USING THE TELOS STRESS DEVICE FOR DIGITAL FUNCTIONAL IMAGING OF JOINTS UNDER LOAD.

Autor: Švec, Benjamin, Krumpak, Barbara
Zdroj: Bulletin: Newsletter of the Society of Radiographers of Slovenia & the Chamber of Radiographers of Slovenia; 2012, Vol. 29 Issue 1, p89-90, 2p
Abstrakt: Introduction: With Telos device we can produce X- ray scanning of a knee brace, ties in upperand loweranklejoint as well as the function of ligaments and ties. Device is known as »Telos Stress Device«. Some use the imaging devicefor »stress« recordings orfunctional imaging. Purpose: Estimation of tie injury (knee brace, ties in upper and lower ankle joint) and foot tie in function which is not possible with the classic X- ray scan. Methods: If we want to make an optical roentgenogram we have to use controlled load and apply exact force on pre-defined spot on the joint, so we can show the stability or instability of ties. This way we check possible joints movements. One minute load on joint before X- ray scanning is permitted. For each tie review there are defined projection and work methods. The force of 15 kp is applied to the joint. Results: With correct X- ray scanning and with controlled load we can show tie changes (instability of joint). Digital imaging methods and scan handling allow us to repair roentgenogram. It is possible to show just the joint and then to indicate where we have applied the force and afterwards mark on the scan the amount of force which was used to apply the desired load. Discussion: Before using the Telos device physicians (specialists) applied load during scanning, but the applied force was never correct. During examination the doctor who held the joint was exposed to X-ray radiation together with patient. Dose is smaller in digital scanning and we can also reduce exposure and still get optical roentgenogram in the end. Conclusion: By applying the load to the examined joint through the above device, the functional examination of ties is feasible. The advantage of digital scanning is that we avoid unnecessary additional scanning thus reducing the radiation level for the patient. Radiologist (physician) and radiological engineer immediately see the scan. Physician can quickly decide for additional projection which may give more information required for further diagnosis. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index