How Magnetic Seed Localization Systems Are Changing Tumor Surgery

Magnetic seed localization systems are becoming a standard in breast-conserving surgery. By offering a precise, non-radioactive solution to locate tumors or lymph nodes, these systems allow for safer and more efficient operations. In this article, we explore how magnetic seed localization works, when it is used, and how it supports modern surgical workflows.

What Is Magnetic Seed Localization?

Magnetic seed localization involves placing a tiny magnetic marker, or seed, into a tumor or lymph node before surgery. During the operation, a handheld detector guides the surgeon toward the marker with visual and audio feedback. This allows for:

• Accurate tumor or node removal
• Scheduling flexibility, since the seed can be placed days in advance
• A non-radioactive alternative to radioactive seed localization (RSL)
• Improved patient comfort compared to wire-guided surgery

Read more about how magnetic seed localization compares to wire guidance.

Clinical Applications in Breast Cancer

Magnetic seed localization is used in various breast cancer surgery scenarios, including:

• Resection of non-palpable breast tumors
• Targeted axillary dissection following neoadjuvant chemotherapy
• Re-excision of previously marked areas
• Localization of biopsy clips placed during diagnosis

It is particularly valuable when tumors are no longer visible after systemic therapy. In these cases, the magnetic seed helps surgeons identify and remove the original tumor location with precision.

Benefits Over Traditional Methods

Traditional methods such as wire-guided or radioactive localization have significant limitations. Wires must be placed on the day of surgery, can cause discomfort, and may shift. Radioactive seeds require strict regulations and handling protocols. Magnetic seed localization systems offer several advantages:

• No radiation safety concerns
• More comfortable for the patient
• Improved OR efficiency and scheduling
• Applicable for both breast and axillary surgery

Learn how these benefits translate into better workflows in our clinical overview.

How Pintuition® Supports Magnetic Localization

The Pintuition Marker® from Sirius Medical is a small magnetic seed placed under image guidance by a radiologist. During surgery, the Pintuition System® detects the seed and provides real-time, directional feedback via sound and screen. This makes the system ideal for:

• Breast-conserving surgery with high accuracy
• Identifying clipped lymph nodes during targeted axillary dissection
• Use in centers without access to nuclear medicine facilities
• Hospitals looking to streamline pre-op and OR coordination

Pintuition® has been used in over 35,000 procedures across 200+ centers worldwide, demonstrating safety, reliability, and clinical value.

Want to see how magnetic seed localization fits into your workflow?

Request a demo or visit our resources page to download factsheets, publications, and implementation guides.

Disclaimer

This article is intended for informational purposes only and should not be considered medical advice. While Sirius Medical is dedicated to improving breast cancer treatment through innovative localization technology, we do not provide medical diagnoses or treatment recommendations. If you experience any symptoms or changes in your breast health, consult a qualified healthcare professional promptly. Early medical evaluation is crucial for accurate diagnosis and effective treatment. Always seek professional guidance for concerns regarding your health.