Two X-ray cameras at perpendicular angles image blood vessels from two views at once โ 3D precision, less contrast, lower radiation.
Bi-plane angiography is an imaging technique that visualises the blood vessels within the body using two X-ray machines positioned at perpendicular angles โ giving a more comprehensive and precise image than a single system ever could.
It is commonly used during catheterization procedures to guide precise catheter placement โ this technology has revolutionised interventional radiology and meaningfully improved patient outcomes.
| Single-Plane | Bi-Plane | |
|---|---|---|
| X-ray systems | One | Two, at perpendicular angles |
| Views per injection | One | Two, simultaneously |
| Image understanding | Two-dimensional | Three-dimensional |
| Contrast dye needed | More โ separate injection per view | Less โ one injection, two views |
| Radiation exposure | Higher, from repeated runs | Lower, from fewer runs |
| Procedure time | Longer | Shorter |
An aneurysm neck can look narrow from one angle, wide from another โ 2D can be misleading.
True shape, size and orientation seen live, not inferred.
Aneurysms, AVMs, and stroke thrombectomy all benefit directly.
Lower total contrast load matters for patients with reduced kidney function.
Bi-plane angiography is an imaging technique that uses two X-ray machines positioned at perpendicular angles to visualise blood vessels. It captures two views at once, giving a three-dimensional understanding of the anatomy rather than a flat two-dimensional image.
Traditional single-plane angiography uses one X-ray system and gives a two-dimensional image, requiring a fresh contrast injection for each new angle. Bi-plane uses two systems at right angles and captures both views simultaneously from a single injection, meaning less contrast, less radiation, and shorter procedures.
Blood vessels are three-dimensional, and a single flat view can be misleading. An aneurysm neck may look narrow from one angle and wide from another, and overlapping vessels can be mistaken for one. Two simultaneous views let the doctor judge the true shape and orientation of a lesion in real time.
Yes. Because two views are obtained from a single contrast injection, fewer imaging runs are needed. This lowers both the total contrast load, important for patients with reduced kidney function, and the radiation exposure.
It is used for cerebral angiography (DSA), brain aneurysm coiling and flow diverter placement, brain AVM embolization, acute stroke mechanical thrombectomy, and carotid stenting โ any procedure where complex vascular anatomy must be navigated precisely.
It improves safety in several ways: less contrast dye, less radiation, shorter procedure times, and more accurate device placement in complex anatomy. In emergencies like acute stroke, the shorter procedure time itself matters, because every minute of delay costs brain tissue.
The imaging itself is painless. It is performed as part of a catheter procedure, usually under local anaesthesia or sedation, through a small puncture in the groin or wrist.
Bi-plane angiography is performed by Dr. Suresh Giragani, Consultant Interventional Radiologist at Apollo Hospitals, Jubilee Hills, Hyderabad, in a dedicated angiography suite, with over 18 years of experience in neurovascular intervention.
Book a consultation with Dr. Giragani, or send your scans and reports for a specialist second opinion.