Full-Body Imaging, Compared

An at-a-glance view of positioning, image coverage and radiation across EOS, conventional X-ray, CT and MRI.

Standing

Weight-bearing

EOS acquisition

2 views

Front + side

Captured together

Low-dose

X-ray imaging

Radiation is not zero

London

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Main Comparison

Modality	Patient position	Imaging / image assembly	Radiation
EOS - Full Body Scan	Standing and weight-bearing	2 continuous frontal and lateral views, captured together; no stitching.	Low-dose X-ray
Conventional X-ray - Full Body Scan	Standing or lying down	Multiple frontal and lateral exposures may be needed. Digital stitching depends on equipment.	Varies; often higher than EOS for the same anatomy
CT - Full Body Scan	Usually lying down	Multiple cross-sectional X-ray slices, with optional 3D reconstruction.	Higher ionising dose than comparable EOS imaging
MRI - Full Body Scan	Usually lying down	Multiple sequences covering the required anatomical regions.	No ionising radiation

EOS - Full Body Scan

Patient position: Standing and weight-bearing
Imaging / image assembly: 2 continuous frontal and lateral views, captured together; no stitching.
Radiation: Low-dose X-ray

Conventional X-ray - Full Body Scan

Patient position: Standing or lying down
Imaging / image assembly: Multiple frontal and lateral exposures may be needed. Digital stitching depends on equipment.
Radiation: Varies; often higher than EOS for the same anatomy

CT - Full Body Scan

Patient position: Usually lying down
Imaging / image assembly: Multiple cross-sectional X-ray slices, with optional 3D reconstruction.
Radiation: Higher ionising dose than comparable EOS imaging

MRI - Full Body Scan

Patient position: Usually lying down
Imaging / image assembly: Multiple sequences covering the required anatomical regions.
Radiation: No ionising radiation

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What Each Modality Can Assess

The examinations have different purposes, so the right one depends on the clinical question.

Clinical feature	EOS	Conventional X-ray	CT	MRI
Standing assessment of skeletal alignment	Yes	Possible with standing views	Not routine	Not routine
Spine, pelvis and legs assessed together	Yes	Multiple views / protocol	With suitable protocol	With suitable protocol
Simultaneous continuous front and side views	Yes	No	Not projection imaging	Not projection imaging
3D skeletal reconstructions	Selected structures	Not routine	Yes	Possible
Detailed discs and nerve assessment	No	No	Limited	Excellent
Leg length and joint axis measurements	Yes	Yes, selected views	Possible	Possible

What “full body” means

ScanAlign EOS is a standing skeletal-alignment examination focused on the spine, pelvis and lower limbs. It is not an MRI or CT equivalent for organs, nerves or soft tissues.

Selected Published Sources

Clinical note: An imaging examination should be selected and justified for the patient's individual question. For comparison and discussion only. Last updated November 2026.