Abstract
Currently, breast cancer is one of the most common cancers in women all over the world. A novel 3D breast ultrasound imaging ring system using the linear array transducer is proposed to decrease costs, reduce processing difficulties, and improve patient comfort as compared to modern day breast screening systems. The 1 × 128 Piezoelectric Micromachined Ultrasonic Transducer (PMUT) linear array is placed 90 degrees cross-vertically. The transducer surrounds the mammary gland, which allows for non-contact detection. Once the experimental platform is built, the breast model is placed through the electric rotary table opening and into a water tank that is at a constant temperature of 32 °C. The electric rotary table performs a 360° scan either automatically or mechanically. Pulse echo signals are captured through a circular scanning method at discrete angles. Subsequently, an ultrasonic tomography algorithm is designed, and a horizontal slice imaging is realized. The experimental results indicate that the preliminary detection of mass is realized by using this ring system. Circular scanning imaging is obtained by using a rotatable linear array instead of a cylindrical array, which allows the size and location of the mass to be recognized. The resolution of breast imaging is improved through the adjustment of the angle interval (>0.05°) and multiple slices are gained through different transducer array elements (1 × 128). These results validate the feasibility of the system design as well as the algorithm, and encourage us to implement our concept with a clinical study in the future.
Highlights
Breast cancer is the most common cancer in women worldwide
Scanning is accomplished with the electric rotary table moving the slice transducer assembly to the fixed device, whereupon the and transducer assembly begins continuously acquired using linear scanning method at a fixed angle a horizontal slice is obtained through assembly to the polymethyl methacrylate methacrylate (PMMA) fixed device, whereupon the transducer assembly begins continuously acquiring ultrasound signals the transducer rotates
InInthis section, ultrasound tomography imaging of an iron model different shapes were obtained obtained by circular scanning using the ring system
Summary
Breast cancer is the most common cancer in women worldwide. To decrease the mortality rate of breast cancer, detection in the early stages with screening is crucial [1,2]. Mammography, hand-held ultrasound, computerized tomography (CT) and magnetic resonance imaging (MRI) are commonly used methods for breast-cancer screening [3]. Many of these methods expose the examinee to harmful radiation and compression pain. The B-Mode ultrasonic tomography is used thisproject, project, a ultrasound In this a 3D imaging ring system using piezoelectric micro-machined ultrasonic ultrasonic transducer (PMUT). It consists of the personal computer workstation, four linear ultrasonic transducer linear arrays, an electric rotary table and its controller, the storage water tank, ultrasonic signal transmitting and receiving receiving circuits, circuits, and and aa constant constant temperature temperature heater
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