In-Office CT Scan

Get a blueprint of your nasal anatomy

Patient sitting in an ADVENT in-office CT scan

You deserve to breathe freely. If you can’t breathe well through your nose, there’s a reason. Something is blocking your ability to breathe deeply in and out of your nose. You don’t have to accept a life of mouth breathing, never-ending sinus problems, congestion, snoring, or sleep disorders…because almost every ADVENT clinic has its own CT Scanner. Our CT Scanners are specially designed to take detailed pictures of your nasal anatomy, revealing the root cause of your Breathing Triangle issues.

Simply Reveal Your Breathing Triangle® Issues

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How does the in-office CT scan work?

We make getting a CT scan quick and painless because it’s a crucial step in unlocking the root cause of your issue. The scan allows us to create a blueprint of your anatomy by taking snapshots of the inside of your nose and sinuses. Here’s what to expect at this visit:

  • The open CT scanner takes in only 22 seconds as you sit comfortably in a chair
  • Receive 94% less radiation than conventional scanners
  • Review your results with a Medical Provider at the same appointment
  • Discuss treatment options to determine the best plan for you

Why choose ADVENT?

Millions needlessly suffer from breathing or sleep issues because they don’t realize that the root of their problem lies in The Breathing Triangle®: the two sides of their nose and throat. It’s why we’ve pioneered a simple proven process to give you relief in three easy steps:

  1. Calendar and scheduling icon with checkmark on date

    1: Discover the Root Cause

    Uncover the source of your issues with a Breathing Triangle Evaluation, CT Scan, and Home Sleep Study (if needed)

  2. Icon for Get your breathing triangle healthy

    2: Get Your Breathing Triangle® Healthy

    Optimize your nasal breathing and airway with proven in-office Breathing Triangle solutions. If sleep apnea is a concern, you may continue treatment to keep your throat open while you sleep.

  3. Icon for unlock your potential

    3: Unlock Your Potential

    Enjoy more energy, restful sleep, and better quality of life because you can breathe freely – through your nose 24/7, not your mouth.

The simple truth:

OSA Undiagnosed: 80% OSA undiagnosed
IOBS Work Time: 6.5% to >1% reduction in work loss due to sinusitis
Nasal Obstruction: 20M suffer w/ nasal obstruction
92% of ADVENT patients left a 4- or 5-star review on Google
Net Promoter: ADVENT has +84 NPS score



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Knowledgeable competent staff “top to bottom.” I highly recommend ADVENT over another local “pulmonary clinic” that I had been refer to for my sleep apnea (....that “Pulmonary Clinic” simply wanted to provide me with a CPAP machine without fully evaluating me nor offering any explanation or opportunity for discussion/asking questions).
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Dr. Adams was great. He listened to me, didn't dismiss my concerns & explained everything to me…the first ENT made me feel like I was crazy by saying my nose was fine.
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I’ve had longtime problems with allergies, sinuses, breathing/respiratory issues…Everything is in one place (assessments, allergy testing, CT scans, procedures)...They are very knowledgeable to deal specifically with these issues. The setup and methods are modern and efficient. I can even do a sleep study at home with a simple device connected through a phone app. It is amazing that such a clinic like this exists!
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I had been told by two doctors that my “anatomy” was a problem and that I’d always have sleep apnea and need a CPAP. I just got back from my CT scan and appointment at the Northbrook location. All of the staff who helped me were great and the doctor was beyond helpful. He advised I have to options to improve my breathing and sleep and took time to walk me through both while giving me an anatomy visual aid as well as showing me my own CT.