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  • Title: [Preoperative wire localisation of breast lesions by tissue harmonic imaging (THI) sonography].
    Author: Jung EM, Clevert DA, Lutz R, Kett H, Rupp N.
    Journal: Rofo; 2002 Sep; 174(9):1121-5. PubMed ID: 12221570.
    Abstract:
    PURPOSE: To obtain a fast and reliable preoperative wire localisation of occult lesions in dense breast tissue by tissue harmonic imaging (THI) sonography when localisation by mammography is not reliable enough. MATERIAL AND METHODS: In addition to biplane mammography for breast screening or for follow-up examination after breast-saving therapy, ultrasound was performed by two independent radiologists in 350 patients with mastopathic or fibrotic breast tissue. Using a multifrequency probe (5 - 10 MHz), lesions were documented by conventional B-mode and by THI in similar projections. In 25 lesions not precisely identified in mammography sonographically guided puncture with wire localisation was performed. RESULTS: In 22 of 350 patients 25 circumscribed suspicious lesions with an average diameter of 8 mm were identified, regarded suspicious by ultrasound but not by mammography. Nineteen of 25 lesions found by M-Mode and THI, an additional 6 only by THI. Guided puncture and wire localisation was achieved in 10 minutes on the average. In B-mode, the course of needle and wire was reliably seen in 16 of 25 cases, in THI in all cases. After surgical removal of tissue, histopathology revealed a ductal or lobular carcinoma in 19 cases, metastasis in three cases and benign complicated cysts with fibrotic tissue in the remaining three cases. CONCLUSION: THI is superior to B-mode ultrasound in differentiating suspicious lesions in dense glandular breast tissue. If tumor signs in mammography are not reliable enough or if a precise localisation is not possible, sonographically guided puncture by THI can give reliable results and, furthermore, is faster and more comfortable for the patient than localisation by mammography.
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