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In less than a few seconds, Dual Energy Subtraction can help to eliminate obstructions from overlying bones while providing additional information on calcifications in chest studies.
At a glance
Quick and easy
One acquisition with two exposures at different energy levels takes just 160 ms
See more than in standard X-ray
Ability to separate bone image provides information on calcifications
Minimal dose
A Dual Energy Subtraction exam has ~100x less dose than a low-dose CT¹
Reduced patient movement
Rapid acquisition generates high-quality final images
Clinical images
See Dual Energy Subtraction in action
Bone calcification detection
Bone image helps radiologists visualize calcifications more clearly
Lung nodule detection
Soft tissue image helps radiologists detect abnormalities typically obscured by bone
- Bone calcification detection
- Lung nodule detection
Clinical diagnoses are complicated by overlapping anatomy
71M
Chest X-ray studies are performed annually in the United States²
26.4%
of the lung volume is obscured by other anatomy on frontal chest radiographs²
43%
of the lung area is obscured by other anatomy on frontal chest radiographs²
90%
of missed lung cancer cases relied on chest X-rays³
Features
See bone and soft tissue better
See more fast
Two acquisitions. Three images.
Rather than relying solely on algorithmic image processing, Dual Energy Subtraction acquires two exposures at different energy levels in less than 160 milliseconds. You can process and view the image as:
- A standard radiographic image
- An image with bones subtracted
- An image of just the bones to highlight foreign objects or calcified structures
These images help you detect abnormalities that may have been obscured in a conventional radiograph.
Consistent images
Harnessing AI for uncompromised image quality
Dual Energy Subtraction is delivered within the Helix™ advanced image processing chain, delivering improved consistency despite variations in exposure technique and challenging exam conditions.
Case study
Hear from your peers
“The advent of routine Dual Energy Subtraction use has led to a reduction in our false positive findings when reporting indeterminate single energy chest radiographs.”
Leeds Teaching Hospitals NHS Trust, United Kingdom
- Hear from your peers
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Disclaimer
Dual Energy Subtraction is available for fixed radiography systems. Not available on all systems. Application version depends on the system. Contact your local GE HealthCare representative to learn about availability in your market.
References
- Crosbie PA, Gabe R, Simmonds I, et al. Yorkshire Lung Screening Trial (YLST): protocol for a randomised controlled trial to evaluate invitation to community-based low-dose CT screening for lung cancer versus usual care in a targeted population at risk. BMJ Open 2020; 10:e037075. https://bmjopen.bmj.com/content/10/9/e037075 [Accessed 31st August 2023].
- Chotas HG1, Ravin CE. Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm. Radiology. 1994 Nov;193(2):403-4
- Missed lung cancer: when, where, and why? Annemilia del Ciello, Paola Franchi, Andrea Contegiacomo, Giuseppe Cicchetti, Lorenzo Bonomo, and Anna Rita Larici; 2017 Feb 16. doi: 10.5152/dir.2016.16187
JB32033XX January 2025