Surgical Imaging System

O-arm Surgical Imaging System

O-arm® Surgical Imaging with StealthStation® Navigation provides:

  • Speed in the OR: fast access to real-time, multi-plane 3D images (and 2D images)
  • Ease in the OR: full support of the unique workflow of spinal procedures
  • Safety in the OR: minimized radiation dose for surgical staff
  • Confidence in the OR: visualization to confirm hardware therapy placement, potentially eliminating revision surgeries

About the O-arm Surgical Imaging System

The O-arm Surgical Imaging System: 3D Imaging

The O-arm® Surgical Imaging System is a multi-dimensional surgical imaging platform that is optimized for use in spine, orthopaedic, and trauma-related surgeries. It provides real-time, intra-operative imaging of a patient's anatomy with high quality images and a large field-of-view in both two and three dimensions.

By integrating O-arm surgical imaging technology with Medtronic's StealthStation® surgical navigation systems, surgeons are able to perform less invasive procedures and confirm the precision of advanced surgical procedures before the patient leaves the OR.

O-arm Surgical Imaging System Benefits

The O-arm System seamlessly integrates with navigation

The O-arm System seamlessly integrates with StealthStation navigation.

  • Seamless Navigation Integration – By integrating with Medtronic StealthStation surgical navigation systems, the O-arm System reduces X-ray exposure, increasing safety for both OR staff and patients.
  • 2D Imaging and 3D Imaging  – Surgeons can choose simple, low-radiation 2D fluoroscopic images or full 3D reconstructions in standard and high definition.
  • Superior Image Viewing  – The O-arm System's large field-of-view and distortion free flat panel technology provide precise image quality for viewing any part of the patient's skeletal anatomy from head to toe.

Lumbar spine lateral and AP images using the full field-of-view in 2D

  • Automated Positioning Controls and Workflow  – The completely motorized O-arm System and user-friendly controls support quick and easy handling and a smooth workflow. Surgeons can set up and recall up to 4 preferred imaging positions with the touch of a button.

To view clinical images from the O-arm surgical imaging system, please visit the O-arm System Image Gallery.

Specifications: O-arm Surgical Imaging System

Category Specification

Physical Dimensions

O-arm® System 98.1" long ∞ 32.0" wide ∞ 79.6" high
(249 cm ∞ 81.3 cm ∞ 202.2 cm)
(“docked” with door open)
Weight ~ 1,950 pounds (885 k)

Gantry Opening – 27.5" at telescoping door (open) (69.9 cm)
Center of Bore Diameter – 38" (96.5 cm)

Mobile View Station
30" deep ∞ 29" wide ∞ 69" high (76.2 cm ∞ 73.6 cm ∞ 175 cm)
Weight ~ 350 pounds (159 k)

Imaging Modality Performance

Single Plane 2D
Pulsed fluoroscopy at 30 frames per second

Multi Plane 2D
Up to four 2D images, from pre-set positions

Standard 3D Volumetric
~13 seconds to acquire data over 360º
~13 seconds to reconstruct volume @ (512 ∞ 512 ∞ 192)
(0.830 mm axial,  coronal, and sagittal slice thickness)

High Definition 3D (HD3D) Volumetric
< 26 seconds to acquire data over 360°
< 26 seconds to reconstruct volume @ (512 ∞ 512 ∞ 192)
(0.830 mm axial slice thickness, 0.415 mm coronal and sagittal slice thickness)

3D Imaging Volume

Cylindrical Volume; 15 cm (high) ∞ 20 cm (diameter)
512 ∞ 512 ∞ 192 resolution
Selectable Slice Averaging
Multiplanar Reconstruction (MPR) - Axial, Sagittal, Coronal views

2D Image Enhancements

Edge detection (7 settings)
Recursive noise reduction (automatic)
Auto-brightness control
Auto window/level
Region of Interest (ROI); user selectable
Full field regional dose control

X-ray Tube

Varian A132 rotating anode insert with B100 housing; generator is max rated at 32 KW

Digital X-ray Detector

Varian model paxscan 4030CB; 2.0 K ∞ 1.5 K, pixel pitch of 0.194 mm;
amorphous silicon digital x-ray detector


X-Y shutters, electronically controlled by user, dynamically adjustable filter set
3D collimation also available

Power Assisted Transport
(for transport within facility)

Two-miles-per-hour power drive system; independent rear wheel drive; handle-controlled

Robotic Motion Controls
(movement speeds)

Longitudinal, transverse and vertical motion – two inches per second
Rotational wag – 4º per second
Rotational tilt – 8º per second
Gantry door (open/close) – 10º per second
Gantry rotor (internal) – 60º per second (max)

Robotic Motion Controls
(movement ranges from
docked position)

Linear gantry (vertical – ‘Y’); +/-9 inches (22.9 cm); 18 inches total (45.8 cm)
Linear gantry (transverse – ‘X’); +/-9 inches (22.9 cm); 18 inches total (45.8 cm)
Linear gantry (longitudinal – ‘Z’); +/-7 inches (17.8 cm); 14 inches total (35.6 cm)
Rotational wag: +/-15º
Rotational iso-wag™: +/-12º (nominal)
Rotational tilt: +/-45º
Fine adjustment of fluoroscopy position through reduced motion speed

Last updated: 30 Aug 2013

Featured Product

O-Arm feature tn
O-arm® imaging provides up-to-date information to the surgeon and the StealthStation for more precise OR decision-making.

ResponseCare Services

ResponseCare Services

Read about our Neurosurgery Navigation Service and Support.


Customer Service

(877) 242-9504

General Business

(888) 580-8860