Interventional Radiology & Image-Guided Surgery
An open library for IR and image-guided surgery
A growing collection of cases, procedures, devices, and courses contributed by interventional radiologists and image-guided surgery specialists.
From the library
Real cases, contributed by clinicians.
The Dottir IR Exchange is the open library underneath the platform. Every case, article, procedure and device is free to read — sign in to contribute your own.
Procedures
- Peripherally Inserted Central CatheterVascular
- Nephrostogram: Percutaneous Nephrostomy Imaging ProtocolGenitourinary
- Cystogram: Bladder Fluoroscopy ProtocolGenitourinary
- Urethrogram: Urethral Fluoroscopy Imaging ProtocolGenitourinary
- Cholangiogram: Biliary Drain and T-Tube Imaging ProtocolGastrointestinal
- Loopogram: Ileal Conduit and Colostomy Imaging ProtocolGastrointestinal
And many more inside. Free to read like a Wikipedia for IR — sign in only when you want to contribute, take exams, or join the Fellowship.
Contents
What's inside
Cases
Clinical cases with imaging, approach, and outcomes. Learn from experience across the speciality.
Articles
Technique reviews, evidence summaries, and clinical insights written by practising clinicians.
Procedures
Detailed procedural guides with practical tips from experienced operators.
Devices
A growing catalogue of devices with specifications, indications, and operator experience.
Courses
Structured learning from foundational topics through to advanced IR and image-guided surgery.
Exams
Practice questions and mock examinations for board preparation and revision.
Written by clinicians
Cases and techniques contributed by practising interventional radiologists and image-guided surgery specialists.
Organised for learning
From individual case reports to curated courses and examination preparation at any stage of training or practice.
Growing over time
Every contribution adds to the library. The more the speciality contributes, the more useful it becomes.
Roadmap
A timeline of the work
Six milestones in the Dottir roadmap, from 2021 to 2028. Milestones that have already shipped are drawn in solid. Planned milestones are drawn in dashed.
Open the full roadmap- I2021-22ShippedI2021-22· Shipped
IR Bites
Twenty live webinars and a short educational handbook, aimed at making IR training more accessible to junior doctors.
- 20 webinars
- Handbook
- II2023ShippedII2023· Shipped
Workshops and podcast
Five hands-on workshops across two hospitals, early industry partnerships, and co-founding the IR Juniors Podcast.
- 5 workshops · 2 hospitals
- IR Juniors Podcast
- III2024ShippedIII2024· Shipped
Textbook and fellowship
Radiology Café textbook collaboration, and appointment as RCR Education Fellow.
- Radiology Café
- RCR Education Fellow
- IVQ2 2025ShippedIVQ2 2025· Shipped
dottir.app MVP
Launch of the open platform. Over 200 sign-ups in the first 48 hours, across five continents and 22 countries.
- 200+ waitlist · 48 hrs
- 5 continents · 22 countries
- VQ2 2026CurrentVQ2 2026· Current
IR Exchange, full platform
The IR Handbook and IR Primer are published, and the full Dottir IR Exchange launches: a peer-reviewed case library with PACS-lite viewing, an illustrated procedure index navigable by body part, exam banks, and courses led by senior specialists.
- IR Handbook
- IR Primer
- Procedure index
- VI2027PlannedVI2027· Planned
Dottir Fellowship and Academic Faculty
A formal Dottir Fellowship programme with CPD accreditation, supported by a global Academic Faculty of senior consultants and IR registrars.
- Fellowship
- Academic Faculty
- CPD accredited
- VII2028PlannedVII2028· Planned
Native apps and AR walkthroughs
iOS and Android apps for the Dottir IR Exchange, with augmented-reality procedure walkthroughs for immersive, case-based learning.
- iOS · Android
- AR walkthroughs