Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Benjamin C. Lewis"'
Autor:
Julie-Ann Hulin, Sara Tommasi, David Elliot, Dong Gui Hu, Benjamin C. Lewis, Arduino A. Mangoni
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
Abstract Dimethylarginine dimethylaminohydrolase 1 (DDAH1) is responsible for metabolism of an endogenous inhibitor of nitric oxide synthase (NOS), asymmetric dimethylarginine (ADMA), which plays a key role in modulating angiogenesis. In addition to
Externí odkaz:
https://doaj.org/article/9458664a66d5495589105adce62f38ad
Autor:
Benjamin C. Lewis, Suzanne E. Lapi, Efrem Mebrahtu, Gordon D. Schweitzer, A. Lake Wooten, Luke A. Lawrence, Evelyn Madrid
Publikováno v:
Applied Sciences, Vol 3, Iss 3, Pp 593-613 (2013)
89Zr has emerged as a useful radioisotope for targeted molecular imaging via positron emission tomography (PET) in both animal models and humans. This isotope is particularly attractive for cancer research because its half-life (t1/2 = 3.27 days) is
Externí odkaz:
https://doaj.org/article/ba7919508d71442582ec5e37e99705d4
Publikováno v:
Case Reports in Surgery, Vol 2015 (2015)
Omental infarction can be difficult to diagnose preoperatively as imaging may be inconclusive and patients often present in a way that suggests a more common surgical pathology such as appendicitis. Here, a 40-year-old Caucasian man presented to casu
Externí odkaz:
https://doaj.org/article/05d320842dea47a38d4dc4a6a3d25620
Publikováno v:
Molecules, Vol 21, Iss 5, p 615 (2016)
Dimethylarginine dimethylaminohydrolase (DDAH) is a highly conserved hydrolytic enzyme found in numerous species, including bacteria, rodents, and humans. In humans, the DDAH-1 isoform is known to metabolize endogenous asymmetric dimethylarginine (AD
Externí odkaz:
https://doaj.org/article/11307437cfa34b1e8f8a94ebf62f5fff
Publikováno v:
PLoS ONE, Vol 12, Iss 3, p e0174351 (2017)
Manganese is essential to life, and humans typically absorb sufficient quantities of this element from a normal healthy diet; however, chronic, elevated ingestion or inhalation of manganese can be neurotoxic, potentially leading to manganism. Althoug
Externí odkaz:
https://doaj.org/article/fb8fb931f73d4342b47f43711682f3d7
Publikováno v:
Medical Physics. 48:2929-2938
PURPOSE The purpose of this study was to measure gantry angle-related eddy currents in a 0.35-T MRI-Linac and determine if B0 (zeroth order) eddy currents are the primary cause of gantry angle-dependent imaging isocenter shifts vs other potential cau
Autor:
Taeho Kim, Olga Green, Benjamin C. Lewis, Sasa Mutic, H. Michael Gach, Stacie L. Mackey, Anamaria Guta
Publikováno v:
Journal of Applied Clinical Medical Physics
Diffusion-weighted imaging (DWI) provides a valuable diagnostic tool for tumor evaluation. Yet, it is difficult to acquire daily MRI data sets in the traditional radiotherapy clinical setting due to patient burden and limited resources. However, inte
Publikováno v:
Journal of Applied Clinical Medical Physics. 22:128-136
Purpose In MRgRT, accuracy of treatment depends on the gating latency, when real-time targeting and gating is enabled. Gating latency is dependent on image acquisition, processing time, accuracy, efficacy of target tracking algorithms, and radiation
Autor:
Benjamin C. Lewis, Jaeik Shin, Borna Maraghechi, Benjamin Quinn, Mike Cole, Enzo Barberi, Jin Sung Kim, Olga Green, Taeho Kim
Publikováno v:
Journal of Applied Clinical Medical Physics. 23
Consistent quality assurance (QA) programs are vital to MR-guided radiotherapy (MRgRT), for ensuring treatment is delivered accurately and the onboard MRI system is providing the expected image quality. However, daily imaging QA with a dedicated phan
Autor:
Benjamin C. Lewis, A. Price, Thomas R. Mazur, Hyun Jik Kim, Bin Cai, Justin C. Park, Sasa Mutic, Olga L. Green, Erin J. Wittland, H. Michael Gach, Taeho Kim, Lauren E. Henke
Publikováno v:
Journal of Applied Clinical Medical Physics
To present a tumor motion control system during free breathing using direct tumor visual feedback to patients in 0.35 T magnetic resonance‐guided radiotherapy (MRgRT). We present direct tumor visualization to patients by projecting real‐time cine