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27 February 2019 The Twente Photoacoustic Mammoscope 2: 3D vascular network visualization
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Abstract
We present the Twente Photoacoustic Mammoscope 2 (PAM 2) based on a 3D tomographic geometry. A functional optical contrast map of breast vascularization can be obtained in a noninvasive, radiation-free and painless manner. A woman lies prone on a bed with one breast pendant in an imaging tank with water, where 12 curved ultrasound arrays are mounted. Each array extends from chest wall towards the nipple following the contour of the pendant breast, and carries 32 detector elements. The detectors’ center frequency is 1 MHz. The breast is illuminated from multiple directions: the ventral side of the breast from the bottom and the areas close to the chest wall from the sides. The excitation wavelengths are 755 nm and 1064 nm. By rotating the imaging tank in between measurements, multiple projections can be obtained, providing a 3D image of the breast after reconstruction by means of a filtered backprojection. So far, breasts of healthy volunteers were imaged. Three-dimensional images of the breast contour, the nipple and blood vessel networks within the breast could be observed with high contrast and unprecedented detail.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sjoukje M. Schoustra, Roeland Huijink, Laurens Alink, Tim J.P. M. op 't Root, Daan Sprünken, Daniele Piras, Wouter F. Muller Kobold, Caroline A. H. Klazen, Margreet C. van der Schaaf, Frank M. van den Engh, Wiendelt Steenbergen, and Srirang Manohar "The Twente Photoacoustic Mammoscope 2: 3D vascular network visualization", Proc. SPIE 10878, Photons Plus Ultrasound: Imaging and Sensing 2019, 1087813 (27 February 2019); https://doi.org/10.1117/12.2507448
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