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  • Title: Doppler ultrasonography criteria of superior mesenteric artery stenosis.
    Author: Biri S, Biri İ, Gultekin Y, Yurdakul M, Ozdemir M, Tola M.
    Journal: J Clin Ultrasound; 2019 Jun; 47(5):267-271. PubMed ID: 30697764.
    Abstract:
    PURPOSE: The techniques mostly used for the diagnosis of superior mesenteric artery (SMA) stenosis are computed tomography angiography (CTA), and magnetic resonance angiography. We aimed to evaluate color-coded Doppler Ultrasonography (CDUS) for the detection of SMA stenoses and to determine Doppler criteria. METHODS: We identified retrospectively 65 patients with CTA images of SMA stenosis and examined them with CDUS for the Doppler measurement of SMA peak systolic flow velocity (PSV), end-diastolic velocity (EDV), and mesenterico-aortic ratio (MAR). Results were analyzed with receiver-operating characteristic curve analysis. RESULTS: The optimal threshold values for determining 50%-69% SMA stenoses were PSV >280 cm/s, EDV >45 cm/s, and MAR >3.6. For identifying 70%-99% SMA stenoses, they were PSV >395 cm/s, EDV >74 cm/s, and MAR >3.6. CONCLUSION: CDUS is a convenient method with high accuracy for identifying SMA stenosis. PSV yielded better results than EDV and MAR.
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