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High-Speed, Low Radiation-Dose CT Angiography of the Chest: Performance of an Individualized, Patient-Based Contrast Media Injection Algorithm

posted by U. Joseph Schoepf, M.D. | Feb 16, 2011
U. Joseph Schoepf, M.D.

At sub-second, low radiation dose CTA of the chest, use of individualized, patient-based contrast media delivery protocols results in reliable, diagnostic contrast enhancement of all target vessels. Read more

High-pitch DSCT angiography of the aortic valve-aortic root complex without ECG-synchronization

posted by Sebastian Leschka, M.D. | Jan 26, 2011
Sebastian Leschka, M.D.

To compare image quality and radiation dose of high-pitch CTA of the aortic valve-aortic root complex with and without prospective ECG-gating compared to a retrospectively ECG-gated standard-pitch acquisition. Read more

The value of dual-energy bone removal in maximum intensity projections of lower extremity CT angiography

posted by Thorsten R. C. Johnson, M.D. | Jul 27, 2010
Thorsten R. C. Johnson, M.D.

The objective of this study was to evaluate the feasibility and efficiency of this technique by comparing maximum intensity projections (MIP) created with different bone removal techniques. Read more

News: CT users consider a dose of < 1 mSV to be viable for CTA of coronary artery disease

posted by DSCT.com editors | Jun 18, 2010

DSCT.com has asked the website´s visitors at what dose level they would consider a CTA to be a viable option for early detection of coronary artery disease. See the results. Read more

Noninvasive Coronary Angiography Using Dual-Source Computed Tomography in Patients With Atrial Fibrillation

posted by Thorsten R. C. Johnson, M.D. | Oct 19, 2009
Thorsten R. C. Johnson, M.D.

The purpose of this study was to assess the image quality of coronary CT angiograms with coronary angiography, using a dual-source CT scanner (DSCT), comparing systolic and diastolic reconstruction techniques. Additionally, we sought to evaluate the diagnostic accuracy of DSCT with coronary angiography as the standard of reference. Read more

Prospectively ECG-triggered high-pitch spiral acquisition for coronary CT angiography using dual source CT: technique and initial experience

posted by Stephan Achenbach, M.D. | Oct 7, 2009
Stephan Achenbach, M.D.

Objective We evaluated radiation exposure and image quality of a new coronary CT angiography protocol, high-pitch spiral acquisition, using dual source CT (DSCT). Materials and methods Coronary CTA was performed in 25 consecutive patients with a stable heart rate of 60 bpm or less after premedication, using 2 x 128 0.6-mm sections, 38.4-mm … Read more

Automatic selection of optimal systolic and diastolic reconstruction windows for dual-source CT coronary angiography

posted by Harald Seifarth, M.D. | Apr 19, 2009
Harald Seifarth, M.D.

Abstract The aim of this study was to assess the performance of a motion-map algorithm that automatically determines optimal reconstruction windows for dual-source coronary CT angiography. In datasets from 50 consecutive patients, optimal systolic and diastolic reconstruction windows were determined using the motion-map algorithm. For manual determination of the optimal … Read more