The application of low dose CT guided thoracic biopsy
Main Article Content
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.
Article Details
Keywords
CT guided thoracic, low dose CT guided thoracic biosy
References
1. Grasso RF, Cazzato RL, Luppi G, D’Agostino F, Schena E, Del Vescovo R, Giurazza F, Faiella E, Beomonte ZB. Percutaneous lung biopsies: performance of an optical CT-based navigation system with a lowdose protocol. Eur Radiol 2013; 23 (11): 3071-3076.
2. Kalra MK, Maher MM, Toth TL, Hamberg LM, Blake
MA, Shepard JA, Saini S. Strategies for CT Radiation Dose Optimization. Radiology 2004; 230: 619-628.
3. Larke FJ, Kruger RL, Cagnon CH, Flynn MJ, McNitt-Gray MM, Wu X, Judy PF, Cody DD. Estimated Radiation Dose Associated with Low-Dose Chest CT of Average-Size Participants in the National Lung Screening Trial. AJR Am J Roentgenol 197, no. 5 (2011): 1165-9.
4. McCollough CH, Primak AN, Braun N, Kofler J, Yu L, Christner J. Strategies for Reducing Radiation Dose in CT. Radiol Clin North Am 2009;47: 27-40.
5. Meng XX, Kuai XP, Dong WH, JIa NY, Liu SY, Xiao XS. Comparison of lung lesion biopsies between low-dose CT-guided and conventional CTguided techniques. Acta Radiol 2013; 54 (8): 909-915.