000 spectrometer (Ocean Optics, Dunedin, FL, USA), while the spectra for Hb and HbO2 were taken from http://omlc.org/spectra/haemoglobin/index.html. The vertical dashed lines indicate the five wavelengths used to stimulate the three absorbers: 710, 750, 780, 810 and 850 nm. Optoacoustic signals were filtered into a low-frequency band (red) and high-frequency band (green), which were used to reconstruct separate images.
Kubtec hosts a Podcast: Impact of COVID-19 on Breast Cancer Treatment with Andrea Madrigrano, M.D., as part of its public service campaign.
Table 1. Compared to 2-D mammography, which yields four images per patient, digital breast tomosynthesis (DBT), or 3-D mammography, produces hundreds of images per patient. While this provides more information for clinicians, the exponential increase in data can result in reader fatigue and burnout, which may ultimately affect patient care.
Figure 1. R MLO view from four different years. The skin mole is marked with a circular skin marker (TomoSPOT REF# 782, Beekley Medical) on the far-left image. These images demonstrate the potential for significant variability in location of the skin lesion due to movability of the skin during positioning.