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(Radiology. 2001;219:288-293.)
© RSNA, 2001

Technical Developments

Reduction of Patient Motion Artifacts in Digital Subtraction Angiography: Evaluation of a Fast and Fully Automatic Technique1

Erik H. W. Meijering, PhD, Wiro J. Niessen, PhD, Jeannette Bakker, MD, PhD, Aart J. van der Molen, MD, Gerard A. P. de Kort, MD, Rob T. H. Lo, MD, Willem P. T. M. Mali, MD, PhD and Max A. Viergever, PhD

1 From the Image Sciences Institute, University Medical Center Utrecht, the Netherlands. Received March 23, 2000; revision requested May 13; revision received July 31; accepted August 29. Address correspondence to E.H.W.M., Biomedical Imaging Group, Swiss Federal Institute of Technology, EPFL/DMT/IOA/BIG, BM-Ecublens, CH-1015 Lausanne, Switzerland (e-mail: erik.meijering @epfl.ch).

The performance of an automatic technique for the reduction of patient motion artifacts in digital subtraction angiography was evaluated. Four observers assessed the quality of 104 cerebral digital subtraction angiographic images that were processed by means of both the automatic technique and manual pixel shifting. The automatic technique resulted in better image quality and was considerably less time-consuming.

Index terms: Cerebral angiography, technology, 10.12483 • Digital subtraction angiography, technology, 10.12483 • Images, artifact • Images, processing • Images, quality




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