Combined static and dynamic computed tomography angiography of peripheral artery occlusive disease: comparison with magnetic resonance angiography
To compare in patients with known peripheral artery occlusive disease (PAOD), image quality of a combined CTA to a combined MRA protocol, including both static and dynamic acquisitions. Twenty-two patients with PAOD were examined with a combined CTA and MRA protocol consisting of static acquisitions...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
26 February 2018
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| In: |
Clinical Investigation
Year: 2018, Volume: 41, Issue: 8, Pages: 1205-1213 |
| ISSN: | 2041-6806 |
| DOI: | 10.1007/s00270-018-1911-6 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1007/s00270-018-1911-6 Verlag: https://link.springer.com/article/10.1007/s00270-018-1911-6 
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| Author Notes: | Philipp Riffel, Holger Haubenreisser, Kai Higashigaito, Hatem Alkadhi, John N. Morelli, Bettina Alber, Stefan O. Schoenberg, Thomas Henzler |
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| 520 | |a To compare in patients with known peripheral artery occlusive disease (PAOD), image quality of a combined CTA to a combined MRA protocol, including both static and dynamic acquisitions. Twenty-two patients with PAOD were examined with a combined CTA and MRA protocol consisting of static acquisitions (s-CTA, s-MRA) of the entire runoff and dynamic acquisitions (d-CTA, d-MRA) of the calves. Two radiologists compared image quality of the s-MRA versus s-CTA as well as d-MRA versus d-CTA. Image quality was assessed on a segmental basis using a 4-point Likert scale. For s-CTA, 76% of segments were rated as excellent or good. For s-MRA, 50% of segments were rated as excellent or good (p < 0.0001). For d-CTA, median image quality score for all segments was rated as excellent for both readers. For d-MRA, median image quality for the different segments ranged from moderate to good. For both d-CTA and d-MRA, the median image quality scores were significantly higher for all segments of the lower limb compared with the static examinations of the lower limb segments (all p values < 0.0001). In patients with PAOD category 4-6, 80% of segments were rated as excellent or good for d-CTA, while 45% of segments were rated as poor or non-diagnostic for d-MRA. In patients with known PAOD, a combined static and dynamic CTA examination improves image quality relative to static and dynamic MRA and should be considered as an alternative to MRA, particularly in patients with advanced stage PAOD. | ||
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