Cardiac MRI: What You Need to Know

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MRI heart or Cardiac MRI ( magnetic resonance imaging ) of heart compare RVOT and LVOT for diagnosis heart disease.

Cardiac magnetic resonance imaging (MRI) is a technology often promoted as the “gold standard” for looking at the structure and function of the heart. Hospitals and cardiology practices recommend it to visualize the chambers, valves, muscle, and blood flow of the heart without radiation exposure. But is this test truly necessary—or even helpful—for your long-term heart health? Let’s take a closer look.

What Is a Cardiac MRI?

A cardiac MRI uses powerful magnets and radio waves to create detailed images of the heart. Doctors may order it to:

  • Evaluate the size and function of the heart chambers.
  • Assess scar tissue or damage from a prior heart attack.
  • Look for inflammation or rare structural abnormalities.
  • Detect certain congenital heart problems.

The test typically takes 30–90 minutes. In many cases, patients are also injected with a contrast dye called gadolinium to enhance the images.

Cardiac MRI has become popular because it produces highly detailed pictures that other imaging methods—like echocardiograms or stress tests—may not provide. Conventional cardiologists often see it as the “next step” if there’s concern about scarring, fibrosis, or an unclear diagnosis from other imaging.

But here’s the reality: the results of a cardiac MRI rarely change the treatment plan. Whether it shows normal tissue or areas of damage, mainstream medicine typically responds with the same approach—more pharmaceuticals or invasive procedures.

At Natural Heart Doctor, our philosophy is different. We know that true heart healing does not come from chasing images but from addressing root causes. The 100 Year Heart Method focuses on Thrival Nutrition, Thrival Lifestyle, and Thrival Mindset—backed by advanced blood, urine, and functional testing—to guide a healing plan that works naturally.

The Risks of Cardiac MRI

While MRIs don’t use ionizing radiation like CT scans, that doesn’t mean they’re risk-free. The main concerns include:

1. Gadolinium Contrast Exposure

  • Most cardiac MRIs require injection of gadolinium-based contrast agents (GBCAs).
  • Gadolinium is a heavy metal that the body cannot naturally use. In many patients, it is not fully eliminated and instead accumulates in tissues such as the brain, kidneys, bones, and skin.
  • Repeated exposure has been linked to a painful condition called gadolinium deposition disease and potential long-term neurological effects.
  • Even the FDA has issued warnings about gadolinium retention.

2. Unnecessary Medicalization

  • Once you enter the cycle of advanced imaging, it often leads to more testing, more procedures, and more worry—without improving outcomes.
  • A cardiac MRI, like a coronary CT or calcium scan, can set off a cascade of interventions that do not extend life or prevent heart attacks.

3. False Reassurance or Anxiety

  • A “normal” cardiac MRI does not mean you are safe from heart disease if lifestyle and environmental factors are not addressed.
  • On the other hand, being told you have “scarring” or “fibrosis” can create anxiety—even if that information does not change your care plan or your long-term health.

Why We Believe This Test Is Useless

Just as with coronary CT scans, we believe cardiac MRI does not meaningfully contribute to your heart health journey. At Natural Heart Doctor, we will never base your care on pictures alone. Instead, we base your plan on:

  • The most advanced laboratory testing in the world (blood, urine, stool, and environmental toxin tests).
  • Evidence-based supplements targeted to your personal needs.
  • Lifestyle strategies—nutrition, sunshine, sleep, movement, and mindset—that transform heart health naturally.

No picture, no matter how detailed, replaces addressing the root cause.

The Better Way Forward

If you’ve been told you need a cardiac MRI, ask yourself:

  • Will the results change my plan?
  • Is the risk of gadolinium exposure worth it?
  • Or would my health improve more by investing time, energy, and resources into lifestyle, testing, and natural solutions?

At Natural Heart Doctor, we guide people to true heart healing without pharmaceuticals, without unnecessary scans, and without fear.

✅ Takeaway: A cardiac MRI may look impressive, but it won’t change your health outcomes. Instead, trust in advanced root-cause testing, natural solutions, and the proven framework of the 100 Year Heart Method.

