Small (1.5 cm or less) liver metastases: US-guided biopsy

被引:25
作者
Middleton, WD [1 ]
Hiskes, SK [1 ]
Teefey, SA [1 ]
Boucher, LD [1 ]
机构
[1] WASHINGTON UNIV, SCH MED, DEPT PATHOL, ST LOUIS, MO 63110 USA
关键词
liver; biopsy; liver neoplasms; secondary; ultrasound; (US); guidance; utilization;
D O I
10.1148/radiology.205.3.9393528
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PURPOSE: To determine the techniques used for and the success of ultrasound (US)-guided biopsy of hepatic metastases 1.5 cm in diameter or smaller. MATERIALS AND METHODS: A computer search of radiology reports identified 29 patients who underwent US-guided biopsy of 30 hepatic masses 1.5 cm in diameter or smaller suspected to be metastases. All 30 lesions were sampled for biopsy with the free-hand technique. Parameters assessed were lesion size and location, needle size, transducer type, number of passes made, cytologic or histologic analysis, and final histologic diagnosis. Biopsies were considered successful if a positive histologic diagnosis of metastasis was made. RESULTS: The mean lesion diameter was 1.3 cm (range, 0.9-1.5 cm). Lesion depth was 3-9 cm (mean, 5 cm). Twenty biopsies were performed with a 22-gauge aspirating needle and analyzed cytologically. An average of 2.7 passes were made per lesion. Phased-array sector transducers were used in 23 lesions. In 28 (93%) lesions and 28 (96%) patients, an adequate specimen was obtained to establish the histologic diagnosis of metastatic disease. CONCLUSION: US appears to be an effective guidance technique for biopsy of small liver metastases.
引用
收藏
页码:729 / 732
页数:4
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