Abstract

Three-dimensional automated breast ultrasound (ABUS) systems seem to offer excellent results in breast cancer screening tests and its early detection, comparable to handheld ultrasound B-mode scanning, with the benefit of saving physician time and reducing handheld ultrasound issues. Nevertheless, the ABUS systems are not very popular, due to the cost and very narrow application. The multi-angle conventional 3D ultrasound compound imaging method (MACUI) is intended for use with standard B-mode scanners in order to reduce cost but preserve the advantages of ABUS systems. The rotational probe movement is utilized in order to collect images for the three-dimensional reconstruction of the scanned tissue’s anatomy. The authors evaluate the capabilities to increase the scanned volume and quality of reconstructions, which are limited in current MACUI implementations, with a probe tilt and shift. The study shows and discusses the results of the imaging using different probes available for SmartUs Telemed B-Mode scanner at different scanning geometry in order to determine the capabilities of such an ultrasound imaging system. The results discussed in the paper highlight the benefits in quality improvement and scanning area obtained with tilted and shifted probes, as well as the advantages of using a relatively simple convex probe that does not incorporate software beam steering over more advanced devices.

Highlights

  • Due to its nature as a non-invasive and non-ionizing modality that does not cause additional radiation exposure, ultrasound imaging (USI) can be used as a complementary screening modality and is recommended for women with dense breast tissue in order to improve the sensitivity of screening tests [6]

  • This is a result of a different geometry of the system

  • The presented results prove that the different types of ultrasound probe that are widely available for standard handheld ultrasound evaluation can be successfully used as the imaging device in the multi-angle conventional ultrasound imaging method

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Summary

Introduction

Over the last five years, 7.8 million women have been diagnosed with breast cancer, of which 2.8 million in 2020. These numbers rank breast cancer as the most widespread cancer, affecting women of any age. Detection of breast cancer is one of the major factors in reducing mortality and has been proven successful in high-income countries [1]. The possibilities of early detection of breast malignancy can be limited due to the decreased sensitivity of a system. It is important because women with dense breasts have an increased risk of developing cancer and have a worse prognosis of interval cancer by screen-detected cancer [2,3]. Mammographic screening has limitations, such as overdiagnosis and overtreatment, [4] and, it is the only screening method, is being phased out in many countries due to its low effectiveness [5]

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