Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Elisabeth R. Shanblatt"'
Autor:
Francis I. Baffour, Nathan R. Huber, Andrea Ferrero, Kishore Rajendran, Katrina N. Glazebrook, Nicholas B. Larson, Shaji Kumar, Joselle M. Cook, Shuai Leng, Elisabeth R. Shanblatt, Cynthia H. McCollough, Joel G. Fletcher
Publikováno v:
Radiology. 306:229-236
Background Photon-counting detector (PCD) CT and deep learning noise reduction may improve spatial resolution at lower radiation doses compared with energy-integrating detector (EID) CT. Purpose To demonstrate the diagnostic impact of improved spatia
Autor:
Avinash K. Nehra, Kishore Rajendran, Francis I. Baffour, Achille Mileto, Prabhakar Shantha Rajiah, Kelly K. Horst, Akitoshi Inoue, Tucker F. Johnson, Felix E. Diehn, Katrina N. Glazebrook, Jamison E. Thorne, Nikkole M. Weber, Elisabeth R. Shanblatt, Hao Gong, Lifeng Yu, Shuai Leng, Cynthia H. McCollough, Joel G. Fletcher
Publikováno v:
RadioGraphics. 43
Autor:
Akitoshi Inoue, Tucker F. Johnson, Darin White, Christian W. Cox, Thomas E. Hartman, Jamison E. Thorne, Elisabeth R. Shanblatt, Matthew P. Johnson, Rickey E. Carter, Yong S. Lee, Kishore Rajendran, Shuai Leng, Cynthia H. McCollough, Joel G. Fletcher
Publikováno v:
Investigative radiology. 57(11)
The aim of this study was to evaluate the clinical impact of a higher spatial resolution, full field-of-view investigational photon-counting detector computed tomography (PCD-CT) on radiologist confidence in imaging findings and diagnosis of usual in
Publikováno v:
Medical Physics. 48:1327-1340
PURPOSE Talbot-Lau grating interferometry enables the use of polychromatic x-ray sources, extending the range of potential applications amenable to phase contrast imaging. However, these sources introduce beam hardening effects not only from the samp
Autor:
Yongjin Sung, Rajiv Gupta, William Graves, Brandon J. Nelson, Elisabeth R. Shanblatt, Cynthia H. McCollough
Publikováno v:
Medical Physics. 47:5761-5771
PURPOSE Demonstrate realistic simulation of grating-based x-ray phase-contrast imaging (GB-XPCI) using wave optics and the four-dimensional Mouse Whole Body (MOBY) phantom defined with non-uniform rational B-splines (NURBS). METHODS We use a full-wav
Autor:
Kishore Rajendran, Martin Petersilka, André Henning, Elisabeth R. Shanblatt, Bernhard Schmidt, Thomas G. Flohr, Andrea Ferrero, Francis Baffour, Felix E. Diehn, Lifeng Yu, Prabhakar Rajiah, Joel G. Fletcher, Shuai Leng, Cynthia H. McCollough
Publikováno v:
Radiology. 303(1)
Background The first clinical CT system to use photon-counting detector (PCD) technology has become available for patient care. Purpose To assess the technical performance of the PCD CT system with use of phantoms and representative participant exami
Autor:
Thomas Flohr, Kishore Rajendran, Shuai Leng, Bernhard Schmidt, Jamison Thorne, Martin Petersilka, Cynthia H. McCollough, Jeffrey F. Marsh, Elisabeth R. Shanblatt, Andre Henning, Joel G. Fletcher
Publikováno v:
Physics in medicine and biology
We report a comprehensive evaluation of a full field-of-view (FOV) photon-counting detector (PCD) computed tomography (CT) system using phantoms, and qualitatively assess image quality in patient examples. A whole-body PCD-CT system with 50 cm FOV, 5
Autor:
Martin Petersilka, Kishore Rajendran, Shuai Leng, Andre Henning, Cynthia H. McCollough, Jeffrey F. Marsh, Elisabeth R. Shanblatt, Bernhard Schmidt, Joel G. Fletcher, Thomas Flohr
Publikováno v:
Proc SPIE Int Soc Opt Eng
Computed tomography (CT) using photon-counting detectors (PCD) offers dose-efficient ultra-high-resolution imaging, high iodine contrast-to-noise ratio, multi-energy and material decomposition capabilities. We have previously demonstrated the potenti
Autor:
Daniel E. Adams, Christina L. Porter, Giulia F. Mancini, Margaret M. Murnane, Dennis F. Gardner, Benjamin R. Galloway, Elisabeth R. Shanblatt, Xiaoshi Zhang, Henry C. Kapteyn, Michael Tanksalvala, Robert Karl, Charles Bevis
Publikováno v:
Nature Photonics. 11:259-263
Coherent diffractive imaging of periodic samples is demonstrated with a tabletop, 13.5 nm high-harmonic source. With a novel image reconstruction technique, the record high spatial resolution of 12.6 nm is achieved in the extreme-ultraviolet region.
Forward model for propagation-based x-ray phase contrast imaging in parallel- and cone-beam geometry
Autor:
Shuai Leng, Brandon J. Nelson, William Graves, Yongjin Sung, Rajiv Gupta, Elisabeth R. Shanblatt, Cynthia H. McCollough
Publikováno v:
Optics express. 27(4)
We demonstrate a fast, flexible, and accurate paraxial wave propagation model to serve as a forward model for propagation-based X-ray phase contrast imaging (XPCI) in parallel-beam or cone-beam geometry. This model incorporates geometric cone-beam ef