14 research outputs found
The Vehicle, Fall 1991
Table of Contents
ImprovisationAmy Schmitzerpage 5-6
Courthouse ClockAnthony Smithpage 7
The PaintingAngie Gallionpage 8
Empty MoonVictoria Bennettpage 9
ClarissaLaura Durnellpage 10
untitledNancy Jamespage 11
Imprisoned (photo)Dan Kooncepage 12
I Hit Mother Nature with My Ten SpeedJohn Haywardpage 13
The Realm of MotherJennifer Moropage 14-16
untitled (drawing)Mark Randallpage 20
With Purity and PerversionBret Evangelistapage 21
O\u27Hare AirportAnthony Smithpage 22
morgen, my desolationtravis mcdadepage 22-23
Ever GreenChris Rosenstockpage 24
JigsawThomas D. Schnarrepage 25-26
Notes on the Egyptian ExhibitVictoria Bennettpage 27
Moving OnChristina Roypage 28
weep my inquisitive hearttravis mcdadepage 29-30
Dance (drawing)Tim Cullotonpage 31
Roots of the OakThomas D. Schnarrepage 32-33
god\u27s suicideLiam Burkepage 34
The Poa TreeSheila Taylorpage 35https://thekeep.eiu.edu/vehicle/1056/thumbnail.jp
Accuracy of dual-energy computed tomography for the measurement of iodine concentration using cardiac CT protocols: validation in a phantom model
To assess the accuracy of dual-energy CT (DECT) for the quantification of iodine concentrations in a thoracic phantom across various cardiac DECT protocols and simulated patient sizes. Experiments were performed on first- and second-generation dual-source CT (DSCT) systems in DECT mode using various cardiac DECT protocols. An anthropomorphic thoracic phantom was equipped with tubular inserts containing known iodine concentrations (0-20 mg/mL) in the cardiac chamber and up to two fat-equivalent rings to simulate different patient sizes. DECT-derived iodine concentrations were measured using dedicated software and compared to true concentrations. General linear regression models were used to identify predictors of measurement accuracy Correlation between measured and true iodine concentrations (n = 72) across CT systems and protocols was excellent (R = 0.994-0.997, P <0.0001). Mean measurement errors were 3.0 +/- 7.0 % and -2.9 +/- 3.8 % for first- and second-generation DSCT, respectively. This error increased with simulated patient size. The second-generation DSCT showed the most stable measurements across a wide range of iodine concentrations and simulated patient sizes. Overall, DECT provides accurate measurements of iodine concentrations across cardiac CT protocols, strengthening the case for DECT-derived blood volume estimates as a surrogate of myocardial blood supply. aEuro cent Dual-energy CT provides new opportunities for quantitative assessment in cardiac imaging. aEuro cent DECT can quantify myocardial iodine as a surrogate for myocardial perfusion. aEuro cent DECT measurements of iodine concentrations are overall very accurate. aEuro cent The accuracy of such measurements decreases as patient size increases
Management Speaks, Investors Listen: Are Investors Too Focused on Managerial Disclosures?
The Vehicle, Fall 1991
Table of Contents
ImprovisationAmy Schmitzerpage 5-6
Courthouse ClockAnthony Smithpage 7
The PaintingAngie Gallionpage 8
Empty MoonVictoria Bennettpage 9
ClarissaLaura Durnellpage 10
untitledNancy Jamespage 11
Imprisoned (photo)Dan Kooncepage 12
I Hit Mother Nature with My Ten SpeedJohn Haywardpage 13
The Realm of MotherJennifer Moropage 14-16
untitled (drawing)Mark Randallpage 20
With Purity and PerversionBret Evangelistapage 21
O\u27Hare AirportAnthony Smithpage 22
morgen, my desolationtravis mcdadepage 22-23
Ever GreenChris Rosenstockpage 24
JigsawThomas D. Schnarrepage 25-26
Notes on the Egyptian ExhibitVictoria Bennettpage 27
Moving OnChristina Roypage 28
weep my inquisitive hearttravis mcdadepage 29-30
Dance (drawing)Tim Cullotonpage 31
Roots of the OakThomas D. Schnarrepage 32-33
god\u27s suicideLiam Burkepage 34
The Poa TreeSheila Taylorpage 35https://thekeep.eiu.edu/vehicle/1056/thumbnail.jp