GE Lunar iDEXA

Instrument Details

GE Lunar iDEXA


Anthropometry objective

Whole body DEXA scan

29th October 2021

Richard Powell, MRC Epidemiology Unit

The Lunar iDEXA is a GE healthcare DEXA system which can be used for whole body scans and has been designed to accommodate larger individuals than the GE Lunar Prodigy. GE healthcare DEXA systems uses a K-edge filter that absorbs the X-rays in the middle energy range creating two low energy X-rays and classes the Lunar iDEXA as a narrow-angle fan beam. It measures the attenuation of the two X-rays as they pass through body tissues. Different tissues absorb these x rays in different manners and it therefore distinguishes bone mass from soft tissue and within the soft tissue fat mass and lean mass. The manufactures enCORE software provides estimates of bone mineral content, fat and lean mass for the total body and specifically defined regions. The enCORE corescan software feature can produce estimates of visceral adipose tissue (mass and volume) within the android region. The measurement field is 197.5 cm x 66 cm for whole body scans with a maximum patient weight 204kg and a exposure of 3 to 6 µGy.

Instrument Characteristics
classification  -> Body composition
aquisition  -> Lab based (e.g. MRI)
staff  -> Acquisition
staff  -> Processing
staff  -> Interpretation
duration  -> 15-30 minutes
Instrument Estimates
Height / length
Weight / mass
Body shape or size
Fat mass
Visceral adipose tissue
Subcutaneous adipose tissue
Fat-free mass
Bone mineral content
Bone mineral density
Whole body composition
Regional body composition
Body density
Instrument Resources
Instrument Validities
Populations Countries Reference Link
Adults United Kingdom
Adults Kuwait