Radiology residency is five years of postgraduate training: one clinical intern year followed by four years of diagnostic radiology. The day-to-day work centers on interpreting medical images at a computer workstation, reading cases independently and then reviewing them with attending radiologists. It’s a training path that balances long hours of focused screen work with a structured curriculum, high-stakes board exams, and a gradual transition toward independence.
How the Five Years Break Down
Your first year isn’t radiology at all. It’s a preliminary or transitional internship spent rotating through clinical services like internal medicine, surgery, and emergency medicine. This year builds the clinical foundation you’ll rely on when interpreting imaging later. You learn how to manage patients, understand disease processes from the bedside, and develop the medical knowledge that separates a radiologist from someone who just looks at pictures.
Years two through five are the core radiology years, often labeled R1 through R4. Early on, you rotate through every imaging subspecialty: chest, abdomen, musculoskeletal, neuroradiology, nuclear medicine, pediatric radiology, and interventional radiology. Each rotation typically lasts a few weeks to a month. As you advance, rotations become more specialized, and you begin reading more complex cases with less hand-holding. By your senior year, you’re functioning close to the level of an attending, handling difficult cases and mentoring junior residents.
What a Typical Day Looks Like
Most services run from 8 a.m. to 5 p.m., though some start at 7 or 7:30 a.m. You arrive, sit down at your workstation, and start working through a list of studies that need to be read. These might be CT scans, MRIs, X-rays, or ultrasounds, depending on the rotation. You dictate preliminary reports using voice recognition software, then periodically throughout the morning you “read out” with an attending, meaning you present your findings, discuss the case, and make corrections to your reports before they’re finalized.
The rhythm is methodical. You’re sitting at a desk with specialized high-resolution monitors, clicking through images, measuring abnormalities, and dictating your impressions into a microphone. It’s intellectually demanding but physically sedentary. Ergonomics becomes a real concern. Many residents experiment with standing desks, gaming mice, programmable keyboards, and alternative input devices to reduce wrist strain and fatigue. These aren’t luxuries. Radiologists spend their entire careers at workstations, and habits formed in residency tend to stick.
Conference and didactic teaching sessions are woven into the schedule, often in the early morning or over lunch. These cover everything from imaging physics to case-based learning, and attendance matters because the material feeds directly into board preparation.
Call Schedules and After-Hours Work
Call is one of the more variable parts of radiology residency. Programs handle it differently. Some use a traditional call system where you stay on overnight and may or may not get a guaranteed day off afterward. Others have shifted to a night float model, where one resident covers nights for a week straight with no daytime duties during that stretch.
On call, you’re the first line for emergency and overnight imaging. Trauma CTs, stroke protocols, and urgent studies all come through you. You dictate preliminary reads that guide clinical decisions in real time, and an attending is available by phone or remote access for backup. This is where the pressure ramps up. Early in training, overnight shifts can feel overwhelming. By your senior years, you’ve seen enough pathology that the volume becomes manageable, and these shifts are often where residents gain the most confidence.
Weekend call adds another layer. You’ll typically cover Saturday or Sunday shifts on a rotating basis, reading a mix of emergent and routine studies that accumulated overnight.
The Board Exams
The American Board of Radiology Core Exam is the major milestone during training. You take it around the 36th month of your radiology years, which corresponds to the end of R3. It covers 18 categories spanning organ systems, imaging modalities, and fundamentals. Physics is a significant component, carrying at least 90 scored items compared to a minimum of 60 for other categories. Failing the physics section alone can result in a conditional exam result, even if you pass everything else.
The cross-cutting structure of the exam means each question counts toward both an organ system and a modality or fundamental category. So a question about a chest CT might test your knowledge of thoracic anatomy and your understanding of CT physics simultaneously. Preparing for this exam is a constant background task throughout residency, and many programs build dedicated study time into the R3 schedule.
After completing residency, there’s an additional certifying exam that tests your ability to apply knowledge in practice, but the Core Exam is the one that dominates your training years.
Diagnostic vs. Interventional Tracks
If you’re interested in procedures, interventional radiology has its own distinct pathway. The integrated IR residency is six years total: one intern year, three years focused primarily on diagnostic radiology with some IR rotations, and then two full years of interventional training. This track is available directly out of medical school.
Alternatively, you can complete a full four-year diagnostic radiology residency and then apply for an independent two-year IR residency afterward, which totals seven years. Both routes lead to IR board certification, but the integrated path is shorter and more streamlined. During IR training, you shift from reading images at a desk to performing image-guided procedures: biopsies, drain placements, embolizations, and vascular interventions. The lifestyle and daily work look very different from diagnostic radiology.
Fellowship Options After Residency
Most radiology residents pursue a one-year fellowship after completing their four diagnostic years. The ACGME-accredited subspecialties include abdominal radiology, musculoskeletal radiology, neuroradiology, pediatric radiology, nuclear radiology, and clinical informatics. Neuroendovascular intervention is another option for those interested in stroke treatment and cerebrovascular procedures.
Fellowship isn’t strictly required, but the job market strongly favors subspecialty training. A fellowship year lets you develop expertise in a focused area and makes you more competitive for academic positions or specialized private practice roles. Some residents choose to go directly into general practice, particularly in community settings where being a well-rounded generalist is valued.
Compensation During Training
Radiology resident salaries follow the standard graduate medical education pay scale, which increases incrementally each year. At UC San Diego, for example, the 2024-25 stipends range from roughly $86,800 for PGY-1 to about $99,000 for PGY-5, with housing stipends folded into those figures. Salaries vary by institution and region, but most programs fall within a similar range. Compared to the attending salary you’ll eventually earn, residency pay is modest, but it’s consistent with what residents in other specialties make at the same training level.
How AI Is Changing the Training
Artificial intelligence tools are increasingly part of the radiology landscape, and training programs are beginning to incorporate AI education into their curricula. Some programs have developed short intensive courses covering AI fundamentals, hands-on lab sessions, and discussions with engineers and radiologists who work with these systems. The goal isn’t to turn residents into programmers. It’s to make sure you understand how AI algorithms work, where they’re reliable, and where they fall short, so you can use them as tools rather than being replaced by them.
In practice, AI is already showing up in daily workflow. Automated triage systems flag studies with suspected strokes or pulmonary embolisms and push them to the top of your reading list. Computer-aided detection highlights potential lung nodules on chest CTs. These tools don’t make the diagnosis for you, but they change how you prioritize and review cases. Learning to work alongside them is becoming as fundamental as learning to read a CT scan in the first place.