Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Izabella Barreto"'
Autor:
Peng Liu, Linsong Xu, Garrett Fullerton, Yao Xiao, James-Bond Nguyen, Zhongyu Li, Izabella Barreto, Catherine Olguin, Ruogu Fang
Publikováno v:
Frontiers in Radiology, Vol 2 (2022)
A body of studies has proposed to obtain high-quality images from low-dose and noisy Computed Tomography (CT) scans for radiation reduction. However, these studies are designed for population-level data without considering the variation in CT devices
Externí odkaz:
https://doaj.org/article/6dd5709ba4e541c48eb34a6743977418
Autor:
Silvio Musman, Valéria Maria de Azeredo Passos, Izabella Barreto Romualdo Silva, Sandhi Maria Barreto
Publikováno v:
Jornal Brasileiro de Pneumologia, Vol 37, Iss 1, Pp 75-84 (2011)
OBJETIVO: Testar um modelo de predição para apneia do sono a partir de variáveis sociodemográficas e clínicas em uma população com suspeita de distúrbio do sono e submetida à polissonografia. MÉTODOS: Foram incluídos no estudo 323 paciente
Externí odkaz:
https://doaj.org/article/4170810c4fd84564ba6d86ed345ebf4d
Publikováno v:
Nanoscale Advances.
Dual imaging agents containing individual hafnia and iron oxide nanoparticles were formulated and evaluation suggests that they are suitable imaging agent candidates for both computed tomography and magnetic particle imaging.
Autor:
Izabella Barreto, T Mauceri, Antonio L. Damato, Christopher L. Deufel, Jennifer Pursley, Gil'ad N. Cohen, Liana Mulet
Publikováno v:
Brachytherapy. 21:120-127
Purpose This is a multi-institutional report on inter-observer and inter-instrument variation in the calibration of the absorbed dose rate for a planar 32P beta emitting brachytherapy source. Measurement accuracy is essential since the dose profile i
Autor:
Jessica A. Ching, Dhanashree Rajderkar, Ibrahim Sacit Tuna, Izabella Barreto, Lance S. Governale
Publikováno v:
Pediatric Radiology. 52:85-96
Children with craniosynostosis may undergo multiple computed tomography (CT) examinations for diagnosis and post-treatment follow-up, resulting in cumulative radiation exposure. To reduce the risks associated with radiation exposure, we evaluated the
Publikováno v:
Journal of applied clinical medical physicsREFERENCES.
To estimate the minimum iodine concentrations detectable in simulated vessels of various diameters for both subtraction computed tomography (CT) and dual-energy CT systems.Fillable tubes (diameters: 1, 3, and 5 mm) were filled with a variety of iodin
Autor:
Stephanie Leon, Robert J. Kobistek, Zhongwei Zhang, Edmond Olguin, Bryan C. Schwarz, Izabella Barreto
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose Most clinical computed tomography (CT) protocols use helical scanning; however, the traditional method for CTDIvol measurement replaces the helical protocol with an axial scan, which is not easily accomplished on many scanners and may lead to
Autor:
Tan-Lucien H. Mohammed, Nathan Quails, Catherine Olguin, Nathalie Correa, Izabella Barreto, Nupur Verma
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose We compare the effect of tube current modulation (TCM) and fixed tube current (FTC) on size‐specific dose estimates (SSDE) and image quality in lung cancer screening with low‐dose CT (LDCT) for patients of all sizes. Methods Initially, 10
Autor:
Manuel Arreola, Izabella Barreto, Nathan Quails, Rebecca H. Lamoureux, Nathalie Correa, L Rill, Catherine Olguin
Publikováno v:
Journal of Applied Clinical Medical Physics
The purpose of this study was to investigate the frequency and impact of vertical mis‐centering on organ doses in computed tomography (CT) exams and evaluate the effect of a commercially available positioning compensation system (PCS). Mis‐center
Autor:
Liana, Mulet, Izabella, Barreto, Gil'ad N, Cohen, Antonio L, Damato, Thomas, Mauceri, Jennifer, Pursley, Christopher L, Deufel
Publikováno v:
Brachytherapy
PURPOSE: This is a multi-institutional report on inter-observer and inter-instrument variation in the calibration of the absorbed dose rate for a planar (32)P beta emitting brachytherapy source. Measurement accuracy is essential since the dose profil