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Colour duplex scanning and phlebography in deep vein thrombosis
G V Belcaro1, G Laurora, M R Cesarone
1Microcirculation Laboratory, Università Abruzzese G. D'Annunzio, Chieti, Italy.
Panminerva Medica
|January 1, 1992
Summary
Color duplex scanning is a safe and effective method for detecting deep vein thrombosis (DVT). This study found it to be as accurate as phlebography for DVTs above the knee.
Area of Science:
- Vascular Medicine
- Diagnostic Imaging
Background:
- Clinical assessment of deep venous thrombosis (DVT) can be unreliable.
- Color duplex scanning offers a safer alternative to phlebography for DVT detection.
Purpose of the Study:
- To compare the diagnostic accuracy of color duplex scanning with phlebography for suspected deep venous thrombosis.
- To evaluate the correlation between color duplex scanning and phlebography in DVT diagnosis.
Main Methods:
- A study involving 120 consecutive patients with suspected DVT.
- Both color duplex scanning and phlebography were performed on each patient.
- Comparison of results from both diagnostic modalities.
Main Results:
- High concordance between the two methods: 102 positive and 16 negative cases.
- Color duplex scanning showed 98% sensitivity, 100% specificity, and 100% positive predictive value.
- Negative predictive value for color duplex scanning was 88.8%.
Conclusions:
- Color duplex scanning is a highly sensitive and specific diagnostic tool for deep venous thrombosis.
- The diagnostic efficacy of color duplex scanning is comparable to phlebography, particularly for DVTs located above the knee.