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Diagnostic image quality of a comprehensive high-pitch dual-spiral cardiothoracic CT protocol in patients with undifferentiated acute chest pain

posted by Fabian Bamberg M.D., M.P.H. | Jul 18, 2011
Fabian Bamberg M.D., M.P.H.

To evaluate diagnostic image quality of high-pitch dual source comprehensive cardiothoracic CT protocol in patients presenting with acute undifferentiated chest pain. Read more

Case: Ruling out Coronary Artery disease with 0.69 mSv

posted by Ralf Bauer, M.D. | Mar 8, 2011
Ralf Bauer, M.D.
  • Fig 1: Volume Rendered display of  the major coronary arteries underlined with MPR
  • Fig 2: Caudo-Cranial view of the distal part of the RCA and PDA.
  • Fig 3: Curved planar reformatted display of the RCA.
  • Fig 4: Curved planar reformatted display of the LAD.

Coronary CTA using 100 kV tube potential and the FLASH spiral acquisition mode allowed ruling out coronary artery disease in this normal-sized adult patient with a DLP of 49 in only 0.29 s scan time without the use of beta blockers. Read more

Case: Dual Energy Coronary CTA for Evaluation of Chest Pain after RCA Revascularization

posted by Ralf Bauer, M.D. | Feb 2, 2011
Ralf Bauer, M.D.
  • Fig. 1 Prior to recanalization: Cardiac catheterization showed a prominent RV branch and in-stent occlusion of the mid and distal RCA.
  • Fig. 2 Curved multiplanar reformates showed in-stent thrombosis with occlusion beginning in the proximal RCA. In the RV branch, which was clearly visible on pre-interventional cath images, no contrast material filling could be delineated.
  • Fig. 3 Dual Energy iodine mapping showed a large area with decreased perfusion in the arterial phase in the inferoseptal wall extending from the base to the apex of the heart.
  • Fig. 4 Late enhancement was present in the inferoseptal wall corresponding to the perfusion defect in arterial phase.

In this case, Dual Energy coronary CTA was used to image a complication of interventional recanalization, i.e. acute in-stent thrombosis, while the initial clinical diagnosis of acute aortic dissection could reliably be ruled out. Read more

Saving Dose in Triple-Rule-Out CT Examination Using a High-Pitch Dual Spiral Technique

posted by Thorsten R. C. Johnson, M.D. | Oct 8, 2010
Thorsten R. C. Johnson, M.D.

The high-pitch dual spiral technique requires only about onefifth of the dose of conventional ECG gated triple-rule-out protocols, thus matching that of a standard nongated chest scan. Read more

Cardiac CT – which scanner can be recommended

posted by Anno Graser, M. D. | Mar 18, 2009
Anno Graser, M. D.

Vesela Stoynova, Sofia, Bulgaria has sent the following question: Cardiac CT: Hi EXPERTS, We do a lot of cardio CT with 16 slice GE. We are on the way to by a new CT. I have read all advertisement about DSCT. I would like to hear your oppinion on  ustabile heart rate, extrasystole … Read more

Extended chest pain protocol (full chest)

posted by Thorsten R. C. Johnson, M.D. | Oct 7, 2008
Thorsten R. C. Johnson, M.D.

Please, click on the title to see the protocol. Read more

Quadruple, patent coronary artery bypass grafts

posted by Pal Suranyi, M.D., PhD | Jul 4, 2008
Pal Suranyi, M.D., PhD
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Case history Five years following quadruple CABG surgery, this 64-year-old patient started experiencing atypical chest pain. Question Are any of the bypass grafts or anastomoses stenotic or occluded? Is there an extra-cardiac cause behind the patient‘s symptoms? Diagnosis/Differential diagnosis Acute graft thrombosis, myocardial infarction, myocardial ischemia due to graft stenosis, aortic dissection, pulmonary embolism, pericarditis, … Read more