B-Flow - sonographische Beurteilung und Therapie femoraler Pseudoaneurysmen

Jung, Ernst-Michael; Lutz, Robert J.; Clevert, D.‐A.; Rupp, N

doi:10.1055/s-2001-16978

Cited by 13 publications

(7 citation statements)

References 2 publications

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“…The frequency of puncture aneurysm seems to be high but is in the range of other studies on percutaneous intravascular interventions via femoral access which report on this complication in up to 9.1% of patients [16,17,18]. As compared with a historical group from our own institution, in which puncture aneurysm was observed in one of 42 patients [9], there is no statistically significant difference (p>0.05).…”

Section: Discussioncontrasting

confidence: 59%

Clopidogrel plus long-term aspirin after femoro-popliteal stenting. The CLAFS project: 1- and 2-year results

et al. 2004

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The aim of this study was to determine the patency rate after femoro-popliteal stenting followed by oral clopidogrel plus long-term aspirin. In a prospective trial, 31 patients with a total of 33 femoro-popliteal artery lesions (21 stenoses, 12 occlusions; 24 femoral, 9 popliteal) were treated with flexible tantalum stents after unsuccessful percutaneous transluminal angioplasty (PTA) preceded by local fibrinolysis in 5 of 12 patients with total occlusion. Post-interventionally, oral aspirin 100 mg was started simultaneously for the long term and was combined with an oral loading dose of 300 mg clopidogrel, followed by 75 mg clopidogrel daily for 28 days. Patients were followed for at least 12 months (maximum 34 months) by clinical examination, Doppler pressure measurement, color and duplex sonography, and angiography in case of suspicion of restenosis. In a retrospective analysis, the results were compared with those of historical groups of patients having received aspirin only (41 patients) or a long-term high-dose low molecular weight heparin (LMWH)+aspirin treatment (42 patients). Three small puncture aneurysms were treated successfully by conservative means and were categorized as minor bleeding complication. Cumulative primary patency rate (PPR) was 76 +/- 7.5% (1 year), and 70 +/- 9.6% (2 years) in the clopidogrel+aspirin group, thus being tendentiously better than in the aspirin-only group showing 75 +/- 4.6% (1 year), and 50 +/- 8.1% (2 years). Long-term high-dose LMWH+aspirin treatment showed 87 +/- 5.8% (1 year), and 72 +/- 9.1% (2 years), thus being superior to the other treatment regimes, with a statistically significant difference (p<0.05) between the LMWH+aspirin and the aspirin group. Clopidogrel plus aspirin is a safe medication regimen and may be effective in the prevention of early stent thrombosis. Mid- and long-term patency rate seems to be intermediate as compared with other therapeutic regimens. The LMWH+aspirin seems to be superior compared with CLAFS; however, randomized studies with larger patient numbers are recommended.

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Section: Discussioncontrasting

confidence: 59%

Clopidogrel plus long-term aspirin after femoro-popliteal stenting. The CLAFS project: 1- and 2-year results

et al. 2004

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“…B-flow, a markedly improved echo amplitude imaging technique with a high spatial resolution, has been described as a suitable diagnostic method with some advantages compared to CCDS in the treatment of femoral pseudoaneurysms, such as the absence of angle dependency, the absence of Doppler artifacts, and the absence of vessel wall overwriting [17]. For more than 2 years B-flow has been the imaging modality of choice at our department when performing UGTI.…”

Section: Discussionmentioning

confidence: 99%

Pseudoaneurysm in the iliac fossa after renal transplantation—treatment with ultrasound-guided thrombin injection

2006

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“…Flow direction is marked as dots or dashes. One major advantage is the lack of color blooming or aliasing artifacts [6][7][8][9]. In our studies, both B-flow modes were used in all cases.…”

Section: Methodsmentioning

confidence: 99%

Improved diagnosis of vascular dissection by ultrasound B-flow: a comparison with color-coded Doppler and power Doppler sonography

et al. 2004

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The purpose was to evaluate the diagnostic results of different ultrasound techniques: color-coded Doppler (CCD), power Doppler (PD) and B-flow in the diagnosis of vascular dissection. Findings from 68 patients with arterial dissection proven either by vascular ultrasound (US) or by magnetic resonance angiography (MRA), computed tomographic angiography (CTA) or intra-arterial digital subtraction angiography (DSA) were reviewed in retrospect. The study compared results from three different modes of ultrasound, i.e., CCD, PD and B-flow, in dissections of the carotid artery (n=11), of the vertebral artery (n=9), of the abdominal aorta (n=13), of the iliac artery (n=12) and of the femoral artery (n=23). MRA, CTA and DSA were considered as reference standard. The sensitivity of CCD for detecting all dissections was 78%, 84% for the PD and 98% for B-flow. For carotid artery dissection, the sensitivity of CCD, PD and B-flow was 82, 91 and 98%, for the vertebral artery 67, 78 and 98%, for the abdominal aorta 85, 85 and 98%, for the iliac artery 67, 75 and 98%, for the femoral artery 83, 87 and 98%, respectively. Intima flaps, fissures of membranes and residual flow within the true and false lumen were better detected by B-flow than by CCD and PD. The lack of angle dependence of the US probe in B-flow made the examination procedure easier. In the cine mode of B-flow, the pulse synchronic movement of the membrane was more apparent than in any other imaging method. With B-flow, accuracy for the diagnosis of arterial dissection is improved compared to CCD and PD. Flow within the true and false lumen, low-echo thrombi, intramural hematoma and even movements of the dissection membrane are clearly distinguished.

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B-Flow - sonographische Beurteilung und Therapie femoraler Pseudoaneurysmen

Abstract: The newly developed B-flow detects both slow and fast flow phenomena. Visualisation of the fistula canal and the aneurysm sack is more reliable and examiner-independent than other Doppler methods such as CCD and PD. This allows better compression treatment of the fistula canal.

Cited by 13 publications

References 2 publications

Clopidogrel plus long-term aspirin after femoro-popliteal stenting. The CLAFS project: 1- and 2-year results

Clopidogrel plus long-term aspirin after femoro-popliteal stenting. The CLAFS project: 1- and 2-year results

Pseudoaneurysm in the iliac fossa after renal transplantation—treatment with ultrasound-guided thrombin injection

Improved diagnosis of vascular dissection by ultrasound B-flow: a comparison with color-coded Doppler and power Doppler sonography

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