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About Dr. Keith Smigiel NP, DC

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Dr. Keith Smigiel is a regenerative medicine physician and pain management specialist. He takes an integrative approach to medicine, focusing on customized solutions tailored to individual needs. Using advanced, non-surgical treatments, Dr. Smigiel stimulates your body’s ability to naturally heal itself.

Dr. Smigiel helps people suffering from conditions such as chronic pain and erectile dysfunction, to hair loss and weight gain. Combining treatments such as PRP Therapy, Ozone, Neural Prolotherapy, and IV Infusions with functional rehabilitation, he helps you look and feel better.

He heals the body, instead of just treating the symptoms!

With his professional qualifications as a certified family nurse practitioner, a doctor of chiropractic, and a fellow of the International Academy of Medical Acupuncture, Dr. Smigiel offers patients comprehensive care from a broad perspective of conventional and alternative medicine. He also has extensive experience in functional rehabilitation and chronic pain management.

Dr. Smigiel is married to Angela and has two children, Sophia and Larz. When he’s not busy helping patients, he enjoys hiking, mountain biking, motocross, and boating.

About Dr. Lauren Lattanza NMD, FACC

Dr. Lattanza Office Visit with Patient

As a Naturopathic Physician, I am trained to treat the whole person and get to the root cause of disease.

I went to Arizona State University where I graduated with a bachelor’s degree in psychology with a depth in physiology and minor in Spanish. After my undergraduate degree I was working on prerequisite classes towards medical school, which is when I came to learn that my values identified best with the principles of naturopathic medicine. I knew that I wanted to help patients identify the causes of disease and be able to offer treatments which would improve their health rather than simply treating symptoms.

I dedicated the next 4 years to the Southwest College of Naturopathic Medicine in Tempe, Arizona where I attained my Doctorate of Naturopathic Medicine. I served as Class President all 4 years, Board of Trustees – Student Trustee, spoke as the Club President for our branch of Toastmasters, and was voted by my peers and attending physicians to earn the Outstanding Leadership Award for the Class of 2020. Throughout medical school I took it upon myself to work alongside MDs, DOs, chiropractors, and functional medicine practitioners in addition to naturopathic physicians.

As a Spanish speaking student, I was able to volunteer with community clinics around Phoenix and provide free healthcare to low-income families. Due to this combined exposure, I came to find my passion in treating cardiometabolic and digestive disorders that are all too common, yet largely preventable. I took the opportunity to learn the broad spectrum of healthcare so I can ensure that I am able to provide my patients with the best options.

About Dr. Jack Wolfson DO, FACC

Dr. Wolfson Office Visit with Patient

Dr. Jack Wolfson is a cardiologist, Amazon best-selling author, husband, father, and the nation’s #1 Natural Heart Doctor.

For more than two decades, more than one million people have enjoyed the warmth, compassion, and transformational power of his natural heart health courses and events.

Dr. Wolfson is the founder of Natural Heart Doctor Scottsdale, his heart health practice in Arizona, and Natural Heart Doctor, an online resource center with natural health information. Doctors from across the globe reach out to Dr. Wolfson for training and education in holistic health practices.

He has been named one of America’s Top Functional Medicine Doctors and is a five-time winner of the Natural Choice Awards as a holistic M.D. Dr. Wolfson’s work has been covered by more than 100 media outlets, including NBC, CNN, and the Washington Post. His book “The Paleo Cardiologist: The Natural Way to Heart Health” was an Amazon #1 best-seller.

Dr. Wolfson and his wife Heather have four children and are committed to making the world a better place to live. They provide for those in need (including animals) and support natural health causes through their philanthropic efforts.

Chiropractic

Our chiropractor is an expert at adjustments and holistic chiropractic care and works closely in conjunction with the other health care experts at Natural Heart Doctor.

Call (480) 535-6844 for details and scheduling.

IV Therapy

We use specially formulated natural vitamins and minerals that are injected into a vein to prevent or treat dehydration. Ideal for people in Arizona.

