- The written exam is 200 four-option MCQs in four hours, delivered via Prometric.
- Ultrasound, Breast Imaging, Neuroradiology, and Musculoskeletal Imaging each carry 9% weight - the highest of the 12 domains.
- Initial certification also requires a separate two-hour oral exam held virtually via Zoom.
- Total standard fees run $3,050 ($500 application + $950 written + $1,600 oral); late fees increase written/application costs.
Overview: What This Certification Actually Covers
This page focuses specifically on the initial written examination administered under Board Certification in Diagnostic Radiology through the American Board of Physician Specialties (ABPS), via its Board of Certification in Radiology (BCR). It is a different credentialing pathway from ABR examinations, and it is separate from ABPS recertification, which we cover on its own in our requirements guide. Treat this cheat sheet as a quick-reference companion, not a replacement for full preparation - for that, see our full study guide.
If you're still mapping out whether this pathway fits your career, our overview on what this certification is and our breakdown of ROI considerations are good starting points before you dive into content review.
Written Exam Format at a Glance
The passing standard is set using a modified Angoff process rather than a fixed raw score, which means the cut score is determined by expert judgment on item difficulty rather than a flat percentage. For a deeper explanation of how this affects your target score, read our dedicated passing score breakdown.
- Question count: 200 items
- Time allowed: 4 hours
- Format: Single-best-answer, four options
- Delivery: Prometric test center or ProProctor (per your authorization letter)
- Scoring method: Modified Angoff-derived passing standard
The 12 Domains, Ranked by Weight
The written exam blueprint spans 12 categories, and the current outline's linked reference list was last revised August 2025. Percentages are approximate, but they tell you where to allocate your limited review hours. Our full domains guide unpacks each one in depth; here's the compressed version.
| Domain | Weight |
|---|---|
| Ultrasound | 9% |
| Breast Imaging | 9% |
| Neuroradiology | 9% |
| Musculoskeletal Imaging | 9% |
| Thoracic Imaging | 8% |
| Genitourinary Tract Imaging | 8% |
| Basic Knowledge of Physics | 8% |
| Gastrointestinal Studies (Contrast and Non-Contrast) | 8% |
| Angiography/Interventional Radiology | 8% |
| Anatomy | 8% |
| Nuclear Medicine | 8% |
| Pediatrics | 8% |
Ultrasound (9%)
One of the four highest-weighted domains. Expect coverage across abdominal, pelvic, vascular, and obstetric ultrasound applications and interpretation.
- Prioritize this domain early since it shares tissue-pattern recognition concepts with several other domains
Breast Imaging (9%)
Mammographic, ultrasound, and MRI-based breast imaging findings, BI-RADS reasoning, and screening versus diagnostic workup pathways.
- Review classification schemes carefully - single-answer questions often hinge on category boundaries
Neuroradiology (9%)
Brain, spine, and head/neck imaging across modalities, including common pathology recognition under time pressure.
- Practice timed image-based recall since this domain is content-dense
Musculoskeletal Imaging (9%)
Fracture patterns, joint pathology, soft tissue and bone tumor imaging, and modality selection logic.
- Pair this with Anatomy review, since structural knowledge overlaps heavily
The remaining eight domains - Thoracic Imaging, Genitourinary Tract Imaging, Basic Knowledge of Physics, Gastrointestinal Studies, Angiography/Interventional Radiology, Anatomy, Nuclear Medicine, and Pediatrics - sit at 8% each. Don't let the slightly lower weighting fool you into skipping any of them; collectively they represent well over half the exam.
Key Takeaway
Because the four 9% domains only edge out the 8% domains by a single point each, no domain can be safely deprioritized. Build a review schedule that touches all 12 rather than over-indexing on the highest-weighted four.
The Oral Examination Component
Initial certification isn't complete with the written exam alone. Candidates must also pass a separate two-hour oral examination, delivered virtually through Zoom. This is a distinct step in the process with its own fee and its own preparation demands - case-based discussion and verbal reasoning differ substantially from multiple-choice recall, so factor separate prep time into your schedule rather than treating it as an afterthought once the written exam is behind you.
