Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Rowland Frederick Saunders"'
Autor:
Rowland Frederick Saunders, Grant M. Stevens, Norbert J. Pelc, John A. Rowlands, Zhifei Wen, Rebecca Fahrig, G. DeCrescenzo, Arundhuti Ganguly
Publikováno v:
Medical Physics. 32:1775-1784
Minimally invasive procedures are increasing in variety and frequency, facilitated by advances in imaging technology. Our hybrid imaging system (GE Apollo{sup TM} flat panel, custom Brand x-ray static anode x-ray tube, GE Lunar high-frequency power s
Autor:
Stephen T. Kee, Bruce L. Daniel, Norbert J. Pelc, Rowland Frederick Saunders, Kim Butts, Zhifei Wen, Daniel Y. Sze, Frode Laerum, Rebecca Fahrig
Publikováno v:
Academic Radiology. 8:1200-1207
Rationale and Objectives The purpose of this study was to provide in vivo demonstrations of the functionality of a truly hybrid interventional x-ray/magnetic resonance (MR) system. Materials and Methods A digital flat-panel x-ray system (1,024 2 arra
Publikováno v:
Medical Physics. 28:1472-1481
A test-bed system has been developed for imaging phantoms with tomosynthesis and volumetric computed tomography. This system incorporates an amorphous silicon flat panel detector on a movable gantry and a computer-controlled rotational positioning st
Autor:
Zhifei Wen, Bruce L. Daniel, John Stanton, Rowland Frederick Saunders, Kim Butts, Grant M. Stevens, John A. Rowlands, Norbert J. Pelc, David L. Ergun, Rebecca Fahrig
Publikováno v:
Journal of Magnetic Resonance Imaging. 13:294-300
A system enabling both x-ray fluoroscopy and MRI in a single exam, without requiring patient repositioning, would be a powerful tool for image-guided interventions. We studied the technical issues related to acquisition of x-ray images inside an open
Autor:
John M. Sabol, Xianfeng Ni, Timothy Deller, Renuka Uppaluri, Kadri Nizar Jabri, Gopal B. Avinash, Rowland Frederick Saunders
Publikováno v:
SPIE Proceedings.
Digital tomosynthesis (DTS) is emerging as an advanced imaging technique that enables volumetric slice imaging with a detector typically used for projection radiography. An understanding of the interactions between DTS acquisition parameters and char
Autor:
Scott Wiese, Kadri Nizar Jabri, John Seamans, Jonathan Markley, Rowland Frederick Saunders, Ray Liu, Nery Moreno, Robert C. Gilkeson, John M. Sabol
Publikováno v:
SPIE Proceedings.
The detection of coronary calcifications with CT is generally accepted as a useful method for predicting early onset of coronary artery disease. Film-screen X-ray and fluoroscopy have also been shown to have high predictive value for coronary disease
Publikováno v:
SPIE Proceedings.
A novel method to measure in-plane resolution (modulation transfer function, or MTF) and slice thickness (slice sensitivity profile, or SSP) of a digital radiographic tomosynthesis system is presented. With this method, one can measure these two impo
Publikováno v:
The Journal of the Acoustical Society of America. 101:3238
An ultrasound imaging system is provided with a vector compounder and a vector splicer for respectively compounding and splicing vector data from multiple firings along a scan line to improve image quality. The compounder consists of an accumulator w