Questions to Ask a Radiologist About Your Scan
Questions for the doctor who reads your images, covering scan choice and preparation, contrast and radiation dose, hedged report language, incidental findings, and who owns a recommended follow-up interval.
The questions
Open any question for the note
Which scan am I having today, and why did my doctor choose this one instead of another?
Why ask it
Ultrasound, CT and MRI answer different questions, and the choice is often driven by cost, availability or habit rather than the best look at your problem. Hearing the reasoning tells you whether the study can actually answer what you are worried about.
What do I need to do to prepare, and how early should I arrive?
Why ask it
Prep varies wildly: fasting for an abdominal CT, a full bladder for a pelvic ultrasound, holding metformin or a diuretic, drinking oral contrast an hour ahead. Getting this wrong is the most common reason a scan gets repeated.
How long will I be in the scanner, and how much of that time do I need to hold completely still or hold my breath?
Why ask it
A five minute wrist X-ray and a 45 minute cardiac MRI are very different experiences, and motion is the leading cause of unreadable images. Knowing the breath-hold pattern in advance lets you practice instead of panicking mid-sequence.
Will I be given contrast, how is it given, and what will it feel like?
Why ask it
IV iodinated contrast often causes a warm flush and a metallic taste or the sensation of having wet yourself, all of which are normal and alarming if nobody warns you. Gadolinium for MRI feels like almost nothing, so mismatched expectations cause needless fear.
Does this study use ionizing radiation, and how does the dose compare to scans I have already had?
Why ask it
MRI and ultrasound use none, a chest X-ray is trivial, and a multiphase abdominal CT is orders of magnitude higher. Radiologists can often reduce dose or use a low-dose protocol if you raise it, especially for children and for repeat surveillance scans.
Is there anything in my history you need to know before we start: implants, metal, pacemaker, tattoos, pregnancy, kidney function, or a prior contrast reaction?
Why ask it
This is the safety checklist, and volunteering it beats waiting to be asked. Older aneurysm clips and non-conditional pacemakers can be MRI hazards, poor kidney function changes contrast decisions, and a previous reaction usually means premedication rather than cancellation.
I get anxious in enclosed spaces. What are my options?
Why ask it
There is usually more on offer than patients realize: wide-bore or open MRI, feet-first positioning, a mirror or prism glasses, headphones and your own music, a companion in the room, or an oral anxiolytic arranged in advance. Asking the day before is far more useful than asking on the table.
Who will actually read my images, and will they be a subspecialist in this part of the body?
Why ask it
Musculoskeletal, neuro, breast and abdominal imaging are distinct subspecialties, and subspecialist reads catch findings general reads miss. If your case is unusual, you can sometimes ask for it to be routed to the right reader before it is signed.
Do you have my prior imaging to compare against, and should I get older scans sent over?
Why ask it
Comparison does more work than almost anything else in radiology: a nodule that has not changed in three years means something completely different from a new one. Priors from another health system rarely arrive automatically, so you may need to request the transfer yourself, days ahead.
When will the report reach my doctor, and when will I be able to read it myself?
Why ask it
In the US, reports are typically released to your portal as soon as they are signed, often before your doctor has seen them. Knowing the timeline lets you decide whether to open it alone on a Friday night or wait for the call.
Can you tell me anything about what you are seeing now, or do I need to wait for my referring doctor?
Why ask it
Some radiologists will talk you through images at the console, particularly in breast imaging, ultrasound and interventional radiology. Others are contractually or ethically bound to report only to the ordering clinician, and asking plainly saves you from reading silence as bad news.
Can you walk me through the main finding in plain language, and tell me what a normal result would look like here?
Why ask it
Reports are written for clinicians, not patients, so terms like hypodense, attenuation and signal hyperintensity carry no meaning for you. Hearing what normal looks like gives you the baseline you need to judge how far off yours is.
Were there any incidental findings unrelated to the reason I was scanned?
Why ask it
Scans routinely turn up thyroid nodules, kidney cysts, small hernias and adrenal lesions that have nothing to do with your symptoms. Most are harmless, but they sit in the report, and understanding which ones need attention prevents both panic and a missed problem.
The report says the finding is indeterminate or cannot be excluded. What would push you toward concerned or reassured?
Why ask it
Hedged language is honest uncertainty, not a coded warning, and radiologists can usually name the specific features they are weighing: size, margins, growth rate, enhancement pattern. That turns an ominous phrase into a concrete list of things to track.
What are the technical limits of this study, and could part of the area have been hidden from view?
