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Resolution of Definition Axial Datasets

posted by Savvas Nicolaou, M.D. | Apr 1, 2008
Savvas Nicolaou, M.D.

The following question has been sent by Judy Oltmann, CTA Technologist, USA: My question may have appeared vaque before. My radiology group has had a consistent complaint concerning the mottle or graininess, both terms applied, to the axial datasets acquired during our coronary scans with the Definition scanner. We have applied … Read more

Resolution of Definition Axial Datasets

posted by Pal Suranyi, M.D., PhD | Mar 26, 2008
Pal Suranyi, M.D., PhD

The following question has been sent by Judy Oltmann, CTA Technologist, USA: My question may have appeared vaque before. My radiology group has had a consistent complaint concerning the mottle or graininess, both terms applied, to the axial datasets acquired during our coronary scans with the Definition scanner. We have applied … Read more

Resolution of Definition axial datasets

posted by Stephan Achenbach, M.D. | Mar 25, 2008
Stephan Achenbach, M.D.

The following question has been sent by Judy Oltmann, CTA Technologist, USA: Resolution of Definition Axial Datasets: My question may have appeared vaque before. My radiology group has had a consistent complaint concerning the mottle or graininess, both terms applied, to the axial datasets acquired during our coronary scans with the Definition … Read more

Cardiac: Coronary CT angiography

posted by Stephan Achenbach, M.D. | Jan 7, 2008

With their small dimensions and fast motion, the coronary vessels are not easy to interpret by CT and impeccable image quality is a prerequisite to reliably detect or rule out stenoses. Owing to its high temporal and spatial resolution Dual Source CT should allow for reliable assessment of the coronary … Read more

RSNA-Session: Coronary CTA with dual-source CT versus 64-Slice CT: impact on radiation dose, diagnostic quality and use of beta-blockers

posted by U. Joseph Schoepf, M.D. | Dec 12, 2007
U. Joseph Schoepf, M.D.

Purpose Dual-Source CT (DSCT) has substantially improved temporal resolution over previous scanner generations, which holds promise to increase the accuracy of coronary CT angiography (cCTA). We aimed to assess the impact of DSCT on radiation dose, diagnostic quality and use of rate control at cCTA compared with 64-slice CT. Method and materials The … Read more