Add like
Add dislike
Add to saved papers

Using dual-detector helical CT angiography to detect deep venous thrombosis in patients with suspicion of pulmonary embolism: diagnostic value and additional findings.

OBJECTIVE: The purpose of this study was to assess the value of dual-slice helical CT angiography in detecting deep venous thrombosis in patients in whom acute pulmonary embolism was suspected and to describe the additional extrathoracic findings.

SUBJECTS AND METHODS: Sixty-five consecutive patients were examined for suspected pulmonary embolism using helical CT of the chest (2.7-mm collimation; table speed, 7.5 mm/sec; 100-140 mL of contrast medium injected at a rate of 3 mL/sec) followed by CT of the lower limbs (6.5-mm collimation; table speed, 10 mm/sec) without any additional contrast medium injection. Sequential scanning of the abdomen was performed using 10-mm collimation and an interval of 40 mm. Color Doppler sonography of the lower limbs was done within 24 hr of CT by two radiologists who were unaware of CT findings. Results of CT venography were compared with those of Doppler sonography and with phlebography or repeated focalized sonography in cases of discrepancy.

RESULTS: Twenty-two patients had pulmonary embolism revealed on chest CT. Sixteen patients had a deep venous thrombosis. Thirteen patients with pulmonary embolism had a deep venous thrombosis. Three patients with deep venous thrombosis had no pulmonary embolism. Sensitivity and specificity for diagnosing deep venous thrombosis with CT was 93% and 97%, respectively (kappa = 0.88). Additional extrathoracic findings were observed in four patients.

CONCLUSION: Combined CT venography with dual-slice scanning is an accurate method to diagnose deep venous thrombosis that may reveal additional imaging findings in some patients with possible pulmonary embolism.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

Related Resources

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app