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European Radiology
Published in: European Radiology 7/2003

01-07-2003 | Head and Neck

Dynamic contrast enhancement of paragangliomas of the head and neck: evaluation with time-resolved 2D MR projection angiography

Authors: Sebastian M. Arnold, Ralph Strecker, Klaus Scheffler, Joachim Spreer, Jörg Schipper, Hartmut P. H. Neumann, Joachim Klisch

Published in: European Radiology | Issue 7/2003

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Abstract.

Our objective was to evaluate tumor hemodynamics of paragangliomas of the head and neck. A 2D magnetic resonance projection angiography (MRPA) protocol was developed. Six patients with histologically proven paragangliomas were included in the study. The sequence protocol and data post-processing procedure were optimized in view of a high temporal resolution and maximum contrast-to-noise ratio. Image-time series of two freely orientated slabs could be obtained. Correlation analysis was performed to generate selective arterial and venous weighted angiographic images. Glomus tumors showed a rapid and intense homogeneous enhancement following the intravenous administration of contrast material. The smallest tumors investigated measured 10 mm and could be visualized clearly. Time-resolved analysis of the tumor enhancement revealed an early bolus arrival within the vascular bed of the tumor and prolonged incomplete washout indicating blood pooling. The dynamic contrast enhancement of glomus tumors can be evaluated non-invasively with MRPA providing a high temporal resolution and high image quality. The characteristic contrast enhancement of glomus tumors can be helpful in the diagnostic workup of lesions that may mimic glomus tumors.
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Metadata
Title
Dynamic contrast enhancement of paragangliomas of the head and neck: evaluation with time-resolved 2D MR projection angiography
Authors
Sebastian M. Arnold
Ralph Strecker
Klaus Scheffler
Joachim Spreer
Jörg Schipper
Hartmut P. H. Neumann
Joachim Klisch
Publication date
01-07-2003
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 7/2003
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-002-1717-3

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