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The Role of Duplex Scanning in the Selection of Patients with Critical Lower-Limb Ischemia for Infrainguinal Percutaneous Transluminal Angioplasty

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Abstract

Purpose: To investigate the role of duplex scanning in the selection of patients with critical lower-limb ischemia (CLI) for infrainguinal percutaneous transluminal angioplasty (PTA).

Methods: One hundred and sixty-two limbs with CLI (150 patients) that underwent duplex scanning within 3 months prior to conventional diagnostic angiography (n = 88) or infrainguinal PTA (n = 74) were retrospectively studied. The findings obtained from duplex scanning and angiography were analyzed in a masked fashion by two different investigators.

Results: The accuracy, sensitivity, specificity, and negative and positive predictive values of duplex scanning in the selection of patients for infrainguinal PTA were 86%, 84%, 89%, 86%, and 87% respectively. Forty-two procedures (57%) were performed at multiple arterial segments. The accuracy of duplex scanning in the selection of femoropopliteal and crural lesions for PTA was over 85%. However, the sensitivity of duplex scanning in the selection of popliteal and crural lesions for PTA was 49% and 38% respectively, compared with 80% for superior femoral artery lesions. In 39% of patients who were correctly selected for PTA, duplex scanning misdiagnosed one of the multiple lesions treated by PTA.

Conclusion: Duplex scanning can safely be used for the selection of patients for infrainguinal PTA. The sensitivity of duplex scanning in the selection of lesions for PTA was less satisfactory in the popliteal and crural arteries compared with the femoropopliteal arteries.

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Authors and Affiliations

  1. Department of Radiology, University Hospital, S-751 85 Uppsala, Sweden, SE

    Anne-Marie Löfberg

  2. Department of Surgery, University Hospital, S-751 85 Uppsala, Sweden, SE

    Sadettin Karacagil, Anders Hellberg, Annika Boström, Christer Ljungman & Görel Östholm

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  1. Anne-Marie Löfberg
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  2. Sadettin Karacagil
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  3. Anders Hellberg
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  4. Annika Boström
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  5. Christer Ljungman
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  6. Görel Östholm
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Löfberg, AM., Karacagil, S., Hellberg, A. et al. The Role of Duplex Scanning in the Selection of Patients with Critical Lower-Limb Ischemia for Infrainguinal Percutaneous Transluminal Angioplasty. Cardiovasc Intervent Radiol 24, 229–232 (2001). https://doi.org/10.1007/s00270-001-1786-7

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  • DOI: https://doi.org/10.1007/s00270-001-1786-7

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