The application of low dose CT guided thoracic biopsy

Nguyen Dinh Minh1, Vu Hoai Linh1,
1 Department of Diagnostic Imaging, Vietnam-Germany Friendship Hospital

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Abstract

SUMMARY


Purpose: Study the application of low dose CT guided thoracic biopsy.
Materials and Methods: 192 patients with CT guided thoracic biopsy including 100 patients with rutine protocol (group A) and 92 patients with low dose protocol (group B) from 4/2014 to 4/2015.
Results: the average total dose length product is 274.3+/- 172.26 mGy in group A and 93.8+/-32.87 mGy in group B (p<0.001). Effective dose is 3.8+/-2.41 mSv in group A and 1.3 +/-0.46 mSv in group B (p <0.01). Pneumothorax are 17 (17%) in group A and
11 (11.96%) in group B. Three cases in group A and two cases in group B have instantly pneumothorax drainage. Hemothorax is 1
(1%) in group A and 1 (1.1%) in group B. All the complication are stable without intervention.
Conclusion: low dose CT guided thoracic biosy reduces remarkable radiation dose, neither increases the complication nor degrades image quality or diagnostic accuracy.

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References

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