Call (480) 535-6844 for details and scheduling.

Acupuncture

Stimulate your body’s natural healing abilities and promote physical and emotional well-being with acupuncture at Natural Heart Doctor.

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Health Coaching

Our health coaches use evidence based skillful conversation, clinical interventions, and strategies to engage you actively and safely in health behavior changes.

Call (480) 535-6844 for details and scheduling.

Cardio Tests

We use the most advanced testing in the world to assess heart health and to identify the root cause of your health issues.

Call (480) 535-6844 for details and scheduling.

Office Visits

Schedule an office visit with one of our cardiologists, holistic physicians, chiropractor, or health coaches.

Call (480) 535-6844 for details and scheduling.

Frequently Asked Questions

I’d like to receive an online second opinion from Natural Heart Doctor. What do I do next?

You can initiate a second opinion online through our website at any time. To begin, select the team member you’d like to speak with and open an account.

Click here for cardiologist Dr. Jack Wolfson.

Naturopathic Medical Doctor Dr. Lauren Lattanza. Get details.

Naturopathic Medical Doctor Dr. Tonia Rainier. Get details.

Click here for  Natural Heart Doctor Health Coach.

Alternatively, you can email health@naturalheartdoctor.com. A member of our care team will help guide you through the process of starting a second opinion.

What is the cost of a Natural Heart Doctor Online Second Opinion?

The cost for most second opinions varies by team member. This fee includes information collection, a phone or video consultation, a second opinion from a Natural Heart Doctor specialist and guidance throughout the process from your personal Care Team at Natural Heart Doctor.

Cardiologist Dr. Jack Wolfson’s Second Opinion Fee is $1500.

Holistic Physician’s Dr. Lauren Lattanza’s Second Opinion Fee is $250.

Naturopathic Physician Dr. Tonia Rainier’s Second Opinion Fee is $250.

Note: We apply the Online Second Opinion Call fee as a credit to any future consultations with Natural Heart Doctor, should you choose them.

Will my insurance cover the cost of a Natural Heart Doctor Online Second Opinion?

Most likely, no. Most health plans do not cover online second opinions or consultations. You are responsible for the cost of our second opinion. Natural Heart Doctor cannot file a claim with your insurance carrier, nor can we provide a procedure (CPT) code for this service.

What is the timeline to receive an online second opinion?

We do our best to schedule your second opinion as quickly as possible. Typically, it takes 5 to 7 business days after your information has been collected to receive your phone or video online second opinion.

What information do you need in advance of our call?

Our office will send you a short questionnaire to complete and return. We DO NOT need your complete medical records.

How many questions can I ask the expert during our call?

You may ask a maximum of five questions. This is to ensure that the expert has sufficient time to devote to each question. All questions must be finalized before your online meeting.

What should I expect to receive once my second opinion is complete?

You will receive a summary of our discussion along with our second opinion. The second opinion will be in written form. After you have reviewed the second opinion, a Natural Heart Doctor clinician will follow up with you by phone to address general medical questions about the information provided in the second opinion.

What if I have follow-up questions for the expert after I have reviewed my second opinion?

If you have a clarifying question about an expert’s response to one of the questions in your second opinion, and the Natural Heart Doctor clinician is unable to address it, then you may request a follow up session for an additional fee. 

Is my medical and payment information secure?

Natural Heart Doctor is strongly committed to protecting the privacy and security of all our patients. Our website meets all federal requirements for protecting personal health information under the Health Insurance Portability and Accountability Act (HIPAA). All financial transactions are processed by Natural Heart Doctor securely using industry standard payment processing tools.

I would rather visit Natural Heart Doctor for an in-person appointment. What should I do next?

If you would prefer an in-person appointment at Natural Heart Doctor instead of an online second opinion, please call (480) 535-6844 for details and scheduling.

Can I schedule a follow up appointment with the specialist who provided my online second opinion?

Yes, we’re happy to help you on an extended basis. Our clinician can discuss options with you when presenting our second opinion summary.