Dynamic contrast-enhanced ultrasound and transient arterial occlusion for quantification of arterial perfusion reserve in peripheral arterial disease
OBJECTIVE: To quantify muscular micro-perfusion and arterial perfusion reserve in peripheral arterial disease (PAD) with dynamic contrast-enhanced ultrasound (CEUS) and transient arterial occlusion. MATERIALS AND METHODS: This study had local institutional review board approval and written informed...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2012
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| In: |
European journal of radiology
Year: 2012, Jahrgang: 81, Heft: 11, Pages: 3332-3338 |
| ISSN: | 1872-7727 |
| DOI: | 10.1016/j.ejrad.2011.12.030 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1016/j.ejrad.2011.12.030
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| Verfasserangaben: | E. Amarteifio, S. Wormsbecher, M. Krix, S. Demirel, S. Braun, S. Delorme, D. Böckler, H.-U. Kauczor, M.-A. Weber |
MARC
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| 245 | 1 | 0 | |a Dynamic contrast-enhanced ultrasound and transient arterial occlusion for quantification of arterial perfusion reserve in peripheral arterial disease |c E. Amarteifio, S. Wormsbecher, M. Krix, S. Demirel, S. Braun, S. Delorme, D. Böckler, H.-U. Kauczor, M.-A. Weber |
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| 520 | |a OBJECTIVE: To quantify muscular micro-perfusion and arterial perfusion reserve in peripheral arterial disease (PAD) with dynamic contrast-enhanced ultrasound (CEUS) and transient arterial occlusion. MATERIALS AND METHODS: This study had local institutional review board approval and written informed consent was obtained from all subjects. We examined the dominant lower leg of 40 PAD Fontaine stage IIb patients (mean age, 65 years) and 40 healthy volunteers (mean age, 54 years) with CEUS (7 MHz; MI, 0.28) during continuous intravenous infusion of 4.8 mL microbubbles. Transient arterial occlusion at mid-thigh level simulated physical exercise. With time-CEUS-intensity curves obtained from regions of interest within calf muscles, we derived the maximum CEUS signal after occlusion (max) and its time (tmax), slope to maximum (m), vascular response after occlusion (AUC(post)), and analysed accuracy, receiver operating characteristic (ROC) curves, and correlations with ankle-brachial index (ABI) and walking distance. RESULTS: All parameters differed in PAD and volunteers (p<0.014). In PAD, tmax was delayed (31.2±13.6 vs. 16.7±8.5 s, p<0.0001) and negatively correlated with ankle-brachial-index (r=-0.65). m was decreased in PAD (4.3±4.6 mL/s vs. 13.1±8.4 mL/s, p<0.0001) and had highest diagnostic accuracy (sensitivity/specificity, 75%/93%) for detection of diminished muscular micro-perfusion in PAD (cut-off value, m<5∼mL/s). Discriminant analysis and ROC curves revealed m, and AUC(post) as optimal parameter combination for diagnosing PAD and therefore impaired arterial perfusion reserve. CONCLUSIONS: Dynamic CEUS with transient arterial occlusion quantifies muscular micro-perfusion and arterial perfusion reserve. The technique is accurate to diagnose PAD. | ||
| 650 | 4 | |a Aged | |
| 650 | 4 | |a Algorithms | |
| 650 | 4 | |a Contrast Media | |
| 650 | 4 | |a Female | |
| 650 | 4 | |a Humans | |
| 650 | 4 | |a Image Enhancement | |
| 650 | 4 | |a Image Interpretation, Computer-Assisted | |
| 650 | 4 | |a Male | |
| 650 | 4 | |a Perfusion Imaging | |
| 650 | 4 | |a Peripheral Arterial Disease | |
| 650 | 4 | |a Phospholipids | |
| 650 | 4 | |a Reproducibility of Results | |
| 650 | 4 | |a Sensitivity and Specificity | |
| 650 | 4 | |a Sulfur Hexafluoride | |
| 650 | 4 | |a Ultrasonography | |
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| 700 | 1 | |a Weber, Marc-André |d 1973- |e VerfasserIn |0 (DE-588)142373044 |0 (DE-627)704211432 |0 (DE-576)330376802 |4 aut | |
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