Which of the following is an advantage of using lasers for patient setup?

The use of lasers for patient setup offers the advantage of improved accuracy in the positioning of patients for treatment. Lasers provide a precise means of alignment by projecting a narrow beam of light that can help therapists ensure the patient is correctly positioned relative to the treatment area. This precision is crucial in radiation therapy, where even slight deviations in patient positioning can lead to suboptimal treatment outcomes or increased risk of damage to surrounding healthy tissues.

Improved accuracy through laser guidance helps enhance the consistency of patient setups, leading to more reliable delivery of treatment. This means that radiation can be targeted more effectively to the intended area, which is vital in achieving the desired therapeutic effect while minimizing exposure to healthy tissue. Such accuracy is critical for the success of radiation therapies, thereby improving overall patient outcomes.

The other options, such as increased complexity, higher patient discomfort, and enhanced variability, do not align with the benefits of using lasers in this context and would generally be considered disadvantages or neutral aspects rather than advantages.