scholarly journals Dual-energy imaging of bone marrow edema on a dedicated multi-source cone-beam CT system for the extremities

2015 ◽  
Author(s):  
W. Zbijewski ◽  
A. Sisniega ◽  
J. W. Stayman ◽  
G. Thawait ◽  
N. Packard ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Cone Beam Ct ◽  
Dual Energy ◽  
Cone Beam ◽  
Dual Energy Imaging ◽  
Ct System ◽  
Marrow Edema

Incremental diagnostic value of color-coded virtual non-calcium dual-energy CT for the assessment of traumatic bone marrow edema of the scaphoid

2021 ◽  
Author(s):  
Vitali Koch ◽  
Felix Christoph Müller ◽  
Kasper Gosvig ◽  
Moritz H. Albrecht ◽  
Ibrahim Yel ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Diagnostic Value ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Marrow Edema

scholarly journals A Method to Improve Electron Density Measurement of Cone-Beam CT Using Dual Energy Technique

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Kuo Men ◽  
Jian-Rong Dai ◽  
Ming-Hui Li ◽  
Xin-Yuan Chen ◽  
Ke Zhang ◽  
...  
Keyword(s):  
Electron Density ◽  
Cone Beam Ct ◽  
Density Measurement ◽  
Dual Energy ◽  
Cone Beam ◽  
Imaging Method ◽  
Basis Material ◽  
X Ray ◽  
Dual Energy Imaging ◽  
Set Up

Purpose. To develop a dual energy imaging method to improve the accuracy of electron density measurement with a cone-beam CT (CBCT) device.Materials and Methods. The imaging system is the XVI CBCT system on Elekta Synergy linac. Projection data were acquired with the high and low energy X-ray, respectively, to set up a basis material decomposition model. Virtual phantom simulation and phantoms experiments were carried out for quantitative evaluation of the method. Phantoms were also scanned twice with the high and low energy X-ray, respectively. The data were decomposed into projections of the two basis material coefficients according to the model set up earlier. The two sets of decomposed projections were used to reconstruct CBCT images of the basis material coefficients. Then, the images of electron densities were calculated with these CBCT images.Results. The difference between the calculated and theoretical values was within 2% and the correlation coefficient of them was about 1.0. The dual energy imaging method obtained more accurate electron density values and reduced the beam hardening artifacts obviously.Conclusion. A novel dual energy CBCT imaging method to calculate the electron densities was developed. It can acquire more accurate values and provide a platform potentially for dose calculation.

scholarly journals Bone Marrow Edema in Vertebral Compression Fractures: Detection with Dual-Energy CT

Radiology ◽  
2013 ◽  
Vol 269 (2) ◽  
pp. 525-533 ◽  
Author(s):  
Chien-Kuo Wang ◽  
Jen-Ming Tsai ◽  
Ming-Tsung Chuang ◽  
Min-Tsung Wang ◽  
Kuo-Yuan Huang ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Marrow Edema

Clinical Utility of Dual-Energy CT Analysis of Bone Marrow Edema in Acute Wrist Fractures

2018 ◽  
Vol 210 (4) ◽  
pp. 842-847 ◽  
Author(s):  
Ismail T. Ali ◽  
William D. Wong ◽  
Teresa Liang ◽  
Faisal Khosa ◽  
Memoona Mian ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Clinical Utility ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Wrist Fractures ◽  
Ct Analysis ◽  
Marrow Edema

Bone marrow edema in sacroiliitis: detection with dual-energy CT

2020 ◽  
Vol 30 (6) ◽  
pp. 3393-3400 ◽  
Author(s):  
Min Chen ◽  
Nele Herregods ◽  
Jacob L. Jaremko ◽  
Philippe Carron ◽  
Dirk Elewaut ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Marrow Edema

Identification of bone marrow edema of the knee: diagnostic accuracy of dual-energy CT in comparison with MRI

2020 ◽  
Author(s):  
Giovanni Foti ◽  
William Mantovani ◽  
Niccolò Faccioli ◽  
Giacomo Crivellari ◽  
Luigi Romano ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Diagnostic Accuracy ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Marrow Edema

scholarly journals Scaphoid fracture: Bone marrow edema detected with dual-energy CT virtual non-calcium images and confirmed with MRI

2017 ◽  
Vol 46 (12) ◽  
pp. 1753-1756 ◽  
Author(s):  
Nazeer M. Dareez ◽  
Kristine H. Dahlslett ◽  
Eirin Engesland ◽  
Elisabeth S. Lindland
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Scaphoid Fracture ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Fracture Bone ◽  
Marrow Edema

scholarly journals Diagnostic Accuracy of Dual-energy CT for Bone Marrow Edema in Patients with Acute Knee Injuries: A Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Xuelong Chen ◽  
Zhizhuo Li ◽  
Hui Fang ◽  
Xiangyang Yin ◽  
Chengxin Li ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bone Marrow ◽  
Knee Injury ◽  
Bone Marrow Edema ◽  
Meta Analysis ◽  
Knee Injuries ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Acute Knee ◽  
Marrow Edema

Abstract Background: The prevalence of knee injury is high and early diagnosis is significant to guide clinical treatment. MRI is recognized as the gold standard for detecting bone marrow edema (BME) in patients with acute knee injury, but limitations still exist. Dual-energy CT (DECT) is investigated as a promising alternative.Methods: We systematically retrieved studies from EMBASE, Scopus, PUBMED, and the Cochrane Library and collected gray literatures. According to PRISMA-DTA guidelines, a systematic review was performed from inception to July 31, 2021, assessing the diagnostic accuracy of DECT for detecting BME in at least 10 adult patients with acute knee injuries and with an MRI reference standard. Study details were independently extracted by two reviewers. Meta-analysis was performed using a bivariate mixed-effects regression model with subgroup analysis performed to evaluate for sources of variability. Results: Nine studies evaluating 290 patients between the ages of 23–53 with acute knee injuries undergoing DECT and MRI were included in analysis. Summary sensitivity, specificity, and AUC values for BME were 85% (95% confidence interval (CI) 77–90%), 96% (95% CI 93–97%), and 0.97 (95% CI 0.95–0.98), respectively. There were no statistically significant differences in specificity and sensitivity amongst comparative subgroups to account for presumed variability amongst studies.Conclusion: DECT is accurate for detecting BME in patients with acute knee injuries and can be used as an alternative to MRI, particularly when MRI is contraindicated or unavailable.

SU-F-J-212: Enabling Conventional Cone Beam CT with the Capability of Dual Energy Imaging Using a Simple Add-On Beam Modifier

2016 ◽  
Vol 43 (6Part12) ◽  
pp. 3457-3457
Author(s):  
R Vinke ◽  
S Takao ◽  
K Umegaki ◽  
H Shirato ◽  
H Peng ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Dual Energy ◽  
Cone Beam ◽  
Dual Energy Imaging
Sign in / Sign up

Export Citation Format

Share Document