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1.
Interactive image segmentation of MARS datasets using bag of features / Kanithi, Praveenkumar (Canterbury U.) ; de Ruiter, Niels J A (Canterbury U. ; Otago U. ; MARS Bioimaging) ; Amma, Maya R (Otago U.) ; Lindeman, Robert W (Canterbury U.) ; Butler, Anthony P H (Canterbury U. ; MARS ; Otago U. ; CERN) ; Butler, Philip H (Canterbury U. ; MARS Bioimaging ; Otago U. ; CERN) ; Chernoglazov, Alexander I (Canterbury U. ; MARS Bioimaging) ; Mandalika, V B H (Canterbury U. ; MARS Bioimaging) ; Adebileje, Sikiru A (Canterbury U. ; Otago U.) ; Alexander, Steven D (MARS Bioimaging) et al.
In this paper, we propose a slice-based interactive segmentation of spectral CT datasets using a bag of features method. The data is acquired from a MARS scanner which divides up the x-ray spectrum into multiple energy bins for imaging. [...]
2021 - 9 p. - Published in : IEEE Trans. Rad. Plasma Med. Sci. 5 (2021) 559 - 567
2.
Medipix3RX neutron camera for ambient radiation measurements in the CMS cavern / Bheesette, Srinidhi (Otago U. ; CERN) ; Lokhovitskiy, Arkady (CERN) ; Mallows, Sophie (CERN) ; Walsh, Michael F (MARS Bioimaging) ; Doesburg, Robert M N (MARS Bioimaging) ; Bell, Stephen T (MARS Bioimaging) ; Dabrowski, Anne (CERN) ; Butler, Anthony P H (Otago U. ; CERN ; MARS Bioimaging ; Canterbury U.) ; Butler, Philip H (Otago U. ; CERN ; MARS Bioimaging ; Canterbury U.) ; Adebileje, Sikiru A (Otago U.) et al.
We describe a CMS-Medipix3RX neutron camera developed by adapting and modifying detector readout electronics developed at the University of Canterbury. The readout electronics are part of the MARS x-ray scanner used for imaging applications [1]. [...]
2019 - 6 p. - Published in : 10.1109/NSSMIC.2018.8824390
In : 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824390
3.
Quantitative imaging of excised osteoarthritic cartilage using spectral CT / Rajendran, Kishore (Otago U.) ; Löbker, Caroline (Otago U.) ; Schon, Benjamin S (Twente U., Enschede) ; Bateman, Christopher J (Otago U.) ; Younis, Raja Aamir (Otago U.) ; de Ruiter, Niels J A (Otago U.) ; Chernoglazov, Alex I (Canterbury U.) ; Ramyar, Mohsen (Otago U.) ; Hooper, Gary J (Otago U.) ; Butler, Anthony P H (Otago U. ; CERN ; MARS Bioimaging, New Zealand) et al.
Objectives: To quantify iodine uptake in articular cartilage as a marker of glycosaminoglycan (GAG) content using multi-energy spectral CT. Methods: We incubated a 25-mm strip of excised osteoarthritic human tibial plateau in 50 % ionic iodine contrast and imaged it using a small-animal spectral scanner with a cadmium telluride photon-processing detector to quantify the iodine through the thickness of the articular cartilage. We imaged both spectroscopic phantoms and osteoarthritic tibial plateau samples. [...]
2017 - 9 p. - Published in : Eur. Radiol. 27 (2017) 384-392

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