SOMATOM® On.siteBringing critical care imaging to your patient with portable head CT

The Siemens Healthineers SOMATOM On.site portable head CT scanner delivers reliable and consistent imaging right at your patient's bedside. Transform the way you care for ICU patients suffering from acute and neuro critical conditions and deliver a new standard of care delivery in your hospital.

Staff move an ICU patient bed along a hospital hallway

Providing CT scans of the head for critically ill patients in the Intensive Care Unit (ICU) is crucial and often challenging. 

  • Transporting patients from the ICU to the radiology department requires up to five staff members to leave their other duties behind.1

  • More than 71% of ICU patients experience adverse events during transport specifically to the CT suite.2

  • Scanning of ICU patients in the radiology department impacts CT availability for other patients by blocking off more than double the time of conventional exams.2,3

Experience portable head CT scanning with SOMATOM image quality right at the patient’s bedside.

Reduce patient transports

  • CT imaging of the head directly in the ICU reduces complications associated with patient transports to the radiology department.
  • Reduce the number of ICU patient scans performed in the radiology department, potentially resulting in more streamlined utilization of stationary systems and staff.

Optimize staff deployment

  • ICU staff can remain in the ICU and focus more on their core tasks and care for their patients.
  • Reduce physical burden on staff by eliminating the need to transfer patients to a dedicated scanner and table.

SOMATOM image quality

  • The Touch UI makes scanner operation intuitive and easy.
  • Performing CT scans of the head at the patient's bedside helps physicians to reach fast treatment decision.

Features & Benefits

SOMATOM On.site interactive hotspot

    Clinical Use

    SOMATOM On.site brings SOMATOM image quality to the patient's bedside. All by combining proven technologies from existing SOMATOM scanners along with newly designed components.

    Brain window
    Courtesy of Siemens Healthineers

    Ensuring high-end imaging results at your patient’s bedside: Thanks to the latest advances in digital healthcare, myExam Companion contributes with built-in expertise. And, thanks to workflow guidance provided by GO technologies, the system is easy to use and enables greater consistency across your entire team to acquire optimal images.

    Technical Specifications

    Scanner type

    SOMATOM On.site


    2.4 cm (Stellar UFC)

    Physical detector rows


    Detector row thickness

    0.75 mm

    Acquisition mode 


    Tube voltage 

    80, 120 kV

    Tube current 

    3-25 mA (increments of 1 mA)

    kW output/generator power

    3 kW

    Gantry aperture

    35 cm

    Scan field/FOV 

    26 cm, HD FOV 35 cm* 

    Scan range 

    24 cm


    0.35 – 1.5 (in steps of 0.05)

    Iterative reconstruction algorithms 


    Reconstruction slice thickness options

    0.8, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0 mm

    Tube cooling

    Hybrid (air & water)

    Image transfer

    Wireless and LAN connection to hospital network


    4 rechargeable lead-acid batteries (4 x 12V)

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