By Dr. Tamara Zach MD — May 05, 2026
understanding when a brain MRI is right for your child
Hearing your child's doctor recommend a brain MRI sets off a specific kind of panic. Is something seriously wrong? Does my child really need this? What will the scan show? At Rose Medical Pavilion in Phoenix, Dr. Tamara Zach MD answers these questions with families every day, replacing fear with a clear plan.
Most children who get a brain MRI don't have a life-threatening condition. The scan is a precision tool. It lets a neurologist see brain structure, tissue, and development in detail that no physical exam can reveal. Knowing when the tool fits the situation helps Arizona families feel informed instead of overwhelmed when the recommendation arrives.
what a pediatric brain MRI actually is
MRI uses powerful magnets and radio waves to create detailed images of the brain and surrounding structures. There's no radiation involved. A CT scan delivers ionizing radiation; an MRI doesn't, which is why it's the preferred choice for children whenever an evaluation isn't an emergency.
In Arizona, a pediatric brain MRI usually happens at a children's hospital or a specialized imaging center. Younger children, or kids who get anxious, may need sedation or general anesthesia to stay still enough for diagnostic-quality images. Dr. Zach works with imaging teams to keep the process calm for children and parents alike.
why a child neurologist might order one
Not every neurological concern calls for imaging. Many conditions, including some types of pediatric epilepsy, can be evaluated and managed without an MRI when the clinical picture and other testing are clear. But certain situations make a brain MRI a necessary step.
Seizures and Epilepsy
A first-time unprovoked seizure is one of the most frequent reasons a neurologist orders a brain MRI. Imaging rules out structural causes like cortical dysplasia, tumors, or vascular malformations. When a child's pediatric seizures resist medication, or when the seizure type changes, an MRI can reshape the entire treatment approach. It's often ordered alongside a pediatric EEG to show brain activity and structure together.
Severe, Frequent, or Unusual Headaches
Most childhood headaches don't need imaging. Some patterns do. Headaches that wake a child from sleep, get steadily worse over days or weeks, come with vomiting unrelated to illness, or arrive alongside vision changes, balance problems, or personality shifts all warrant a closer look. For Phoenix-area children with these symptoms, Dr. Zach decides whether imaging belongs in the workup for pediatric headaches and migraines.
Developmental Delays and Regression
When a child loses skills they already had, like speaking, walking, or interacting socially, that's developmental regression, and it always gets taken seriously. Global delays that genetic testing and clinical history can't explain may also call for a brain MRI to check for structural or metabolic causes. Families enrolled in the Arizona Early Intervention Program (AzEIP) may already be mid-evaluation when a neurologist identifies the need for imaging.
Head Trauma and Concussion
Routine concussions usually don't require a brain MRI. Prolonged or severe symptoms, or neurological warning signs, change that. A child with post-concussion syndrome lasting beyond three or four weeks, persistent cognitive fog or coordination trouble, or a second serious head injury may benefit from imaging. Dr. Zach folds those decisions into pediatric concussion care.
Suspected Brain Tumors or Abnormal Head Growth
A rapidly growing head circumference in an infant, a bulging fontanelle, or symptoms like unexplained vomiting, visual disturbances, and declining school performance can point to increased pressure inside the skull. These cases are rare, but they need prompt evaluation and imaging.
when an MRI usually isn't necessary
Good neurological care also means knowing when to skip the test. For many children, a careful clinical evaluation does the job. A brain MRI generally isn't called for with:
- Simple febrile seizures in otherwise healthy toddlers
- Well-characterized childhood migraine with a normal neurological exam
- Attention difficulties or learning differences without other neurological signs
- Mild concussion that clears up quickly
- Routine developmental monitoring without regression or significant delay
Skipping unnecessary imaging spares children the risks of sedation and saves families money, including those covered under AHCCCS, Arizona's Medicaid program, where prior authorization requirements make careful ordering matter even more.
what the evaluation looks like in Phoenix
If your child is referred to Rose Medical Pavilion, Dr. Tamara Zach MD takes a full neurological history and does a physical exam before recommending any imaging. That visit-first approach means a brain MRI gets ordered only when it will actually change or confirm a diagnosis and treatment plan.
Arizona summers add a logistical wrinkle: keeping kids comfortable and calm during a medical visit when it's over 110°F outside takes some planning, and our team handles it. We work to keep every visit low-stress, from flexible scheduling to clear pre-appointment instructions for families driving in from across the Valley or from rural communities.
working with your child's neurologist
A brain MRI is one piece of a larger diagnostic conversation, not the whole thing. Every evaluation at Rose Medical Pavilion aims to give your family answers, direction, and confidence in the care plan. Dr. Zach explains what imaging shows, what it doesn't, and what the results mean for your child specifically.
If you're worried about your child's neurological health and want to know whether a brain MRI or another evaluation makes sense, schedule a consultation at Rose Medical Pavilion. Our team helps Phoenix-area families work through these questions with care.
Schedule an Appointment
Questions about your child's neurological health? Dr. Tamara Zach MD at Rose Medical Pavilion is here to help. Call (623) 257-ROSE (7673) or schedule online.