A cardiac phantom study on quantitative correction of coronary calcium score on multi-detector, dual source, and electron beam tomography for velocity, calcification density, and acquisition time

2009 ◽  
Author(s):  
Marcel J. W. Greuter ◽  
Jaap M. Groen ◽  
Lieuwe J. Nicolai ◽  
Hildebrand Dijkstra ◽  
Matthijs Oudkerk
Keyword(s):  
Electron Beam ◽  
Calcium Score ◽  
Phantom Study ◽  
Coronary Calcium ◽  
Coronary Calcium Score ◽  
Acquisition Time ◽  
Electron Beam Tomography ◽  
Cardiac Phantom ◽  
Dual Source

scholarly journals Diabetes and progression of coronary calcium score using electron beam tomography

2003 ◽  
Vol 41 (6) ◽  
pp. 458
Author(s):  
Matthew J. Budoff ◽  
Rajnish Mehrotra ◽  
Raffi Merjanian ◽  
Junichiro Takasu ◽  
Songshou Mao
Keyword(s):  
Electron Beam ◽  
Calcium Score ◽  
Coronary Calcium ◽  
Coronary Calcium Score ◽  
Electron Beam Tomography

Relation of Coronary Calcium Score by Electron Beam Computed Tomography to Arteriographic Findings in Asymptomatic and Symptomatic Adults

1997 ◽  
Vol 79 (2) ◽  
pp. 128-133 ◽  
Author(s):  
Alan D. Guerci ◽  
Louise A. Spadaro ◽  
Jeffrey J. Popma ◽  
Kenneth J. Goodman ◽  
Bruce H. Brundage ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Electron Beam ◽  
Calcium Score ◽  
Coronary Calcium ◽  
Coronary Calcium Score ◽  
Electron Beam Computed Tomography

Coronary Artery Plaque Burden and Perioperative Cardiac Risk

2001 ◽  
Vol 95 (5) ◽  
pp. 1133-1140 ◽  
Author(s):  
Elisabeth Mahla ◽  
Martin N. Vicenzi ◽  
Brigitte Schröttner ◽  
Robert Maier ◽  
Kurt Tiesenhausen ◽  
...  
Keyword(s):  
Electron Beam ◽  
Cardiac Troponin ◽  
Cell Injury ◽  
Troponin T ◽  
Calcium Score ◽  
Coronary Calcium ◽  
Coronary Calcium Score ◽  
Plaque Burden ◽  
Cardiac Troponin T ◽  
Electron Beam Computed Tomography

Background Electron-beam computed tomography-derived coronary calcium score correlates with the morphologic severity of coronary artery disease, reflecting both global atherosclerotic plaque formation and coronary artery luminal narrowing. The current study examines the impact of coronary atherosclerotic plaque burden, measured by coronary calcium score, on the potential for perioperative myocardial cell injury, as assessed by cardiac troponin T elevations in patients undergoing elective vascular surgery. The authors further investigated whether perioperative myocardial cell injury in those patients adversely affects noninvasive measures of left ventricular systolic function, such as ejection fraction and wall motion score. Methods Fifty-one consecutive patients scheduled for vascular surgery were enrolled in this prospective study. In addition to standard preoperative evaluation, including patient history and physical examination, electron-beam computed tomography scan, 12-lead electrocardiography, and transthoracic echocardiography were performed on the day before surgery. Subsequent evaluations on postoperative days 2 and 7 included transthoracic echocardiography and 12-lead electrocardiography. Cardiac troponin T determinations were performed on the day before surgery, immediately preoperatively, and on postoperative days 1, 2, 3, and 7. Results The median coronary calcium score of the 51 patients was 997.0 (25th percentile, 202.5; 75th percentile, 1,949.5). Cardiac troponin T elevations exclusively occurred in patients with a coronary calcium score greater than 1,000. The six patients (12%) with perioperative cardiac troponin T elevations had a 2.5-fold higher coronary calcium score than those without cardiac troponin T elevation (P = 0.021). In these patients, the ejection fraction decreased from 61 +/- 10% to 52 +/- 13% (mean +/- SD) on postoperative day 2 and was 54 +/- 16% on postoperative day 7 (P = 0.022). Conclusion A high electron-beam computed tomography coronary calcium score, reflecting substantial coronary plaque burden, carries an increased risk for myocardial cell injury after vascular surgery. In these patients, myocardial damage may result in deterioration of global systolic left ventricular function.

Overlapping Cross-Sections Significantly Improve the Reproducibility of Coronary Calcium Measurements by Electron Beam Tomography: A Phantom Study

2001 ◽  
Vol 25 (4) ◽  
pp. 569-573 ◽  
Author(s):  
Stephan Achenbach ◽  
Frank Meissner ◽  
Dieter Ropers ◽  
Karsten Pohle ◽  
Magda Kusus ◽  
...  
Keyword(s):  
Electron Beam ◽  
Cross Sections ◽  
Phantom Study ◽  
Coronary Calcium ◽  
Electron Beam Tomography
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