Intraoperative Margin Assessment in Breast Cancer With HSI-Raman

Summary

Breast-conserving surgery (lumpectomy) aims to remove cancer while preserving healthy tissue, but up to 20% of patients require a second operation because cancer cells remain at the edge (margin) of the removed tissue. The Spectra-BREAST study evaluates a new optical device that combines hyperspectral imaging (HIS) and Raman spectroscopy (RS) with artificial-intelligence analysis to quickly assess the entire surface of excised breast specimens during surgery. By flagging areas at risk of positive margins in real time, the device may help surgeons remove any remaining cancer in a single procedure.

In this prospective, single-arm diagnostic study, surgeons will use the Spectra-BREAST system on freshly resected breast tissue from up to 99 women undergoing lumpectomy for invasive carcinoma or ductal carcinoma in situ. First, the device's cancer-detection algorithms will be trained on 74 specimens with known pathology. Then, in a separate group of patients, the fully integrated device will be tested on all six faces of each lumpectomy specimen and its predictions will be compared against the gold-standard histopathology margin assessment. Key measures include the sensitivity and specificity of the device's margin predictions, the time needed to generate results, and the device's usability in a clinical setting.

Conditions

• Breast Cancer

Interventions

DIAGNOSTIC_TEST

Spectra-BREAST system in Invasive Breast Cancer

Participants' excised breast lumpectomy specimens will be immediately imaged ex vivo using the investigational Spectra-BREAST system, a handheld optical device integrating two modalities Hyperspectral imaging (HSI): HSI captures reflectance spectra across 400-1400 nm over the entire specimen surface (up to 5 × 5 cm field of view). HIS provides spatial maps of tissue chemical composition and morphology to highlight regions suspicious for residual carcinoma. Point-wise Raman spectroscopy (RS): RS will allow to acquire high-resolution molecular fingerprints both at high and low Raman shift on selected "hotspots" flagged by HSI as at risk. RS will be acquired on the surface of the specimens confirming the possible presence of positive margins Spectra-BREAST system will allow to provide a near real time feedback to the surgeon on the presence and position of positive margins allowing a further resection if tissue if needed.

DIAGNOSTIC_TEST

Spectra-BREAST system in DCIS Breast Cancer

Participants' excised breast lumpectomy specimens will be immediately imaged ex vivo using the investigational Spectra-BREAST system, a handheld optical device integrating two modalities Hyperspectral imaging (HSI): HSI captures reflectance spectra across 400-1400 nm over the entire specimen surface (up to 5 × 5 cm field of view). HIS provides spatial maps of tissue chemical composition and morphology to highlight regions suspicious for residual carcinoma. Point-wise Raman spectroscopy (RS): RS will allow to acquire high-resolution molecular fingerprints both at high and low Raman shift on selected "hotspots" flagged by HSI as at risk. RS will be acquired on the surface of the specimens and using a special needle probe 2 mm below the tissue surface thus confirming the possible presence of positive margins. Spectra-BREAST system will allow to provide a near real time feedback to the surgeon on the presence and position of positive margins allowing a further resection if tissue if needed

Sponsors & Collaborators

• Istituti Clinici Scientifici Maugeri SpA

  lead OTHER

Principal Investigators

• Carlo F Morasso, Ph.D. · Istituti Clinici Scientifici Maugeri

Eligibility

Min Age

18 Years

Max Age

85 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-10-06

Primary Completion

2028-10-31

Completion

2028-12-31

Countries

• Italy

Study Locations