Angiorunangiographic runs from CT
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Angiographic runs
from CT.

Open a CT angiogram and see the selective run before you are in the suite: the working angle, a catheter to start from, and the run itself.

Source CT angiogram, coronal slice TCIA CTpred-Sunitinib-panNET PAN_13, CC BY 4.0

The run, simulated from it

AP Pigtail · aorta
Simulated DSA of a pelvic flush injection from a public CT angiogram, pigtail catheter from the right femoral artery.
ArterialBlushPortal return

Uterine artery run on a public CTA with an enlarged uterus

Pelvic flush, right femoral access15 ml/s × 30 ml

Choose a case

  • Drag to swing the C-arm
  • Click a branch to run it
  • D for fluoro / DSA
  • Mag up on the target (M)

Simulated from a public CTA (TCIA CTpred-Sunitinib-panNET PAN_13, CC BY 4.0); the coronal slice is the scan itself. No catheter angiograms were acquired; fibroids were not diagnosed in this case. Every run frame is computed from the CT.

Request access See how it works

Free and invite-only. Desktop Chrome or Edge. Your CT never leaves your computer.

From CTA to run in four steps.

  1. 1

    Open a CTA

    Open an example case or your own thin-slice DICOM, NRRD or NIfTI.

    The Case step in the app: an example case, Open file and Open DICOM folder.The Angiorun app with a public CT angiogram open: the Case step on the left, a simulated DSA of every opacified vessel on the right.
    Simulated from a public CTA (above: AVT R9; below: ColonVessels pat_005, CC BY 4.0)
  2. 2

    Choose a branch

    Point at a branch to see its proposed name. A catheter is suggested for your access and target; you can change it.

    The Vessel step in the app: the branch name at the catheter tip, the access and the suggested catheter.Place catheter mode in the app: the pointer on a mesenteric branch, its proposed name shown beside it.
    Simulated from a public CTA (ColonVessels pat_005, CC BY 4.0)
  3. 3

    Choose an angle

    Select a vessel, then choose from its ranked C-arm angles. Then mag up: a smaller field on the target at the working angle.

    The app's three ranked C-arm angles for the superior mesenteric artery: 1. RAO 8° CRAN 40°, 2. LAO 8° CRAN 38°, 3. RAO 24° CRAN 38°, each with its foreshortening and overlap.The simulated DSA at the first of them, RAO 8° CRAN 40°: the superior mesenteric artery and its branches, the catheter tip labelled SMA.
    A simulated left internal iliac run at AP in a 42 cm field.42 cm field, AP
    The same run after mag up: a 16 cm field on the origin of the left uterine artery at RAO 60° CRAN 5°.Mag up: 16 cm field, RAO 60° CRAN 5°
    Below: a left internal iliac run before and after mag up. Simulated from a public CTA (above: ColonVessels pat_005; below: TCIA CTpred-Sunitinib-panNET PAN_13, CC BY 4.0)
  4. 4

    Play the run

    Play or scrub from arterial fill through blush and venous return, in DSA or fluoro.

    The Run step in the app: 4 ml/s × 12 ml, Run and Stop, the run at 2.0 s.
    A frame of the simulated selective SMA run at 2 s, in fluoroscopy.Fluoro
    The same frame as subtraction angiography.DSA
    The same frame at 2 s, in fluoro and in DSA. Simulated from a public CTA (ColonVessels pat_005, CC BY 4.0)

Why not just read the CTA?
Same CT. The run adds time and projection.

Coronal maximum-intensity projection of the public CT angiogram AVT R9: aorta, mesenteric and renal arteries, kidneys and spine. The scan itself, not simulated.
Source CT angiogramAVT R9, a 92 mm coronal MIP (CC BY 4.0)
Simulated selective SMA DSA at 2 seconds, AP: the jejunal and ileal branches filled, the catheter in the SMA.
2 sThe branches fill
Simulated selective SMA DSA at 5 seconds, AP: the bowel wall blush.
5 sThe bowel wall blush
Simulated selective SMA DSA at 12 seconds, AP: the superior mesenteric and portal veins opacified.
12 sPortal return

Simulated from a public CTA (AVT R9, CC BY 4.0; source scan RIDER Lung CT, CC BY 3.0). The first panel is the source CT itself; the other three are frames of the selective SMA run computed from it. No catheter angiograms were acquired.

What you need.

Bring the thin slices.

Use thin slices. Thicker series blur the small branches. Planned, not available yet: the thin series sent from the scanner before it is discarded.

A simulated SMA run from 0.75 mm slices.0.75 mm
The same run from the same scan resampled by the app to 2.5 mm slices: the small branches blur.2.5 mm
Simulated from a public CTA (ColonVessels pat_005, CC BY 4.0). Left: the native 0.75 mm slices (0.7 mm spacing). Right: the same scan resampled by the app to 2.5 mm spacing, an average over each slab, not a scanner's thick reconstruction.

Desktop Chrome or Edge with WebGPU.

The app runs in the browser, on your computer's own graphics processor. The examples on this page also play on a phone.

Your CT stays on your computer.

Files are processed in the browser; no image data leaves it. Identifiers are shown once, then dropped.

What Angiorun is not.

Angiorun is pursuing FDA clearance; it is not cleared and not for clinical use.

  • A personal, unvalidated tool. It is not a medical device and has no FDA clearance.
  • The angiographic runs are simulated. Runs are computed from CT and can differ from the table.
  • Names and suggestions are proposals. The catheter suggestions use a device catalog that is not yet reviewed.
  • Flow is modeled, not measured.

Invite-only, free.

Request access

Each request is read by the interventional radiologist who builds Angiorun.

No patient information, please. This form asks only who you are.

Already invited

Open the app

What happens next

  1. Your request is reviewed by hand.
  2. If approved, an email invitation arrives.
  3. Sign in and set up an authenticator app.

Needs desktop Chrome or Edge with WebGPU.

Built by an interventional radiologist, for IRs.

Aaron Abajian, MD, interventional radiologist

Aaron is a board-certified interventional radiologist who was a software engineer first: an MS in computer science at Stanford, an MD at Yale, IR training at Memorial Sloan Kettering. Angiorun is the tool he wished he'd had in fellowship.