Publication | Closed Access
Performing a breast biopsy with a directional, vacuum-assisted biopsy instrument.
226
Citations
0
References
1997
Year
Medical UltrasoundEngineeringMedical TechnologyMinimally Invasive ProcedureBreast BiopsyClinical AnatomySurgeryBiomedical EngineeringAccurate Breast BiopsyMedical InstrumentationSurgical PathologyBreast ImagingBreast SurgeryRadiologyDiagnostic DeviceMedical ImagingInvasive Breast BiopsyImage GuidanceUltrasoundLiquid BiopsyBreast CancerMedicine
A new minimally invasive breast biopsy technique uses a directional, vacuum‑assisted instrument that allows confident sampling under both ultrasound and stereotactic guidance. The device pulls tissue into a probe with vacuum, then removes specimens without probe withdrawal, rotating the aperture to target the lesion and collecting at least 15 contiguous samples of 1,500 mg with an 11‑gauge probe, with a clip placed post‑biopsy and patients followed for complications. Mastering this technique provides radiologists with an additional, valuable tool for accurate breast biopsy in their community.
A recently developed method of minimally invasive breast biopsy involves use of a directional, vacuum-assisted instrument. Use of this instrument requires some changes in techniques and applications of breast biopsy, but it enables confident biopsy of breast lesions under both ultrasound (US) and stereotactic guidance. The device uses vacuum to pull tissue into the probe and to remove the specimen without withdrawing the probe each time. For stereotactic biopsy, to target the lesion, the probe is placed anterior or posterior to the lesion and stereotactic positioning views are obtained; for a US-guided procedure, the probe is advanced posterior to the lesion. Next, the direction that the probe aperture must be rotated to face the lesion is determined. Tissue samples are obtained at consecutive clock positions of 1 1/2-hour intervals to achieve contiguous sampling. At least 15 samples are obtained with an 11-gauge probe to acquire a minimum of 1,500 mg of tissue. If postbiopsy images reveal that the lesion has been removed, a percutaneous clip is placed to mark the biopsy site for follow-up examination and possible further treatment. Patients are examined the next day and given the biopsy results and treatment considerations, if needed; they are followed up approximately 1 week later to detect any complications (eg, discomfort, ecchymosis). By learning how to perform a directional, vacuum-assisted biopsy with either stereotactic or US guidance, the radiologist has an additional, valuable tool for bringing accurate breast biopsy to his or her community.