Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Scott Dianis"'
Autor:
Kai Erik Thomenius, Valgerdur G. Halldorsdottir, Yu He, Priscilla Machado, Suhyun Park, Scott Dianis, Ji-Bin Liu, Hongjia Zhao, Jaydev K. Dave, Kirk D. Wallace, Anush Sridharan, Flemming Forsberg, John R. Eisenbrey
Publikováno v:
Investigative Radiology. 48:654-660
OBJECTIVES The ability to estimate tissue perfusion (in milliliter per minute per gram) in vivo using contrast-enhanced 3-dimensional (3D) harmonic and subharmonic ultrasound imaging was investigated. MATERIALS AND METHODS A LOGIQ™ 9 scanner (GE He
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab313d06563cdd72735ff948302238d2
https://doi.org/10.1097/rli.0b013e3182925160
https://doi.org/10.1097/rli.0b013e3182925160
Autor:
Kai Erik Thomenius, Valgerdur G. Halldorsdottir, Scott Dianis, Anush Sridharan, Flemming Forsberg, Ji-Bin Liu, John R. Eisenbrey, Priscilla Machado, Jaydev K. Dave, Hongjia Zhao, Suhyun Park, Kirk D. Wallace
Publikováno v:
Academic Radiology. 19:732-739
Rationale and Objectives Although contrast-enhanced ultrasound imaging techniques such as harmonic imaging (HI) have evolved to reduce tissue signals using the nonlinear properties of the contrast agent, levels of background suppression have been mix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffa97990610c069609624eed47331949
https://doi.org/10.1016/j.acra.2012.02.015
https://doi.org/10.1016/j.acra.2012.02.015
Autor:
Flemming Forsberg, Daniel B. Brown, John R. Eisenbrey, Suhyun Park, Kai Erik Thomenius, Carl L. Chalek, Cynthia Miller, Valgerdur G. Halldorsdottir, Scott Dianis, Daniel A. Merton, J.B. Liu, Victor Navarro, Priscilla Machado, Jose M. Gonzalez, Jaydev K. Dave
Publikováno v:
Ultrasonics. 51:890-897
To demonstrate the feasibility of simultaneous dual fundamental grayscale and subharmonic imaging on a modified commercial scanner.The ability to generate signals at half the insonation frequency is exclusive to ultrasound contrast agents (UCA). Thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd5edebfafe24a3d4ccd98c5a340645e
https://doi.org/10.1016/j.ultras.2011.05.003
https://doi.org/10.1016/j.ultras.2011.05.003
Publikováno v:
Journal of Biomedical Materials Research Part A. :485-494
Several recent studies have shown that cells respond to the elastic modulus and elasticity gradients on soft substrates. However, traditional macroscale methods for measuring elastic modulus cannot resolve elastic gradients or differences between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db6b10c015a93eb0b00764670f12f641
https://doi.org/10.1002/jbm.a.30812
https://doi.org/10.1002/jbm.a.30812
Autor:
Suhyun Park, Carl L. Chalek, Jeffrey P. Baliff, John R. Eisenbrey, Priscilla Machado, Jose M. Gonzalez, Cynthia Miller, Daniel A. Merton, Scott Dianis, Jaydev K. Dave, Kai Erik Thomenius, Valgerdur G. Halldorsdottir, Christopher E. Kim, Victor Navarro, Flemming Forsberg, Daniel B. Brown
Publikováno v:
Radiology. 268(2)
To compare subharmonic aided pressure estimation (SHAPE) with pressure catheter-based measurements in human patients with chronic liver disease undergoing transjugular liver biopsy.This HIPAA-compliant study had U.S. Food and Drug Administration and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52784bf2dea12f07243740695a54b6a0
https://pubmed.ncbi.nlm.nih.gov/23525208
https://pubmed.ncbi.nlm.nih.gov/23525208
Autor:
Suhyun Park, Flemming Forsberg, Daniel B. Brown, Carl L. Chalek, Priscilla Machado, Hongjia Zhao, Daniel A. Merton, Kai Erik Thomenius, John R. Eisenbrey, Scott Dianis, Valgerdur G. Halldorsdottir, Ji-Bin Liu, Jaydev K. Dave
Publikováno v:
Ultrasonics. 53(4)
Incident acoustic output (IAO) dependent subharmonic signal amplitudes from ultrasound contrast agents can be categorized into occurrence, growth or saturation stages. Subharmonic aided pressure estimation (SHAPE) is a technique that utilizes growth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74b786f10038b4a0752ca7c8206b8511
https://pubmed.ncbi.nlm.nih.gov/23347593
https://pubmed.ncbi.nlm.nih.gov/23347593
Autor:
Ji-Bin Liu, Kai Erik Thomenius, John R. Eisenbrey, Kirk D. Wallace, Scott Dianis, Suhyun Park, Flemming Forsberg, Anush Sridharan, Priscilla Machado
Publikováno v:
