Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Michael T, Tomkowiak"'
Autor:
Amish N. Raval, Jordan M. Slagowski, Tobias Funk, Charles R. Hatt, Michael A. Speidel, Michael T. Tomkowiak, David Dunkerley
Publikováno v:
Medical Physics. 42:7022-7033
Purpose: Image registration between standard x-ray fluoroscopy and transesophageal echocardiography (TEE) has recently been proposed. Scanning-beam digital x-ray (SBDX) is an inverse geometry fluoroscopy system designed for cardiac procedures. This s
Autor:
Jaehyup Kim, Karl K. Vigen, Michael T. Tomkowiak, Denise J. Schwahn, Charles R. Hatt, Peiman Hematti, Eric G. Schmuck, Cathlyn Leitzke, Timothy A. Hacker, Jill M. Koch, Derek J. Hei, Amish N. Raval, Nicholas Hendren, John M. Centanni, Ying qi Zhao, Zhanhai Li
Publikováno v:
Journal of Cardiovascular Translational Research. 8:438-448
The aim of this study is to determine the effects of early intravenous (IV) infusion later followed by transendocardial (TE) injection of allogeneic mesenchymal stem cells (MSCs) following myocardial infarction (MI). Twenty-four swine underwent ballo
Publikováno v:
Medical Physics. 38:283-293
Purpose: Quantitative coronary angiography (QCA) can be used to support device size selection for cardiovascular interventions. The accuracy of QCA measurements using conventional x-ray fluoroscopy depends on proper calibration using a reference obje
Publikováno v:
Medical Physics. 37:6377-6389
Purpose: Scanning beam digital x-ray (SBDX) is an inverse geometry fluoroscopic system with high dose efficiency and the ability to perform continuous real-time tomosynthesis at multiple planes. This study describes a tomosynthesis-based method for 3
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 9412
This study investigates the feasibility of obtaining CT-derived 3D surfaces from data provided by the scanning-beam digital x-ray (SBDX) system. Simulated SBDX short-scan acquisitions of a Shepp-Logan and a thorax phantom containing a high contrast s
Autor:
Michael A. Speidel, Michael T. Tomkowiak, B McCabe, Tobias Funk, Jordan M. Slagowski, David Dunkerley
Publikováno v:
SPIE Proceedings.
Scanning-Beam Digital X-ray (SBDX) is a technology for low-dose fluoroscopy that employs inverse geometry x-ray beam scanning. To assist with rapid modeling of inverse geometry x-ray systems, we have developed a Monte Carlo (MC) simulation tool based
Autor:
Michael T. Tomkowiak, Michael A. Speidel, Amish N. Raval, Tobias Funk, Paul Anthony Kahn, Jordan M. Slagowski, Jamie Ku, David Dunkerley
Publikováno v:
SPIE Proceedings.
Scanning-beam digital x-ray (SBDX) is an inverse geometry fluoroscopy system for low dose cardiac imaging. The use of a narrow scanned x-ray beam in SBDX reduces detected x-ray scatter and improves dose efficiency, however the tight beam collimation
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 9033
Proper sizing of interventional devices to match coronary vessel dimensions improves procedural efficiency and therapeutic outcomes. We have developed a novel method using inverse geometry x-ray fluoroscopy to automatically determine vessel dimension
Publikováno v:
Medical Imaging: Image Processing
Scanning Beam Digital X-ray (SBDX) is a low-dose inverse geometry fluoroscopic system for cardiac interventional procedures. The system performs x-ray tomosynthesis at multiple planes in each frame period and combines the tomosynthetic images into a
Autor:
Andrew J. Klein, Michael A. Speidel, Nehal Shah, Michael S. VanLysel, Amish N. Raval, Karl K. Vigen, Timothy A. Hacker, Michael T. Tomkowiak
Publikováno v:
Catheterization and cardiovascular interventions : official journal of the Society for Cardiac AngiographyInterventions. 80(7)
To demonstrate the feasibility of magnetic resonance imaging (MRI) to X-ray fluoroscopy (XRF) image fusion to guide peripheral artery chronic total occlusion (CTO) recanalization.Endovascular peripheral artery CTO revascularization is minimally invas