Traditional filament-based X-ray tubes have been the industry standard for decades; however, they come with limitations in terms of energy efficiency, lifespan, and radiation emission. The results of a recent study by researchers at Harvard Medical School were recently previewed ahead of being presented at the Radiological Society of North America (RSNA) annual meeting next week. The results showcase carbon nanotube (CNT) X-ray sources as an alternative to conventional filament tubes, with the potential to transform medical imaging, offering benefits for patients, healthcare professionals, and the environment!
Comparing CNT and Filament Tubes as X-Ray Sources
Researchers from Harvard Medical School compared the size, weight, energy consumption, image quality, radiation, and environmental impact of a CNT and standard filament tube bought from different vendors.
The comparison showed that, aside from being 75% smaller and 50% lighter, the digital CNT X-ray source consumed 17% less energy than the filament tube while producing the same energy and current X-rays in pulse mode. When used for continuous fluoroscopic imaging, CNT-based sources produced 44% less radiation compared to filament-based tubes, representing a safer option, particularly in cases where repeat scans are required, for example, in disease monitoring or screening applications.
The researchers imaged a cadaver hand and reported similar quality images with both types of X-ray tubes. Finally, the manufacturing processes were compared, highlighting the superior manufacturing process of CNT X-ray tubes in terms of their lower carbon emissions. CNTs are also extremely strong and highly durable, which may expand the lifespan of X-ray tubes, further improving their sustainability.
In this analysis, CNT-based X-ray sources outperformed conventional filament tubes in every aspect other than image quality, in which they performed equally. As a result, digital CNT X-ray sources represent a more sustainable, safer, and ultimately better choice not only for patients but also for the environment! This has led to several companies developing CNT-based X-ray tubes, with their compact size, lightweight design, and lower power consumption making them particularly suitable for implementation in medical imaging devices in developing nations.
TrimTabs’ Take
At TrimTabs, we love nothing more than seeing CNTs used to create value in society, especially when it leads to the development of more sustainable solutions with the potential to help those who need it. We will certainly be staying tuned for more updates!
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