Fees and Registration Mechanics
Budgeting matters as much as content review. Here's the standard fee structure, current at time of writing - always verify current amounts directly with ABPS before applying, and see our full cost breakdown for context on what these fees cover.
| Fee Type | Standard | Late |
|---|---|---|
| Application | $500 | $995 |
| Written Examination | $950 | $1,450 |
| Oral Examination | $1,600 | - |
| Total (Standard) | $3,050 | - |
| Annual Certification Management Fee | $895 (post-certification) | - |
Eligibility Snapshot
Before you register, confirm you meet the baseline eligibility criteria. Our detailed requirements article covers each item, but the core checklist is:
- A recognized MD or DO degree
- Unrestricted medical licensure
- A qualifying postgraduate first year or internship, plus an accredited diagnostic-radiology residency
- Active practice in the specialty
- Three physician recommendation letters, each dated within 12 months of application
- International medical graduates must supply ECFMG documentation
If any of these pieces are missing or in progress, resolve them before you pay the application fee - reapplication delays cost both time and money.
Recertification, in Brief
Certification through this pathway lasts eight years, after which recertification is required. While this cheat sheet centers on the initial written exam, it's worth knowing the maintenance obligations you're signing up for:
- 20 Category 1 specialty CME credits annually (160 total across the eight-year cycle)
- At least 50 self-assessment questions annually, except in the final year of the cycle
- Four approved medical-ethics CME credits
- Maintained unrestricted licensure throughout
- A 100-question, two-hour recertification exam
- Combined recertification application/exam fee of $1,499 (or $1,749 if filed late)
Keep a running CME log from day one of certification - reconstructing eight years of records at renewal time is far harder than logging as you go.
A One-Week Final Review Map
For candidates in the final stretch before test day, here's a compressed review map that respects domain weighting without ignoring lower-weighted categories. For a full multi-month plan, see our study guide.
High-weight domains
- Ultrasound and Breast Imaging review, focused on classification and pattern recognition
- Neuroradiology and Musculoskeletal Imaging case review
Core mid-weight domains
- Thoracic, Genitourinary, and Gastrointestinal imaging review
- Angiography/Interventional Radiology procedural indications
Foundational and specialty domains
- Basic Knowledge of Physics fundamentals and Anatomy cross-reference
- Nuclear Medicine and Pediatrics-specific findings
Timed practice and format review
- Full timed 200-question practice block to rehearse pacing across four hours
- Light review only - avoid new material the day before
If you want a sense of how difficult this pacing actually feels under real exam conditions, our difficulty guide and pass rate analysis both address that question directly. And once you're ready to test your recall against exam-style questions, our practice platform at the main practice test site mirrors the four-option, single-answer format you'll see on test day.
Who Pursues This Credential
Physicians pursuing Board Certification in Diagnostic Radiology are typically already practicing in diagnostic imaging roles and seeking a credential that validates competency across the full range of imaging modalities - not a single subspecialty niche. If you're weighing whether this fits your career trajectory, our articles on career and job pathways and earnings analysis provide broader context, and training pathway details outline how residency and postgraduate requirements connect to eligibility.
FAQ
The written exam contains 200 four-option, single-correct-answer multiple-choice questions, administered in a four-hour session through Prometric.
Yes. Initial certification requires both the written exam and a separate two-hour oral examination, delivered virtually via Zoom.
Ultrasound, Breast Imaging, Neuroradiology, and Musculoskeletal Imaging each carry approximately 9% weight - the highest among the 12 domains. The remaining eight domains are each weighted at approximately 8%.
Standard fees total $3,050, made up of a $500 application fee, a $950 written examination fee, and a $1,600 oral examination fee. Late application and written-exam fees are higher, at $995 and $1,450 respectively.
Certification is valid for eight years, after which recertification requirements apply, including ongoing CME, self-assessment questions, and a separate 100-question recertification exam.
For a complete walkthrough from eligibility through exam day, revisit our certification overview or start practicing directly with question sets modeled on the real exam format at our practice test platform.