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Characterization of coronary atherosclerosis by dual-source computed tomography and HU-based color mapping: a pilot study.

posted by Anja Reimann, MD | Sep 22, 2009
Anja Reimann, MD

To assess HU-based color mapping for characterization of coronary plaque, using intravascular ultrasound virtual histology (IVUS-VH) as a standard of reference. Dual-source computed tomography and IVUS-VH were prospectively performed in 13 patients. In five lesions, HU thresholds of the color-coding software were calibrated to IVUS-VH. In a 15-lesion verification cohort, … Read more

ACCURATUM: improved calcium volume scoring using a mesh-based algorithm—a phantom study

posted by Hatem Alkadhi, M.D. | Apr 7, 2009
Hatem Alkadhi, M.D.

To overcome the limitations of the classical volume scoring method for quantifying coronary calcifications, including accuracy, variability between examinations, and dependency on plaque density and acquisition parameters, a mesh-based volume measurement method has been developed. It was evaluated and compared with the classical volume scoring method for accuracy, i.e., the normalized … Read more

Dual-source computed tomography: advances of improved temporal resolution in coronary plaque imaging

posted by Martin Heuschmid, M.D. | Sep 2, 2008
Martin Heuschmid, M.D.

Abstract  OBJECTIVES: The aim of this study was to quantify image quality gains of a moving coronary plaque phantom using dual-source computed tomography (DSCT) providing 83 milliseconds temporal resolution in direct comparison to 64 slice single-source multidetector CT (MDCT) with a temporal resolution of 165 milliseconds. MATERIALS AND METHODS: Three cardiac vessel … Read more

Dual Source CT Dual Energy Head and Neck CTA

posted by Anders Persson, M.D., PhD | Apr 4, 2008
Anders Persson, M.D., PhD

Case history A 72-year-old female patient arrives to CMIV at the University Hospital in Linköping, Sweden. She has been having two episodes of amarosis fugax two times last month and a severe holocephal headache for the last six hours. A CTA of the head and neck were performed at CMIV. Diagnosis/ Differential … Read more

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Calcification of the carotid artery

posted by Martin Heuschmid, M.D. | Jan 28, 2008
Martin Heuschmid, M.D.

Case history A 63-year-old hypertensive patient is presenting with transient amaurosis fugax and aphasia for 8 hours. MRI angiography was not possible because a cardiac pacemaker is present. Questions Abnormal anatomy of the carotid vessels? Severe carotid artery stenosis? Plaques of the carotid arteries? Diagnosis / Differential diagnosis Arteriosclerosis of the internal carotid artery Occlusion of carotid artery … Read more

Calcification of the renal artery

posted by Martin Heuschmid, M.D. | Dec 16, 2007
Martin Heuschmid, M.D.

Case history 62-year-old female presenting with hypertension. She had undergone left nephrectomy 12 years prior. Since she is severely claustrophobic, an MRI can not be performed. Read more

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Protocol Vascular Plaque Removal and Detection

Martin Heuschmid, M.D.

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