Perimeter Medical Imaging AI

Perimeter Medical Imaging AI Giving surgeons clarity on
margins to act in the moment
and close with confidence Our goal is to improve patient outcomes and lower health care costs. The U.S.

Perimeter Medical Imaging AI is a pioneering medical technology company driven to transform cancer surgery with ultra-high resolution, real-time, advanced imaging tools that address unmet medical needs. Cancer is a global challenge, and we envision a world where patients no longer experience the costly emotional and physical trauma of being called back for a second surgery due to cancer left behin

d. A Toronto, Canada-based company established in 2013, with U.S. headquarters in Dallas, Texas, our proprietary technology allows surgeons to make more informed decisions during the surgical procedure. Until now, current technologies in the OR have not had the image resolution to identify microscopic features of excised tissues and shaved margins at the point-of-care. Our new OCT technology gives them real-time information vs. waiting several days for pathology reports. Perimeter S-Series OCT (Optical Coherence Tomography) is a groundbreaking medical imaging system that provides cross-sectional, real-time margin visualization of excised tissue specimens. It uses ultra-high-resolution OCT technology, developed out of MIT in 1991, an established imaging technology used in ophthalmology, cardiology and dermatology. Analogous to ultrasound images, OCT uses light waves instead of sound waves, and is now being applied in a novel way for intraoperative margin visualization. Cleared by the FDA, the Perimeter S-Series system provides cross-sectional images of tissues down to 2mm depth, with 10x higher image resolution than standard x-ray and ultrasound, and 100x greater than MRI. Perimeter is developing its proprietary, next-gen “ImgAssist” artificial intelligence technology under the ATLAS AI project, made possible, in part, by a $7.4 million grant awarded by the Cancer Prevention and Research Institute of Texas (CPRIT). FDA granted Breakthrough Device Designation for Perimeter B-Series OCT coupled with ImgAssist AI. A randomized, multi-site, pivotal study is underway to evaluate this technology against the current standard of care and assess the impact on re-operation rates for patients undergoing breast conservation surgery.

After a lumpectomy, the wait begins. This time, your team is waiting on pathology results, to confirm that all the cance...
09/04/2026

After a lumpectomy, the wait begins. This time, your team is waiting on pathology results, to confirm that all the cancer was removed with clean margins and to determine the next steps in your treatment.

The margin is the rim of healthy tissue removed around the tumor. For breast cancers it needs to be about 2mm, roughly the thickness of a nickel. If cancer cells reach the edge of what was taken out, the margin is called positive. Clean margins are linked to better outcomes and lower recurrence. That pathology report typically takes 2 to 7 days.

Perimeter’s Claire images breast tissue that was just removed right in the operating room, and is designed to help your surgeon see intricate details along the breast cancer margins while you are still in surgery.

Claire gives your surgeon more information about the tissue to support more informed decisions.

We’ve put together a list of suggested questions you can take with you to your appointment with a breast surgeon. Head over to our patient page to learn more about margins and to get a copy of the list for yourself.

The link and important safety information are in our bio.

Note: The Claire OCT System is an adjunctive tool; it does not replace standard tissue histopathology nor provide a diagnosis. Claire is not available for sale outside the USA.

When Perimeter brought cellular-level tissue visualization into the operating room using Optical Coherence Tomography (O...
09/03/2026

When Perimeter brought cellular-level tissue visualization into the operating room using Optical Coherence Tomography (OCT) imaging technology, it changed what surgeons could see, supporting real-time decision-making.

So why build an AI layer on top of a powerful imaging technology?

Swipe through the carousel to explore the strategic engineering logic behind combining high-definition OCT hardware with ImgAssist AI—and how we turned massive volumes of data into a point-of-care decision-aid.

Follow along to learn how this AI layer was designed specifically to support breast cancer surgeons; acting as a ‘second set of eyes' for intraoperative margin assessment.

Note: The Claire OCT System is an adjunctive tool; it does not replace standard tissue histopathology nor provide a diagnosis.

One flagged margin. One surgery. No re-excision.Dr. Marie Lee used Claire™ OCT+AI during a lumpectomy for a patient who ...
09/02/2026

One flagged margin. One surgery. No re-excision.

Dr. Marie Lee used Claire™ OCT+AI during a lumpectomy for a patient who had diagnosed DCIS in her right breast. Standard-of-care margin assessment looked clear, but Claire’s AI flagged an additional region of interest on the anterior margin, prompting Dr. Lee to take a closer look.

Swipe through to see the imaging, the decision points, and the outcome →

Moffitt Cancer Center

See the full case study: perimetermed.com/scientific-exchange

Small question. Big clarity.Understanding margins can help you feel more prepared as you talk through your surgery, next...
08/28/2026

Small question. Big clarity.

Understanding margins can help you feel more prepared as you talk through your surgery, next steps, and what your care team is looking for.

For more questions and information check out Perimeter’s patient page (link in bio)

Earlier this month, Emily Campbell, our Director of Regulatory Affairs & Quality Assurance, joined Marcus Evans Group fo...
08/28/2026

Earlier this month, Emily Campbell, our Director of Regulatory Affairs & Quality Assurance, joined Marcus Evans Group for the Medical Device Safety Monitoring and Reporting conference (14th Edition) in San Diego to talk about postmarket surveillance for AI-enabled medical devices using the Claire OCT System as a case study.

Claire is one of a small number of AI-enabled devices to receive FDA Premarket Approval (PMA), and the first FDA-approved AI-enabled imaging device for intraoperative breast cancer margin assessment. In Perimeter’s pivotal clinical trial, adjunctive use of Claire alongside standard-of-care intraoperative margin assessment was associated with a 20% relative reduction in unaddressed positive margins (evaluated after completion of standard of care; see NCT05113927 for study design and full results).

