CAMRT Radiography Practice Exam

Which imaging modality is primarily used for functional studies of tendon injuries?

1. X-ray

2. Ultrasound

3. MRI

4. CT scan

The correct answer is: MRI

The imaging modality primarily used for functional studies of tendon injuries is ultrasound. Ultrasound is particularly effective in evaluating soft tissues, including tendons, because it provides real-time imaging and allows the clinician to observe the function of the tendon during movement. This dynamic capability enables the assessment of tendon tears, inflammation, and other pathologies while the patient performs active or passive maneuvers. Ultrasound is also advantageous because it is a cost-effective, portable imaging option that does not involve ionizing radiation. It allows for guided interventions, such as injections or aspirations, providing immediate feedback on the condition of the tendon. Although MRI can provide detailed images of tendon anatomy and is useful for identifying structural changes or degeneration, it does not provide the same functional assessment as ultrasound. X-ray primarily visualizes bony structures and is limited in evaluating soft tissue injuries. CT scans, while excellent for detailed cross-sectional imaging, are less commonly used for tendon evaluation compared to ultrasound and MRI. Thus, the attributes of ultrasound make it the preferred choice for functional studies of tendon injuries.