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CT detection of myocardial blood volume deficits: Dual-energy CT compared with single-energy CT spectra

posted by U. Joseph Schoepf, M.D. | Feb 6, 2012
U. Joseph Schoepf, M.D.

DECT iodine maps show superior performance for the detection of fixed and mixed perfusion deficits compared with SCT spectra. Read more

Dual energy CTA of the supraaortic arteries: technical improvements with a novel dual source CT system

posted by Michael M. Lell, M.D. | Jan 30, 2012
Michael M. Lell, M.D.

We sought to describe the performance of DE-CTA of the supraaortic vessels with a novel dual source CT system with special emphasis on image quality and post-processing related artifacts. Read more

Case: Coronary and aortic CTA at a 7-week old boy: DLP5

posted by Ronald Booij | Jan 23, 2012
Ronald Booij
  • case_protocol_7wk-old-boy-coronary-aortic
  • Fig. 1 VRT of the VSD & Aortic arch
  • Fig. 2 VRT of the VSD & Aortic arch
  • Fig. 3 MIP reconstruction showing the presence of the coronaries

The scan was performed with bolustracking technique. The reason was that the i.v. cannula was placed on the forehead, allowing the use of a manual delay is not recommended. Read more

Radiation Dose and Vessel Attenuation at High-Speed CTA of the Torso: Intra-Individual and Inter-Individual Comparison with Conventional CTA

posted by U. Joseph Schoepf, M.D. | Jan 16, 2012
U. Joseph Schoepf, M.D.

High-speed CTA is a promising technique for significantly reducing CTA-related radiation dose in non-obese patients. Read more

Case: Reliable Detection and Diagnoses of Gout Using Dual Energy Acquisition Technique

posted by Andreas Artmann, M.D., D.V.M. | Jan 9, 2012
Andreas Artmann, M.D., D.V.M.
  • artmann_dsct_case_protocol
  • artmann_dsct_case_Gout-Using-dual-Energy-Acquisition-Technique-1
  • artmann_dsct_case_Gout-Using-dual-Energy-Acquisition-Technique-2
  • Fig. 3 DECT allows specific and quantitative visualization of urate deposits.

Usually, rheumatologic diseases are of many kinds, numerous and varied, making a quick diagnosis sometimes difficult. Siemens Computed Tomography, using Dual Energy acquisition techniques, allows the visualization of uric acid deposits. Read more

Radiation exposure and image quality in staged low-dose protocols for coronary dual-source CT angiography: a randomized comparison

posted by Michael M. Lell, M.D. | Jan 3, 2012
Michael M. Lell, M.D.

To evaluate staged low-dose approaches for coronary CT angiography (CTA) in which a standard sequence was added if the low-dose sequence did not allow reliable rule-out of coronary stenosis. Read more

Case: Familial Aortic Aneurysm

posted by Ronald Booij | Dec 27, 2011
Ronald Booij
  • case_protocol_Familial Aortic Aneurysm
  • Fig. 1 VRT of total aorta
  • Fig. 2 VRT of total aorta
  • Fig. 3 VRT of total aorta

CT examination in aorta totalis protocol. Dose was around 1.1mSv and also because of the high pitch mode, contrast media material was saved. Read more

Coronary CTA with a consistent dose below 1 mSv using prospectively electrocardiogram-triggered high-pitch spiral acquisition

posted by Michael M. Lell, M.D. | Dec 20, 2011
Michael M. Lell, M.D.

We evaluated the feasibility and image quality of a new scan mode for coronary computed tomography angiography (CTA) with an effective dose of less than 1 mSv. Read more

Case: Thorax of 7-year old with Flash

posted by Ronald Booij | Dec 12, 2011
Ronald Booij
  • case_protocol_Thorax-of-7-year-old-with-Flash
  • Fig. 1 VRT shows no motion and nice visualization of lung and vessels
  • Fig. 2 Fused MPR and VRT shows no motion and nice visualization of lung and vessels
  • Fig. 3 Fused MPR and VRT shows no motion and nice visualization of lung and vessels

A very challenging case, which can be made easy by using the flash technique. Read more

Case: Low dose Choan Atresia in 3-day-old girl

posted by Ronald Booij | Nov 28, 2011
Ronald Booij
  • Low dose Choan Atresia in 3-day-old girl
  • Fig. 1 VRT shows agenesis of right nostril
  • Fig. 2 VRT image fused with MPR
  • Fig. 3 Aplasia of the entire right nasal passage without etmoid cells and conchae at all levels

Scan was performed without anaesthesia in a vacuum mattress with low pitch and rotation time of 1 second. Read more