What is true regarding spine radiography to evaluate scoliosis?

The selected answer indicates that the image receptor (IR) should extend from the top of the patient's ear to the level of the greater trochanter, and this is correct in the context of evaluating scoliosis through spine radiography. Scoliosis affects the entire spine, and comprehensive imaging is essential to adequately assess its curvature and potential implications.

Positioning the IR from the top of the ear to the level of the greater trochanter ensures that all segments of the spine, including the cervical, thoracic, and lumbar regions, are included in the radiographic view. This broad coverage allows for an accurate diagnosis and assessment of the severity of the scoliosis.

In contrast, positioning the IR only at the iliac crest would limit the visualization to just the lower part of the spine, which might miss critical areas that contribute to the diagnosis and treatment planning. Focusing solely on the lumbar region does not provide the complete picture required to evaluate scoliosis, as the curvature may involve multiple levels of the spine. Additionally, positioning the IR parallel to the spine may not provide the necessary angulation to best visualize the curves, compromising the quality and diagnostic value of the radiographic images.

In summary, the correct choice emphasizes the importance of comprehensive imaging in the evaluation