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Quantitative Analysis of Myocardial Iodine Concentration during Stress and Rest Based on Dual-Energy CT – Comparison with Cardiac Perfusion MRI

posted by U. Joseph Schoepf, M.D. | Jan 27, 2011
U. Joseph Schoepf, M.D.

Using iodine concentration as a quantitative surrogate for perfusion could enhance the potential role of DECT as a stand-alone modality for integrative imaging of ischemic heart disease. Read more

Adenosine-Stress Dual Energy CT Myocardial Perfusion Imaging with Second Generation DSCT: Correlation with Single-Photon Emission CT and Cardiac MRI

posted by U. Joseph Schoepf, M.D. | Jan 20, 2011
U. Joseph Schoepf, M.D.

Compared with SPECT, DECT showed more accurate detection rates for reversible and fixed perfusion defects seen on cMRI, and revealed higher agreement for identifying the type of perfusion defect. Read more

Coronary artery disease: Which degree of coronary artery stenosis is indicative of ischemia?

posted by Hatem Alkadhi, M.D. | Jan 18, 2011
Hatem Alkadhi, M.D.

To prospectively determine the best cut-off value of stenosis degree for low-dose CT coronary angiography to predict the hemodynamic significance of coronary artery stenoses compared to catheter angiography using a cardiac MR based approach as standard of reference. Read more

Prospective and retrospective ECG-gating for CT coronary angiography perform similarly accurate at low heart rates

posted by Hatem Alkadhi, M.D. | Nov 22, 2010
Hatem Alkadhi, M.D.

Prospectively ECG-gated CTCA yields similar image quality, performs as accurately as retrospectively ECG-gated CTCA in patients having heart rates Read more

High-pitch DSCT angiography of the thoracic and abdominal aorta: is simultaneous coronary artery assessment possible?

posted by Hatem Alkadhi, M.D. | Sep 28, 2010
Hatem Alkadhi, M.D.

The purpose of this study was to prospectively evaluate the average heart rate and heart rate variability required for diagnostic imaging of the coronary arteries with high-pitch DSCT angiography of the thoracic and thoracoabdominal aorta. Read more

Diagnostic accuracy and image quality of cardiac DSCT in patients with arrhythmia

posted by Martin Heuschmid, M.D. | Sep 24, 2010
Martin Heuschmid, M.D.

However, in patients with heart rate irregularities, MDCT was found to have limitations. Thus, the aim of the present study was to evaluate the diagnostic accuracy of a new DSCT scanner generation with 83 ms temporal resolution in patients without stable sinus rhythm. Read more

Systolic acquisition of coronary DSCT angiography: feasibility in an unselected patient population

posted by Fabian Bamberg M.D., M.P.H. | Sep 20, 2010
Fabian Bamberg M.D., M.P.H.

To determine the practicability and potential dose saving of an imaging algorithm incorporating a pulsing scheme applying systolic data acquisition at heart rates > 75 bpm. Read more