Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Shireen Geimer"'
Autor:
Jan Sebek, William K. C. Park, Shireen Geimer, Douglas W. Van Citters, Alexandra Farah, Damian E. Dupuy, Paul M. Meaney, Punit Prakash
Publikováno v:
International Journal of Hyperthermia, Vol 40, Iss 1 (2023)
AbstractPurpose To develop a computational model of microwave ablation (MWA) with a thermal accelerant gel and apply the model toward interpreting experimental observations in ex vivo bovine and in vivo porcine liver.Methods A 3D coupled electromagne
Externí odkaz:
https://doaj.org/article/4756d2937f9b42499aae538ce57fd174
Publikováno v:
Sensors, Vol 22, Iss 19, p 7353 (2022)
In microwave imaging, the effects of skin on recovering property distributions of tissue underneath the surface may be significant because it has high dielectric contrast with subcutaneous fat, which inevitably causes significant signal reflections.
Externí odkaz:
https://doaj.org/article/244504fca33345c8931bc36074afd5cf
Publikováno v:
Sensors, Vol 21, Iss 3, p 729 (2021)
This paper focuses on the construction of the Jacobian matrix required in tomographic reconstruction algorithms. In microwave tomography, computing the forward solutions during the iterative reconstruction process impacts the accuracy and computation
Externí odkaz:
https://doaj.org/article/0c7b70762a2547b2b4e00cd5787a2e02
Autor:
Paul Meaney, Alexander Hartov, Timothy Raynolds, Cynthia Davis, Sebastian Richter, Florian Schoenberger, Shireen Geimer, Keith Paulsen
Publikováno v:
Sensors, Vol 20, Iss 18, p 5436 (2020)
We have developed a multichannel software defined radio-based transceiver measurement system for use in general microwave tomographic applications. The unit is compact enough to fit conveniently underneath the current illumination tank of the Dartmou
Externí odkaz:
https://doaj.org/article/b30c7e0c6bb042b79b94ac3bbf3d4d22
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4811ae5fd2b07937c70d0d19510e2cd
https://doi.org/10.23919/eucap57121.2023.10133692
https://doi.org/10.23919/eucap57121.2023.10133692
Autor:
Paul, Meaney, Timothy, Raynolds, Shireen, Geimer, Grace, Player, Xiaoyu, Yang, Keith, Paulsen
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
We have developed a microwave imaging device for breast cancer imaging that can be used concurrently inside an MR imaging system. The microwave measurement system is comprised of a horizontal array of 16 monopole antennas that can be moved vertically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f4d591015c560b3b11f7846334b9c6d
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886820
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886820
Autor:
Xiaoyu, Yang, Thomas, Eastlake, Tsinghua, Zheng, Shireen, Geimer, Timothy, Raynolds, Paul, Meaney, Keith, Paulsen
Publikováno v:
Proc Int Soc Magn Reson Med Sci Meet Exhib Int Soc Magn Reson Med Sci Meet Exhib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9aba3c5d3bac5d517dbc29848f296cf7
https://pubmed.ncbi.nlm.nih.gov/34305465
https://pubmed.ncbi.nlm.nih.gov/34305465
Publikováno v:
2018 IEEE Conference on Antenna Measurements & Applications (CAMA).
Distinguishing the effects of multipath signals from desired ones is often a challenging proposition. In this paper, we present two examples where multipath signals have impacted the desired signals. In each case, solutions were found to either furth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3894b3d64a5808bc06860be5321881b6
https://doi.org/10.1109/cama.2018.8530534
https://doi.org/10.1109/cama.2018.8530534
Publikováno v:
2018 IEEE Conference on Antenna Measurements & Applications (CAMA).
We have reconstructed microwave tomographic images utilizing a Gauss-Newton scheme with a log transformation. While the recovered images are quite good, we have analyzed the behavior of the associated Jacobian, or sensitivity, matrix with respect to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9137c9079cd5f15ccefa819290c5085c
https://doi.org/10.1109/cama.2018.8530594
https://doi.org/10.1109/cama.2018.8530594