We are the industry leaders in breast thermal imaging interpretation, with over 47 years experience and over one millions scans analyzed.

Pain Free

Radiation Free

Radiation Free


Our breast health thermology scan ensures a painless experience and absolutely no compression of your breasts

Radiation Free

Radiation Free

Radiation Free


With all the concerns about radiation, you will feel safe knowing that our screening process is completely radiation free


Radiation Free

Clinical Evidence


Easy to schedule appointments via phone. Our thermology screening takes less than 5 minutes. The entire appointment takes less than 30 minutes

Clinical Evidence

Clinical Evidence

Clinical Evidence


Over 800 peer reviewed studies of over 300,000 women show Thermology helps improve chances of early breast cancer detection

Peace of Mind

Clinical Evidence

Peace of Mind


By allowing you to proactively take charge of your breast care health through thermology, we’ve taken the stress and anxiety out of the traditional breast screening process 


About Us

  • Therma-Scan™ Reference Laboratory LLC  is dedicated to saving lives by improving breast screening rates through compression-free, pain free, radiation free, state of the art breast thermology scans.
  • We own and operate the largest and most accredited thermology reference lab in the world, led by Dr. Phil Hoekstra, PhD, DABT, our Lab Director and founder of our Therma-Scan Lab.
  • Thermology is an ideal tool for women of all ages.  
    • Dense or fibrocystic breasts
    • Implants
    • Breast reduction or reconstruction
    • A lumpectomy or mastectomy
    • Pregnant or nursing
  • Our goal is to ensure that every woman has access to affordable, non-invasive risk assessment.

Preparing For A Study

Thermology is an evaluation of the levels, patterns and behavior of the skin's temperature.  To achieve a meaningful evaluation, you should avoid conditions that would cause adverse influences.  When you make your appointment, we will send a message to your personal email with a link to our laboratory’s on-line patient history.

*Please use the emailed link and complete your on-line patient history prior to your appointment

**Please  follow these preparation instructions for your breast thermology study

Medical Procedures

  • You must wait at least three (3) months after breast surgery, including any biopsies, the completion of chemotherapy or radiation before a thermology examination. 
  • You must not have had any fever within thirty-six (36) hours of the examination.
  • You must avoid ultrasound or mammogram or clinical physical examination of the breasts for at least three (3) days prior to the examination.

Activities to Avoid

  • You are asked to avoid any natural or artificial tanning of your chest for two-three (2-3) days prior to the study date.
  • You should refrain from hot yoga, sauna, steam-room or hot/cold packs in contact with the breasts for at least twenty-four (24) hours. 
  • You are asked to refrain from exercise, bathing or showering for one hour prior to examination.

Medications, Tobacco and Nicotine Use

  • With your doctor's permission: Avoid use of the following medications for twelve (12) hours prior to the examination:                    
    • Nitroglycerin
    • Niacin, Niacin Patch (500 milligrams or more)
    • Any Migraine Medications 
  • You are asked to refrain from any tobacco use two (2) hours prior to the examination.
  • If you currently are using a nicotine patch or any gum containing nicotine please call our office for further instructions.

Clothing and Personal Care 

  • There should be no bruising, rashes or skin irritation in the breast area on the day of the study. 
  • Please refrain from using deodorants, creams, powders or lotions that may cause an inflammation in the breast area on the day of the study.
  • If you are breastfeeding, please empty the breasts 30-60 minutes before the appointment.
  • For your comfort, we recommend that you wear a pullover or button-down shirt.

Food, Drink and Environmental

  • If you are exposed to outside environmental extremes, such as very cold or warm temperatures, you will  be asked to acclimate in comfortable room temperature for approximately fifteen-twenty (15-20) minutes prior to the equilibration process.
  • Please refrain from bringing any beverages with you on the date of your appointment.
  • Please refrain from the consumption of caffeinated coffee, tea or any other caffeinated products for two (2)  hours prior to the examination.

This may seem like a lengthy list of conditions to avoid.  However, we have determined that each of them has the  potential to decrease the reliability of your study.  Please contact us to reschedule your appointment if you have compromised any of these conditions.  We would rather reschedule you to another appointment date than redo your study.  

If you haven’t received our message to your e-mail after you have made your appointment or you have questions not covered here, please contact our office at (602) 603-0749.  

**Please complete your on-line patient history prior to your appointment**