2012 IEEE International Ultrasonics Symposium.
Under sufficient acoustic excitation microbubble-based ultrasound contrast agents (UCA) produce a marked subharmonic (f0/2) frequency component. By selectively receiving at the subharmonic, it is possible to perform UCA specific subharmonic imaging (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfffab19c7304887c4cda9eeebd1974e
https://doi.org/10.1109/ultsym.2012.0274
https://doi.org/10.1109/ultsym.2012.0274
Autor:
Suhyun Park, John R. Eisenbrey, Daniel A. Merton, J.B. Liu, Anush Sridharan, Priscilla Machado, Kirk D. Wallace, Kai Erik Thomenius, Flemming Forsberg, Scott Dianis, Carl L. Chalek
Publikováno v:
2012 IEEE International Ultrasonics Symposium.
Subharmonic imaging (SHI) improves the isolation of ultrasound contrast agent signals from the surrounding tissue signals by transmitting at f0 and receiving at f0/2. In this study we investigated the feasibility of generating real-time 3D (i.e., 4D)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::812933f4d7ec341c7176a2609d888202
https://doi.org/10.1109/ultsym.2012.0275
https://doi.org/10.1109/ultsym.2012.0275
Autor:
Valgerdur G. Halldorsdottir, Daniel A. Merton, Hsin-Kai Wang, Feng Lin, Suhyun Park, Kai Erik Thomenius, Jian-Hua Zhou, Flemming Forsberg, Daniel B. Brown, Carl L. Chalek, John R. Eisenbrey, Scott Dianis, Ji-Bin Liu, Jaydev K. Dave
Publikováno v:
2012 IEEE International Ultrasonics Symposium.
In this work, the efficacy of subharmonic aided pressure estimation to detect portal hypertension (PH; i.e., portal vein (PV) pressures > 6-10 mmHg) is investigated. A Logiq 9 ultrasound scanner (GE Healthcare, Milwaukee, WI) with a 4C probe (transmi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22216414d75a6112bb01106fae380ee7
https://doi.org/10.1109/ultsym.2012.0163
https://doi.org/10.1109/ultsym.2012.0163
Autor:
Jaydev K. Dave, Carl L. Chalek, John R. Eisenbrey, Daniel A. Merton, Valgerdur G. Halldorsdottir, J.B. Liu, Scott Dianis, Jian-Hua Zhou, Flemming Forsberg, Daniel B. Brown, Suhyun Park, Hsin Kai Wang, Feng Lin, Kai Erik Thomenius
Publikováno v:
Ultrasound in medicinebiology. 38(10)
The efficacy of using subharmonic emissions from Sonazoid microbubbles (GE Healthcare, Oslo, Norway) to track portal vein pressures and pressure changes was investigated in 14 canines using either slow- or high-flow models of portal hypertension (PH)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4960c3f3b76851bcab02e3579555c20a
https://pubmed.ncbi.nlm.nih.gov/22920550
https://pubmed.ncbi.nlm.nih.gov/22920550