At what percentage of overlap should CT sections be reconstructed for improved MPR image quality?

Reconstructing CT sections with a 50% overlap is optimal for improved multiplanar reconstruction (MPR) image quality. At this overlap percentage, there is a good balance between spatial resolution and avoiding unnecessary increases in radiation dose. The 50% overlap helps to ensure that the data collected provides sufficient detail and continuity for creating high-quality images in different planes, making it easier for radiologists to interpret structures and pathologies accurately.

When the reconstruction is set at this level of overlap, it allows for greater precision in aligning the slices during MPR, leading to fewer artifacts and more clinically useful images. This overlapping technique enhances the visualization of anatomical structures, which can be crucial for assessments in areas like the chest, abdomen, and pelvis.

Higher overlap percentages, such as 70% or 100%, would increase the volume of data reconstructed, potentially leading to longer processing times and not always providing significant additional benefits in image quality. Similarly, lower overlaps, like 30%, could lead to gaps in the data, resulting in less accurate reconstructive imaging. Thus, the choice of 50% is a well-studied approach that balances image quality, processing efficiency, and patient safety.