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Erschienen in: The International Journal of Cardiovascular Imaging 2/2012

01.02.2012 | Original Paper

Factors in the technical quality of gadolinium enhanced magnetic resonance angiography for pulmonary embolism in PIOPED III

verfasst von: H. Dirk Sostman, Kathleen A. Jablonski, Pamela K. Woodard, Paul D. Stein, David P. Naidich, Thomas L. Chenevert, John G. Weg, Charles A. Hales, Russell D. Hull, Lawrence R. Goodman, Victor F. Tapson

Erschienen in: The International Journal of Cardiovascular Imaging | Ausgabe 2/2012

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Abstract

In a multi-center trial, gadolinium enhanced magnetic resonance angiography (MRA) for diagnosis of acute pulmonary embolism (PE) had a high rate of technically inadequate images. Accordingly, we evaluated the reasons for poor quality MRA of the pulmonary arteries in these patients. We performed a retrospective analysis of the data collected in the PIOPED III study. We assessed the relationship to the proportion of examinations deemed “uninterpretable” by central readers to the clinical centers, MR equipment platform and vendors, degree of vascular opacification in different orders of pulmonary arteries; type, frequency and severity of image artifacts; patient co-morbidities, symptoms and signs; and reader characteristics. Centers, MR equipment vendor and platform, degree of vascular opacification, and motion artifacts influenced the likelihood of central reader determinations that images were “uninterpretable”. Neither the reader nor patient characteristics (age, body mass index, respiratory rate, heart rate) correlated with the likelihood of determining examinations “uninterpretable”. Vascular opacification and motion artifact are the principal factors influencing MRA interpretability. Some centers obtain better images more consistently, but the reasons for differences between centers are unclear.
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Metadaten
Titel
Factors in the technical quality of gadolinium enhanced magnetic resonance angiography for pulmonary embolism in PIOPED III
verfasst von
H. Dirk Sostman
Kathleen A. Jablonski
Pamela K. Woodard
Paul D. Stein
David P. Naidich
Thomas L. Chenevert
John G. Weg
Charles A. Hales
Russell D. Hull
Lawrence R. Goodman
Victor F. Tapson
Publikationsdatum
01.02.2012
Verlag
Springer Netherlands
Erschienen in
The International Journal of Cardiovascular Imaging / Ausgabe 2/2012
Print ISSN: 1569-5794
Elektronische ISSN: 1875-8312
DOI
https://doi.org/10.1007/s10554-011-9820-7

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