Detection of Cardioembolic Sources With Nongated Cardiac Computed Tomography Angiography in Acute Stroke : Results From the ENCLOSE Study
BACKGROUND: Identifying cardioembolic sources in patients with acute ischemic stroke is important for the choice of secondary prevention strategies. We prospectively investigated the yield of admission (spectral) nongated cardiac computed tomography angiography (CTA) to detect cardioembolic sources in stroke.
METHODS: Participants of the ENCLOSE study (Improved Prediction of Recurrent Stroke and Detection of Small Volume Stroke) with transient ischemic attack or acute ischemic stroke with assessable nongated head-to-heart CTA at the University Medical Center Utrecht were included between June 2017 and March 2022. The presence of cardiac thrombus on cardiac CTA was based on a Likert scale and dichotomized into certainly or probably absent versus possibly, probably, or certainly present. The diagnostic certainty of cardiac thrombus was evaluated again on spectral computed tomography reconstructions. The likelihood of a cardioembolic source was determined post hoc by an expert panel in patients with cardiac thrombus on CTA. Parametric and nonparametric tests were used to compare the outcome groups.
RESULTS: Forty four (12%) of 370 included patients had a cardiac thrombus on admission CTA: 35 (9%) in the left atrial appendage and 14 (4%) in the left ventricle. Patients with cardiac thrombus had more severe strokes (median National Institutes of Health Stroke Scale score, 10 versus 4; P=0.006), had higher clot burden (median clot burden score, 9 versus 10; P=0.004), and underwent endovascular treatment more often (43% versus 20%; P<0.001) than patients without cardiac thrombus. Left atrial appendage thrombus was present in 28% and 6% of the patients with and without atrial fibrillation, respectively (P<0.001). The diagnostic certainty for left atrial appendage thrombus was higher for spectral iodine maps compared with the conventional CTA (P<0.001). The presence of cardiac thrombus on CTA increased the likelihood of a cardioembolic source according to the expert panel (P<0.001).
CONCLUSIONS: Extending the stroke CTA to cover the heart increases the chance of detecting cardiac thrombi and helps to identify cardioembolic sources in the acute stage of ischemic stroke with more certainty. Spectral iodine maps provide additional value for detecting left atrial appendage thrombus.
REGISTRATION: URL: https://www.
CLINICALTRIALS: gov; Unique identifier: NCT04019483.
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:54 |
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| Enthalten in: |
Stroke - 54(2023), 3 vom: 13. März, Seite 821-830 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kauw, Frans [VerfasserIn] |
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| Links: |
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| Themen: |
Angiography |
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| Anmerkungen: |
Date Completed 05.03.2023 Date Revised 24.04.2023 published: Print-Electronic ClinicalTrials.gov: NCT04019483 ErratumIn: Stroke. 2023 May;54(5):e229. - PMID 37094036 Citation Status MEDLINE |
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| doi: |
10.1161/STROKEAHA.122.041018 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM352887346 |
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| 100 | 1 | |a Kauw, Frans |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Detection of Cardioembolic Sources With Nongated Cardiac Computed Tomography Angiography in Acute Stroke |b Results From the ENCLOSE Study |
| 264 | 1 | |c 2023 | |
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| 500 | |a Date Completed 05.03.2023 | ||
| 500 | |a Date Revised 24.04.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a ClinicalTrials.gov: NCT04019483 | ||
| 500 | |a ErratumIn: Stroke. 2023 May;54(5):e229. - PMID 37094036 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: Identifying cardioembolic sources in patients with acute ischemic stroke is important for the choice of secondary prevention strategies. We prospectively investigated the yield of admission (spectral) nongated cardiac computed tomography angiography (CTA) to detect cardioembolic sources in stroke | ||
| 520 | |a METHODS: Participants of the ENCLOSE study (Improved Prediction of Recurrent Stroke and Detection of Small Volume Stroke) with transient ischemic attack or acute ischemic stroke with assessable nongated head-to-heart CTA at the University Medical Center Utrecht were included between June 2017 and March 2022. The presence of cardiac thrombus on cardiac CTA was based on a Likert scale and dichotomized into certainly or probably absent versus possibly, probably, or certainly present. The diagnostic certainty of cardiac thrombus was evaluated again on spectral computed tomography reconstructions. The likelihood of a cardioembolic source was determined post hoc by an expert panel in patients with cardiac thrombus on CTA. Parametric and nonparametric tests were used to compare the outcome groups | ||
| 520 | |a RESULTS: Forty four (12%) of 370 included patients had a cardiac thrombus on admission CTA: 35 (9%) in the left atrial appendage and 14 (4%) in the left ventricle. Patients with cardiac thrombus had more severe strokes (median National Institutes of Health Stroke Scale score, 10 versus 4; P=0.006), had higher clot burden (median clot burden score, 9 versus 10; P=0.004), and underwent endovascular treatment more often (43% versus 20%; P<0.001) than patients without cardiac thrombus. Left atrial appendage thrombus was present in 28% and 6% of the patients with and without atrial fibrillation, respectively (P<0.001). The diagnostic certainty for left atrial appendage thrombus was higher for spectral iodine maps compared with the conventional CTA (P<0.001). The presence of cardiac thrombus on CTA increased the likelihood of a cardioembolic source according to the expert panel (P<0.001) | ||
| 520 | |a CONCLUSIONS: Extending the stroke CTA to cover the heart increases the chance of detecting cardiac thrombi and helps to identify cardioembolic sources in the acute stage of ischemic stroke with more certainty. Spectral iodine maps provide additional value for detecting left atrial appendage thrombus | ||
| 520 | |a REGISTRATION: URL: https://www | ||
| 520 | |a CLINICALTRIALS: gov; Unique identifier: NCT04019483 | ||
| 650 | 4 | |a Clinical Trial | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a angiography | |
| 650 | 4 | |a atrial fibrillation | |
| 650 | 4 | |a heart | |
| 650 | 4 | |a humans | |
| 650 | 4 | |a iodine | |
| 650 | 4 | |a stroke | |
| 700 | 1 | |a Velthuis, Birgitta K |e verfasserin |4 aut | |
| 700 | 1 | |a Takx, Richard A P |e verfasserin |4 aut | |
| 700 | 1 | |a Guglielmo, Marco |e verfasserin |4 aut | |
| 700 | 1 | |a Cramer, Maarten J |e verfasserin |4 aut | |
| 700 | 1 | |a van Ommen, Fasco |e verfasserin |4 aut | |
| 700 | 1 | |a Bos, Anneloes |e verfasserin |4 aut | |
| 700 | 1 | |a Bennink, Edwin |e verfasserin |4 aut | |
| 700 | 1 | |a Kappelle, L Jaap |e verfasserin |4 aut | |
| 700 | 1 | |a de Jong, Hugo W A M |e verfasserin |4 aut | |
| 700 | 1 | |a Dankbaar, Jan W |e verfasserin |4 aut | |
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