Why ask it
Every study has blind spots: bowel gas obscuring an ultrasound, motion degrading an MRI, body habitus limiting penetration, a non-contrast scan that cannot characterize a lesion. Knowing the limits tells you whether a normal result is genuinely reassuring.
Does anything here need follow-up imaging, at what interval, and who is responsible for scheduling it?
Why ask it
Recommendations like repeat in six months are the most commonly dropped item in all of medicine, because responsibility falls between the radiologist and the referring doctor. Pinning the interval and the owner to a name protects you from a two year gap.
Would a different type of scan answer this question better, and is another scan genuinely necessary?
Why ask it
Radiologists are the best-placed people to say that an MRI would settle what a CT left ambiguous, or that the next scan adds nothing but cost and radiation. They see the downstream cascade of imaging that other specialists rarely track.
Would a tissue sample change what happens next, and if so, what kind and who performs it?
Why ask it
Imaging can raise a question that only pathology can close, and many biopsies are done by interventional radiologists under image guidance rather than by a surgeon. Understanding this early prevents an unnecessary referral loop.
If this were your own scan, would you want a second read, and how would I request one?
Why ask it
Second-opinion reads change management in a real minority of complex cancer and musculoskeletal cases, and most academic centers offer them formally. Framing it as what would you do makes it a professional judgment rather than a challenge to their competence.
How do I get a copy of my actual images, not just the report, to keep or take to another doctor?
Why ask it
The report is an interpretation, but the images are the underlying evidence, and any future specialist will want them. Requesting a DICOM copy on disc or a portal download the same day is far easier than reconstructing the request months later from a different clinic.
How to Actually Get a Radiologist's Time
Practical guidance for the conversation itself
Getting Access to the Person Who Reads Your Scan
Know who is in the room
The person positioning you is a radiologic technologist, and they can answer prep, timing, contrast and comfort questions expertly. The radiologist is usually in a separate reading room and may never see you. Direct patient contact is normal in breast imaging, ultrasound, fluoroscopy and interventional radiology, and rare in plain CT and MRI.
Route the request through your ordering doctor
The cleanest path is to ask your referring clinician to call the radiologist while you are in the room, or to request a formal radiology consultation. Radiologists answer clinician calls all day, and a three minute conversation between them often replaces a week of portal messages.
Call the department, not central scheduling
Scheduling staff cannot speak to radiation dose, contrast allergy premedication or MRI implant safety. Ask to be transferred to the modality lead technologist or the MRI safety officer, and call at least 48 hours before your appointment so protocol changes are still possible.
Move your priors before the day of the scan
A comparison scan is worth more than almost any new question you can ask. Contact the outside facility a week ahead for a DICOM disc or an image-share upload, and confirm with the reading department that it landed, because discs handed over at check-in frequently go unread.
Translating Report Language
- No acute abnormality: nothing urgent or newly dangerous, which is not the same as nothing wrong.
- Unremarkable: normal for your age and body, the most reassuring word in radiology.
- Cannot be excluded: the study is not able to rule this out, not a suggestion that it is present.
- Clinically correlate: the images are ambiguous alone and your symptoms and exam decide the meaning.
- Incidental finding or incidentaloma: something found by accident, unrelated to why you were scanned.
- Indeterminate: the features do not clearly sort benign from concerning, so follow-up or a biopsy decides.
- Limited study due to motion or body habitus: parts of the scan are less reliable, so ask which parts.
- Suspicious for: the radiologist thinks this is probably the concerning diagnosis and wants action.
- BI-RADS 3 in breast imaging: very likely benign, standard next step is a six month repeat rather than a biopsy.
- Recommend follow-up in X months: a live instruction with an owner, not a filing note. Get it on a calendar.
Pitfalls That Cost Patients Real Time
Reading the raw report cold
Reports now hit patient portals the moment they are signed, often days before anyone calls you. Decide in advance whether you want to open it immediately, and if you do, write down the exact phrases that worried you rather than searching each one, because search results skew toward the worst possible cause.
Treating a normal report as a full all-clear
Every study is scoped to a question. A non-contrast CT ordered for kidney stones is not a cancer screen, and a lumbar MRI says nothing about your hip. Ask specifically whether your symptom was inside the field of view and inside the protocol.
Letting a recommended interval quietly lapse
The recommendation lives in the report, but nobody owns the calendar unless you make them. Before you leave, get a name, a date and a plan for who books it, then set your own reminder a month early so a slipped appointment does not turn six months into eighteen.
Staying quiet about kidney function or a past reaction
Contrast decisions hinge on your eGFR, your diabetes medication and any previous hives, wheeze or swelling after a scan. Volunteer this at booking, not on the table, because premedication protocols take 12 to 13 hours and cannot be started once you are gowned.