November 17, 2017 — Adaptix Ltd will showcase the capabilities of its Flat-Panel X-ray Source (FPS) which will make portable, low-dose, low-cost 3-D imaging more accessible, at the 2017 Radiological Society of North America (RSNA) annual meeting, Nov. 26-Dec. 1 in Chicago.
Many patients have computed tomography (CT) scans in order to investigate suspicious findings on an X-ray, but referring a patient to CT is costly. Fixed digital tomosynthesis (DT) systems exist which present excellent 3-D images at a fraction of the radiation dose and per image price. However, the systems remain expensive, are so large that they cannot be moved and the acquired images can often be prone to breathing artifacts. Adaptix now provides the option of mobile 3-D imaging at the bedside.
Each Adaptix FPS is made up of an array of cold cathode field emitters, sealed into a unit together with a power supply. The field emitters each generate a conelet of X-rays. Because the array would otherwise produce a large number of overlapping X-rays, a proprietary system, which avoids the common problem of high-voltage switching, allows for each X-ray emission to be addressed and individually controlled.
The FPS emits X-rays covering many different angles, allowing depth information to be derived through tomosynthesis. This is possible without the need to physically move the emitting source, which reduces acquisition time and therefore the risk of motion artifacts. A reduced standoff distance is used, reducing power requirements and thermal challenges compared to conventional tube-based X-ray sources. A further benefit is that the beam focal spots are well below the typical millimeter range, allowing for enhanced resolution.
This new approach is complemented by Adaptix’s image reconstruction solution, which was developed in conjunction with leading researchers from Oxford University’s Mathematical Institute and uses “sparse data” techniques to optimize image reconstruction and reduce the number of images required.
A first version of the FPS will be released to manufacture in 2018.
For more information: www.adaptiximaging.com