Removal of bone in CT angiography of the cervical arteries by piecewise matched mask bone elimination

In maximum intensity projection (MIP) images of CT angiography (CTA) scans, the arteries are often obscured by bone. A bone removal method is presented that uses an additional, nonenhanced scan to create a mask of the bone by thresholding and dilation. After registration of the CTA scan and the addi...

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Veröffentlicht in:	Medical physics (Lancaster) 2004-10, Vol.31 (10), p.2924-2933
Hauptverfasser:	van Straten, Marcel, Venema, Henk W., Streekstra, Geert J., Majoie, Charles B. L. M., den Heeten, Gerard J., Grimbergen, Cornelis A.
Format:	Artikel
Sprache:	eng
Schlagworte:	ALGORITHMS Ancillary equipment Aneurysm, Dissecting - diagnostic imaging Angiography, Digital Subtraction - methods ARTERIES Artificial Intelligence BIOMEDICAL RADIOGRAPHY blood vessels bone Carotid Artery Diseases - diagnostic imaging Catchment areas Cerebral Angiography - methods Cervical Vertebrae - diagnostic imaging Cluster Analysis Computed radiography Computed tomography computerised tomography DOSIMETRY Humans Image analysis image enhancement IMAGE PROCESSING image registration Information Storage and Retrieval - methods Medical image noise medical image processing Medical image quality Medical image segmentation Medical imaging Pattern Recognition, Automated - methods PHANTOMS Phantoms, Imaging RADIATION DOSES Radiographic Image Enhancement - methods Radiographic Image Interpretation, Computer-Assisted - methods RADIOLOGY AND NUCLEAR MEDICINE Reproducibility of Results Sensitivity and Specificity Signal Processing, Computer-Assisted SKELETON Skull - diagnostic imaging Tissues Vascular system Visualization
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