Nooijens, S.S.NooijensRamalli, A.A.RamalliIngram, M.M.IngramFournelle, M.M.FournelleBertrand, A.A.BertrandD'Hooge, J.J.D'Hooge2022-03-152022-03-152020https://publica.fraunhofer.de/handle/publica/41211610.1109/IUS46767.2020.9251385Volumetric transperineal imaging has the potential to improve motion management for external beam radiotherapy of the prostate. A fully wired, dense 2D array and a system to control such a probe is costly and not generally clinically available. Therefore, a bespoke sparse ellipsoidal array with 256 elements is proposed, allowing the use of standard ultrasound frontends for larger aperture. Based on simulated performance metrics, the array was selected from a population of potential configurations differing in element size, aperture size and ellipse eccentricity. Simulated B-Modes of the selected configuration were then compared to a dense array, which it outperformed in terms of FWHM and generalized Contrast-to-Noise ratio.en610620conference paper