Which type of patient habitus is most likely to experience increased exposure time during AEC imaging?

The correct answer focuses on the hypersthenic body habitus, which is characterized by a broader and denser physique. This body type generally requires increased exposure time during AEC (Automatic Exposure Control) imaging due to several physiological factors.

Individuals with hypersthenic habitus have a thicker layer of soft tissue and denser bones compared to other body types. As a result, the X-ray beam must penetrate more material to produce an adequate image. AEC systems are designed to measure the amount of radiation transmitted through the patient and automatically adjust the exposure time accordingly. Due to the increased density and thickness of a hypersthenic patient's anatomy, the AEC will require a longer exposure time to achieve the necessary imaging quality.

In contrast, other body habitus types—like hyposthenic, athletic, and normal—generally have less tissue density, which often allows for shorter exposure times. Hyposthenic individuals have a more slender build, causing less attenuation of the X-ray beam, while athletic and normal habitus patients also present with anatomical features that result in less scatter and absorption of the X-rays. Hence, these types usually experience a reduction in exposure time compared to hypersthenic patients.