Penumbra-Effect Induced Spectral Mixing in X-ray Computed Tomography: A Multi-Ray Spectrum Estimation Model and Subsampled Weighting Algorithm

Autor: Deng, Yifan, Zhou, Hao, Gao, Hewei

Purpose: With the development of spectral CT, several novel spectral filters have been introduced to modulate the spectra, such as split filters and spectral modulators. However, due to the finite size of the focal spot of X-ray source, these filters

Externí odkaz: http://arxiv.org/abs/2411.01543

Three-dimensional numerical schemes for the segmentation of the psoas muscle in X-ray computed tomography images.

Autor: Paolucci G; MIDA, Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, Genova, 16145, Italy., Cama I; MIDA, Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, Genova, 16145, Italy., Campi C; MIDA, Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, Genova, 16145, Italy.; IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, Genova, 16132, Italy., Piana M; MIDA, Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, Genova, 16145, Italy. piana@dima.unige.it.; IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, Genova, 16132, Italy. piana@dima.unige.it.

Publikováno v: BMC medical imaging [BMC Med Imaging] 2024 Sep 19; Vol. 24 (1), pp. 251. Date of Electronic Publication: 2024 Sep 19.

Experimental observation of cavity-free ice-free isochoric vitrification via combined pressure measurements and photon counting x-ray computed tomography.

Autor: Ali AM; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA., Chang B; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA., Consiglio AN; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA., Sanchez Van Moer G; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA., Powell-Palm MJ; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA; J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA; Department of Materials Science and Engineering, Texas A&M University, College Station, TX, USA., Rubinsky B; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA., Mäkiharju SA; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, USA. Electronic address: makiharju@berkeley.edu.

Publikováno v: Cryobiology [Cryobiology] 2024 Sep; Vol. 116, pp. 104935. Date of Electronic Publication: 2024 Jul 06.

Evaluation of hafnium oxide nanoparticles imaging characteristics as a contrast agent in X-ray computed tomography.

Autor: Safari A; Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran. arash.safari1985@gmail.com.; Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran. arash.safari1985@gmail.com., Mahdavi M; Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.; Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran., Fardid R; Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.; Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran., Oveisi A; Department of Chemistry, Faculty of Sciences, University of Zabol, P.O. Box: 98615-538, Zabol, Iran. aroveisi@uoz.ac.ir., Jalli R; Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran., Haghani M; Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran. m.haghani4744@yahoo.com.; Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran. m.haghani4744@yahoo.com.

Publikováno v: Radiological physics and technology [Radiol Phys Technol] 2024 Jun; Vol. 17 (2), pp. 441-450. Date of Electronic Publication: 2024 Apr 17.