Abstract
Wavelia is a low-power electromagnetic wave breast imaging device for breast cancer diagnosis, which consists of two subsystems, both performing non-invasive examinations: the Microwave Breast Imaging (MBI) subsystem and the Optical Breast Contour Detection (OBCD) subsystem. The Wavelia OBCD subsystem is a 3D scanning device using an infrared 3D stereoscopic camera, which performs an azimuthal scan to acquire 3D point clouds of the external surface of the breast. The OBCD subsystem aims at reconstructing fully the external envelope of the breast, with high precision, to provide the total volume of the breast and morphological data as a priori information to the MBI subsystem. This paper presents a new shape-based calibration procedure for turntable-based 3D scanning devices, a new 3D breast surface reconstruction method based on a linear stretching function, as well as the breast volume computation method that have been developed and integrated with the Wavelia OBCD subsystem, before its installation at the Clinical Research Facility of Galway (CRFG), in Ireland, for first-in-human clinical testing. Indicative results of the Wavelia OBCD subsystem both from scans of experimental breast phantoms and from patient scans are thoroughly presented and discussed in the paper.
Highlights
Wavelia is a prototype medical device which has recently been developed by MVG Industries.The purpose of Wavelia is to offer an alternative and/or complementary imaging modality to X-ray mammography for breast cancer diagnosis
Several tests of the calibration procedure have been performed with the Wavelia Optical Breast Contour Detection (OBCD) subsystem
D Breast Surface Reconstruction: Indicative Results from the First Ten Patient Scans In Figures 33 and 34, the reconstructed breast surfaces using the Wavelia OBCD subsystem are shown for the ten first patients enrolled in the on-going first in-human clinical investigation of the Wavelia system, at Galway University Hospital
Summary
Wavelia is a prototype medical device which has recently been developed by MVG Industries. The purpose of Wavelia is to offer an alternative and/or complementary imaging modality to X-ray mammography for breast cancer diagnosis. As it involves microwave technology, so non-ionizing radiation, it may allow for diagnosis and follow-up of rapidly evolving pathologies by making it possible to safely schedule regular 3D scans of the breast as often as required [1,2]. Given the incorporated radar detection technology [3], this novel imaging modality is meant to provide the clinicians with a useful tool for automated Computer-Aided Diagnosis (CAD). A detailed presentation of the actual R&D status of the system has been reported in [3]
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