PAEA Surgery End Of Rotation (EOR) Practice Exam

What imaging study is preferred for evaluating cervical spine issues in the presence of motor and/or sensory loss?

1. Magnetic resonance imaging (MRI)

2. CT scan

3. X-ray

4. Ultrasound

The correct answer is: CT scan

Magnetic resonance imaging (MRI) is often the preferred imaging study for evaluating cervical spine issues in the presence of motor and/or sensory loss because it provides superior visualization of soft tissues, including the spinal cord, intervertebral discs, and surrounding structures. MRI can effectively identify conditions such as disc herniation, cord compression, tumors, or other pathologies that may be contributing to neurological deficits. The use of MRI is particularly valuable in acute settings where urgent intervention may be necessary due to the risk of permanent neurological damage. MRI is non-invasive and does not involve ionizing radiation, making it a safer option, especially when repeated imaging might be required. In contrast, while a CT scan can provide detailed images of bony structures and is useful in assessing fractures or complex anomalies, it is less effective for soft tissue evaluation compared to MRI. X-rays may help identify gross structural problems or alignment issues but lack the resolution to assess neurological implications. Ultrasound is typically not utilized for evaluating the cervical spine in adults due to limitations in its ability to penetrate dense tissues and provide comprehensive images of the spine and spinal cord. Thus, in situations involving motor and sensory loss, MRI stands out as the imaging modality that can best assess the causes related to cervical spine pathology