Related Experiment Video
Updated: Sep 14, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
[Diagnosis of arterial vascular diseases of the lower extremities with color-coded duplex sonography]
H C Koennecke1, G Fobbe, M M Hamed
1Klinik für Radiologie, Abteilung für Röntgendiagnostik, FU Berlin, Klinikum Steglitz.
Insights
Colour-coded duplex sonography accurately evaluates chronic arterial disease in lower extremities. This noninvasive method shows significant improvement over traditional duplex sonography for diagnosing vascular lesions.
Area of Science:
- Vascular Medicine
- Diagnostic Imaging
- Medical Technology
Background:
- Chronic arterial disease affects lower extremities, necessitating accurate diagnostic tools.
- Traditional duplex sonography has limitations in evaluating complex vascular lesions.
- Arteriography is an invasive standard but carries risks.
Purpose of the Study:
- To assess the diagnostic accuracy of colour-coded duplex sonography (CCDS) in patients with chronic arterial disease.
- To compare CCDS findings with arteriography in evaluating lower extremity vasculature.
- To determine the effectiveness of CCDS as a noninvasive diagnostic method.
Main Methods:
- Fifty-three patients with chronic arterial disease underwent examination using CCDS.
- Results from CCDS were compared with findings from conventional arteriography.
- Direct vessel visualization was used for comparison where possible.
Main Results:
- Complete agreement between CCDS and arteriography was observed for lesion localization and severity in directly visualized vessels.
- Minor difficulties were encountered in evaluating distal high-grade stenoses and occlusions with CCDS.
- CCDS demonstrated rapid and accurate evaluation of lower extremity vessels.
Conclusions:
- Colour-coded duplex sonography is a highly accurate noninvasive tool for evaluating lower extremity arterial disease.
- CCDS offers significant diagnostic improvements compared to traditional duplex sonography.
- This technique enhances the noninvasive assessment of vascular lesions in the lower limbs.
Abstract:
Fifty-three patients with chronic arterial disease were examined with colour-coded duplex sonography and the results compared with those of arteriography. In those vessels where direct demonstration was possible, there was complete agreement regarding the localisations and severity of lesions. There was some difficulty in evaluating distal high-grade stenoses and occlusions. The results indicate that by means of colour-coded duplex sonography, rapid and accurate evaluation of the vessels in the lower extremities can be achieved. The new method represents a significant improvement in noninvasive diagnosis, particularly as compared with traditional duplex sonography.
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