Výsledky vyhledávání - "Swetadri Vasan Setlur Nagesh"

Derivation of vascular wall shear stress from 1000 fps high-speed angiography (HSA) velocity distributions

Autor: Allison Shields, Swetadri Vasan Setlur Nagesh, Venkat Keshav Chivukula, Ciprian N. Ionita, Daniel Bednarek, Stephen Rudin

Publikováno v: Proc SPIE Int Soc Opt Eng

Pathological changes in blood flow lead to altered hemodynamic forces, which are responsible for a number of conditions related to the remodeling and regeneration of the vasculature. More specifically, wall shear stress (WSS) has been shown to be a s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b0a1fd69fa5ce3d795e50e3ed992359
https://pubmed.ncbi.nlm.nih.gov/36034106

Zobrazit plný text záznamu

Use of 1000fps High Speed X-ray Angiography (HSAngio) to quantify differences in flow diversion effects of three stents with different coverage densities in a cerebral aneurysm invitro model

Autor: Swetadri Vasan Setlur Nagesh, Allison Shields, Xinlin Wu, Ciprian N. Ionita, Daniel R. Bednarek, Stephen Rudin

Publikováno v: Proc SPIE Int Soc Opt Eng

High temporal resolution images acquired using 1000fps HSAngio can be used to visualize blood flow patterns and derive flow velocities during neurointerventional procedures. In this work we use this technology to quantify the changes in the blood flo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abee78ba35223689fe6e7129ee13e2f9
https://pubmed.ncbi.nlm.nih.gov/35982767

Zobrazit plný text záznamu

Simultaneous Biplane High Speed 1000 fps X-ray Angiography (HSAngio)

Autor: Swetadri Vasan Setlur Nagesh, Allison Shields, Xinlin Wu, Ciprian N. Ionita, Daniel R. Bednarek, Stephen Rudin

Publikováno v: Proc SPIE Int Soc Opt Eng

High-speed 1000-fps x-ray Angiography (HSAngio) images can be used to visualize blood-flow patterns and derive flow velocities during neurointerventional procedures. In this work, we present for the very first-time, orthogonal views of contrast injec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7f89ad2910b33056dce7e10de161bfd
https://pubmed.ncbi.nlm.nih.gov/35982765

Zobrazit plný text záznamu

High-Definition Zoom Mode, a High-Resolution X-Ray Microscope for Neurointerventional Treatment Procedures: A Blinded-Rater Clinical-Utility Study

Autor: Daniel R. Bednarek, Vernard Fennel, Stephen Rudin, Ciprian N. Ionita, Jason M Davies, Adnan H. Siddiqui, Jordan M. Krebs, Maxim Mokin, Swetadri Vasan Setlur Nagesh

Publikováno v: American Journal of Neuroradiology. 40:302-308

BACKGROUND AND PURPOSE: Quality of visualization of treatment devices during critical stages of endovascular interventions, can directly impact their safety and efficacy. Our aim was to compare the visualization of neurointerventional procedures and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f646e5d12a6015657b48406e5cb199c
https://doi.org/10.3174/ajnr.a5922

Zobrazit plný text záznamu

Characterization of velocity patterns produced by pulsatile and constant flows using 1000 fps high-speed angiography (HSA)

Autor: Stephen Rudin, Allison Shields, Daniel R. Bednarek, Ciprian N. Ionita, Swetadri Vasan Setlur Nagesh

Publikováno v: Proc SPIE Int Soc Opt Eng

In order to accurately quantify rapidly changing blood flow velocities, as typically seen in the neurovasculature, high temporal resolution is necessary. Current methods to extract velocity data from angiographic image sequences are generally limited

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::688ed64ea9f85126c22f158bd781a194
https://doi.org/10.1117/12.2580888

Zobrazit plný text záznamu

Evaluation of methods to derive blood flow velocity from 1000 fps high-speed angiographic sequences (HSA) using optical flow (OF) and computational fluid dynamics (CFD)

Autor: Ciprian N. Ionita, Stephen Rudin, Daniel R. Bednarek, Allison Shields, Swetadri Vasan Setlur Nagesh

Publikováno v: Proc SPIE Int Soc Opt Eng

Digital Subtraction Angiography (DSA) is considered the gold standard for imaging and guiding treatment of neurovascular lesions, such as cerebral aneurysms and carotid stenoses. Though DSA can show high-resolution morphology, it remains difficult to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::580d1127c21328e8ec83aba34f58c46e
https://europepmc.org/articles/PMC8018699/

Zobrazit plný text záznamu

Design and Physical Properties of 3-Dimensional Printed Models Used for Neurointervention: A Systematic Review of the Literature

Autor: Maxim Mokin, Swetadri Vasan Setlur Nagesh, Adnan H. Siddiqui, Jason M Davies, Muhammad Waqas, Kenneth V. Snyder, Kunal Vakharia, Jaims Lim, Ciprian N. Ionita, Karen M Meess, Michael Springer, Elad I. Levy, Liza C Gutierrez, Richard W Ducharme

Publikováno v: Neurosurgery

Background Three-dimensional (3D) printing has revolutionized training, education, and device testing. Understanding the design and physical properties of 3D-printed models is important. Objective To systematically review the design, physical propert

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b988f670ddb8242d7e07461a00356aff
https://europepmc.org/articles/PMC8101092/

Zobrazit plný text záznamu

The effect on patient dose and image quality of simultaneous acquisition of high-resolution small field of view (FOV) and regular-resolution large FOV imaging modes of a dual-resolution imaging detector

Autor: Stephen Rudin, Swetadri Vasan Setlur Nagesh, Daniel R. Bednarek

Publikováno v: Medical Imaging 2020: Physics of Medical Imaging.

A new imaging x-ray detector with 194μm pixel conventional FPD imaging mode for large area visualization with detector field-of-views (FOV) ranging from 12 inch to 6 inch and a 76μm pixel high resolution high-definition (Hi-Def) zoom mode for small

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9857083b3f36f696923ce1b9d1e1bf6b
https://doi.org/10.1117/12.2549244

Zobrazit plný text záznamu

Quantifying the effects of stenosis on blood flow using 1000 fps High-Speed Angiography (HSA)

Autor: Daniel R. Bednarek, Swetadri Vasan Setlur Nagesh, Stephen Rudin, Lauren M. Shepard, Jordan M. Krebs, Allison Shields, Ciprian N. Ionita

Publikováno v: Medical Imaging: Biomedical Applications in Molecular, Structural, and Functional Imaging

Vascular pathologies such as stenosis cause changes in blood flow patterns and rates in patient vasculature. These changes are difficult to observe using conventional x-ray imaging techniques that typically operate at no more than 30 fps. However, 10

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea3966dc0854b6958c901793e90a0138
https://doi.org/10.1117/12.2549062

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání