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PULMONARY EMBOLISM-DVT

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PULMONARY EMBOLISM-DVT

1. Duplex ultrasonography combines real-time, B-mode ultrasonography, which visualizes the vessel with Doppler flow detection, with looking for compress­ibility of vessel and flow.

2. This test is reliable only in symptomatic patients being evaluated for their 1st DVT by an experienced operator (operator-dependent).

3. In these patients, the sensitivity is 93%, while the specific­ity is 98%.

4. It is poor for detecting distal DVT (because the vessels are hard to visualize) and abdominopelvic thrombi (from which most cases of PE arise).

5. High resolution CT is better than ultrasound for detecting thrombosed vessels in the abdomen and pelvis


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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