Journal of Southern Medical University ›› 2014, Vol. 34 ›› Issue (01): 41-.
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Abstract: Objective To assess the accuracy of ultrasound-guided 16G and 18G core needle biopsy for detecting ultrasoundvisible breast lesions with different sonographic features. Methods A total of 955 sonographically detected breast lesionsexamined with ultrasound-guided core needle biopsy (US-CNB) and subsequently surgically excised from July 2005 to July2012 were retrospectively reviewed. Histological findings of US-CNB and the surgical specimens were analyzed foragreements, sensitivities, false negative rates, and underestimate rates according to different sonographic features. Results Thepathological results of the US-CNB showed malignant lesions in 84.1%, high-risk lesions in 8.4%, and benign lesions in 7.5% ofthe samples. The overall agreement rates were 92.4% for 16G CNB and 92.8% for 18G CNB; their complete sensitivities andfalse negative rates were both 98.6% and 1.4%, respectively; the high-risk underestimate rates and DCIS underestimate rateswere 48.0% and 46.2% for 16G CNB vs 53.3% and 41.2% for 18G CNB, showing no significant difference between the twogroups (P>0.01). For both 16G and 18G CNB, the agreements were better for mass lesions than for non-mass lesions (P<0.01).For the mass lesions with a diameter no greater than 10 mm, the agreement rates were lower than the overall data (P<0.01).Calcification in the lesions did not affect the agreement rates (P>0.01). Conclusion Ultrasound-guided 16G and 18G CNB areboth accurate methods for evaluating ultrasound visible breast mass lesions with a diameter larger than 10 mm.
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https://www.j-smu.com/EN/Y2014/V34/I01/41