Emily’s session covered how novel AI devices like Claire require postmarket monitoring strategies built for their specific conditions — including AI performance monitoring, cybersecurity, and long-term data strategy — not a one-size-fits-all approach.

Great conversations throughout the two days with fellow speakers and attendees tackling similar challenges across the industry, including Annam Quraishi (Intuitive Surgical), Ian Hooley (Zimmer Biomet), Alexandra Williamson (Neuronetics), Satish Amancharla (Inspire Medical Systems), and many others working to advance safety monitoring practices industry-wide.

Note: Claire OCT System is an adjunctive tool intended for use in conjunction with other standard methods for evaluation of the margins of excised lumpectomy tissue in patients with a biopsy-confirmed diagnosis of breast cancer. Claire does not replace standard tissue histopathology assessment and is not intended for diagnosis.
For more information, refer to clinicaltrials.gov/study/NCT05113927.

Celebrating our interns! 🎉From contributing to projects and sharing new ideas to learning more about medical imaging and...
08/27/2026

Celebrating our interns! 🎉

From contributing to projects and sharing new ideas to learning more about medical imaging and innovation, each intern brought a unique perspective and energy to the team.

We asked them to reflect on their experience at Perimeter, what they’ll carry forward into their future endeavors, and their favorite memories working at Perimeter. 💙

Thank you, Farnaz, Felix (Felix Ryans), Rui Qi, and Martina (martinaweisenblum), for being part of the Perimeter community. We wish you all the best in what’s ahead!

Designed for the moment decisions are made.Meet Claire OCT: Perimeter’s FDA-approved, AI-enabled imaging system designed...
08/25/2026

Designed for the moment decisions are made.

Meet Claire OCT: Perimeter’s FDA-approved, AI-enabled imaging system designed to support surgeons during breast cancer surgery.

In a pivotal clinical trial, Claire was shown to reduce positive residual margins, which could potentially reduce re-excision rates and subsequent delays for adjuvant therapies.

Swipe to see what else Claire showed in its pivotal clinical trial.

For more details on the study design, visit: https://clinicaltrials.gov/study/NCT05113927

Important Patient Information & Disclaimers: The Claire OCT System is a tool used during surgery alongside a doctor’s standard methods to look at breast tissue margins; it does not replace standard lab pathology tests or provide medical diagnosis. ImgAssist AI serves as a screening tool to highlight suspicious areas for the surgeon’s review.

Limitations: Claire has not been evaluated for individuals who are under 18, male, pregnant, lactating, have Stage IV metastatic cancer, or have lobular carcinoma as their primary diagnosis.

Note: The efficacy of Claire was evaluated only after completion of standard of care (SOC). For more information, refer to https://clinicaltrials.gov/study/NCT05113927

We’d like to help you walk into your next appointment with your surgeon feeling prepared.On our patient information page...
08/24/2026

We’d like to help you walk into your next appointment with your surgeon feeling prepared.

On our patient information page, we have a printable list of example questions you can bring to your next appointment.

Head over to our patient page (link in bio) to get a copy.

We’d love to hear from you— share your suggestions down below!

A year ago, Dr. Jennifer Tittensor (Jennifer Tittensor) brought Perimeter’s OCT into her OR. Now she’s added Claire’s AI...
08/24/2026

A year ago, Dr. Jennifer Tittensor (Jennifer Tittensor) brought Perimeter’s OCT into her OR. Now she’s added Claire’s AI.

The OCT platform gave her real-time tissue visualization, supporting more informed surgical decisions during procedures. She’s among the first to take that experience a step further with Claire’s AI, which identifies and marks focal areas suspicious for breast cancer and is used concurrently with physician interpretation of the images.

Claire’s AI acts as a second set of trained eyes, flagging areas of concern at the cellular level, while the patient is still in surgery.

We’re proud to support Dr. Tittensor and her team at Intermountain Health as they bring this technology to their breast cancer patients.

Note: ImgAssist AI does not itself diagnose a margin as positive or negative. The Claire OCT system is designed as a human-AI team, where the AI acts as a screening tool and the surgeon provides clinical judgment.

Today, on Surgical Oncologist Day, we recognize the challenges breast surgeons face in every operation.Every surgery req...
08/22/2026

Today, on Surgical Oncologist Day, we recognize the challenges breast surgeons face in every operation.

Every surgery requires a precise balance: removing the cancer, getting clear margins, prioritizing cosmesis, all while working with information that may not give the full picture in real time.

That’s the work, procedure after procedure. It’s why we’re celebrating the surgeons we’ve had the privilege to work with, and the conversations about what it actually takes to improve outcomes for patients navigating breast cancer.

We’ve built Claire to help close that information gap. But the real work still happens because of surgeons who show up, committed to their patients’ outcomes, every time.

To every surgical oncologist we’ve met on the show floor, in the OR, or over a conversation about the future of cancer care: thank you. Your precision and your persistence are the reason this field keeps moving forward.

Learn more about Claire → link in bio

Address

8585 N. Stemmons Freeway, Suite 106N
Dallas, TX
75247

Opening Hours

Monday 8:30am - 5:30pm
Tuesday 8:30am - 5:30pm
Wednesday 8:30am - 5:30pm
Thursday 8:30am - 5:30pm
Friday 8:30am - 5:30pm

Website

Alerts

Be the first to know and let us send you an email when Perimeter Medical Imaging AI posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Perimeter Medical Imaging AI:

Shortcuts

Share

Category