Diaphragmatic attenuation may be reduced by:

When considering how to reduce diaphragmatic attenuation during imaging, acquisition in a prone position is particularly effective. This positioning helps minimize the interference from the diaphragm in various imaging modalities, such as SPECT or PET.

When the patient is in a prone position, the diaphragm moves away from the areas of interest, allowing for better visualization of the underlying structures and reducing the attenuation caused by overlying tissue. This is significant when imaging parts of the abdomen or thorax, as the diaphragm can often obscure important anatomical details or lead to lower-quality images due to its varied density and position, depending on the patient's posture.

Other methods, such as 360-degree acquisition or supine acquisition, do not address the issue of diaphragmatic attenuation in the same targeted manner. Delayed imaging can sometimes help in clarifying certain aspects of a study but does not fundamentally alter the effect of the diaphragm’s location on the imaging results in a way that a prone acquisition does. Thus, acquiring images while the patient is in a prone position stands out as the most effective method for reducing diaphragmatic attenuation.