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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain

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Published on: May 10, 2012

SCOUT® Localization Using MRI Guidance: Initial Experience.

Brittany Z Dashevsky¹, Pamela Yan¹, Tie Liang¹

¹Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA.

Journal of Breast Imaging

|June 5, 2024

Summary

This summary is machine-generated.

MRI-guided SCOUT localization is a feasible alternative to wire localization, with no reported complications. While it can be performed during biopsy, predicting its use in breast conservation surgery remains challenging.

Keywords:

breast MRI clinical operations breast MRI techniques breast procedures

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Area of Science:

Radiology
Surgical Oncology
Medical Devices

Background:

The MRI-compatible wireless SCOUT localization system was approved by the FDA in April 2022.
MRI-guided localization is crucial for precise surgical targeting of abnormalities detected on MRI.

Purpose of the Study:

To evaluate the feasibility of MRI-guided SCOUT localization.
To compare the outcomes of MRI-guided SCOUT localization with traditional MRI-guided wire localization.

Main Methods:

Retrospective review of electronic medical records and imaging for patients undergoing MRI-guided SCOUT or wire localization between October 2022 and July 2023.
Statistical analysis using 2-sample proportion and Wilcoxon rank-sum tests to compare complication rates and time to surgery.

Main Results:

14 MRI-guided SCOUT and 23 MRI-guided wire localization cases were analyzed.
All SCOUT placements were uncomplicated and adequately positioned.
No significant differences in complication rates or time from detection to surgery were observed between SCOUT and wire localization.

Conclusions:

MRI-guided SCOUT localization is a feasible alternative to wire localization with no reported complications.
While SCOUT placement during biopsy can eliminate an extra procedure, predicting its suitability for subsequent breast conservation surgery requires further investigation, as 60% of those placed at biopsy were not used for surgery.