What factor can adversely affect the accuracy of B-scan imaging?

Movement of the patient during a B-scan imaging exam can significantly compromise the accuracy of the results. B-scan ultrasound relies on precise positioning and stability to generate clear images of the ocular structures. If a patient moves, even slightly, during the procedure, it can lead to motion artifacts, making it difficult to obtain crisp, high-quality images. This can obscure important details and may result in misinterpretation of the findings.

In contrast, while factors like pupil dilation, environmental light exposure, and the type of ultrasound gel utilized can influence various aspects of imaging, they do not directly affect the accuracy of the spatial representation of structures in the same way patient movement does. Pupil dilation is necessary for certain procedures, while light exposure primarily pertains to optical imaging. The choice of ultrasound gel can affect the coupling and attenuation of sound waves but is less impactful than patient movement in terms of real-time image acquisition and clarity.