4 results match your criteria: "University of Washington Radiology[Affiliation]"
Impact of Using Uniform Attenuation Coefficients for Heterogeneously Dense Breasts in a Dedicated Breast PET/X-ray Scanner.
IEEE Trans Radiat Plasma Med Sci
September 2020
Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, NC 27705.
We investigated PET image quantification when using a uniform attenuation coefficient () for attenuation correction (AC) of anthropomorphic density phantoms derived from high-resolution breast CT scans. A breast PET system was modeled with perfect data corrections except for AC. Using uniform for AC resulted in quantitative errors roughly proportional to the difference between used in AC ( ) and local , yielding approximately ± 5% bias, corresponding to the variation of for 511 keV photons in breast tissue.
View Article and Find Full Text PDFRetrospective analysis of 1118 outpatient chest CT scans to determine factors associated with excess scan length.
Clin Imaging
June 2020
University of Washington Radiology, Seattle, WA, United States of America.
Rationale Objectives: Excess z-axis scanning continues as an unnecessary source of radiation. This study seeks to determine patient, technologist and CT factors that affect excess scan length for chest CT.
Materials And Methods: Retrospective evaluation of 1118 consecutive noncontrast chest CT scans, over twelve consecutive months, was performed for evaluation of scan length above and below the lung parenchyma.
Update on operative treatment of scapholunate (SL) instability for radiologists: part 1-SL ligament repair, dorsal capsulodesis and SL ligament reconstruction.
Skeletal Radiol
December 2017
University of Washington Radiology, 4245 Roosevelt Way NE Box 354755, Seattle, WA, 98105, USA.
Article Synopsis
- Scapholunate instability is the leading type of carpal instability and its assessment relies heavily on imaging techniques, particularly X-rays.
- The article aims to examine the pre-operative evaluation stages, various surgical repair and reconstruction methods for the scapholunate ligament, and the expected post-surgery imaging results.
- It also discusses the potential complications that may arise from these surgical interventions.
Update on the operative treatment of scapholunate instability for radiologists. II. Salvage procedures, total wrist arthrodesis, and total wrist arthroplasty.
Skeletal Radiol
August 2017
University of Washington Radiology, 4245 Roosevelt Way NE, Box 354755, Seattle, WA, 98105, USA.
Article Synopsis
- Scapholunate instability is the most prevalent type of carpal instability and requires imaging for proper assessment and management.
- In advanced cases, termed scapholunate advanced collapse, significant degenerative changes in the wrist occur.
- The article discusses various surgical treatments for different stages of this condition, focusing on postoperative imaging results and potential complications related to each surgical approach.