Stereotactic directional vacuum-assisted breast biopsy using lateral approach

Area of Science:

• Radiology
• Breast Imaging
• Minimally Invasive Procedures

Background:

• Stereotactic vacuum-assisted breast biopsy (ST-MMT) is a standard diagnostic tool for mammographically detected microcalcifications.
• Limited data exists on the efficacy and application of the lateral approach for ST-MMT.
• This study investigates the utility of the lateral approach in a clinical setting.

Purpose of the Study:

• To evaluate the usefulness of the lateral approach for stereotactic vacuum-assisted breast biopsy.
• To determine if the lateral approach facilitates the use of 11-gauge probes in patients with thin breasts.

Main Methods:

• A cohort of 124 women with microcalcifications underwent ST-MMT using a lateral approach.
• The study utilized an 11-gauge vacuum-assisted probe in all procedures.
• Data was compared with findings from other institutions employing a vertical approach.

Main Results:

• The lateral approach enabled the consistent use of 11-gauge probes, even in breasts as thin as 10 mm.
• Minor vasovagal reactions occurred in 12 patients but resolved without intervention; no major complications were reported.
• Cancer was diagnosed in 37 out of 124 cases (29.8%).
• In contrast, the vertical approach was sometimes precluded by thin breast tissue, preventing the use of 11-gauge probes.

Conclusions:

• The lateral approach offers a significant advantage by allowing the use of 11-gauge probes in patients with thin breasts.
• This technique is especially valuable in populations like Japanese women, who typically have thinner breast tissue.
• The lateral approach enhances the applicability of ST-MMT for diagnosing microcalcifications in diverse patient demographics.