Remasking a digitally subtracted image may be necessitated due to what reason?

Remasking a digitally subtracted image is necessary when certain issues in the image can compromise the diagnostic quality. Noise artifacts can obscure important details in the image, leading to misinterpretation or missed diagnoses. If there is motion during the imaging process, motion artifacts can create blurriness or distortions that affect the clarity and reliability of the subtracted image. Additionally, underexposure can result in insufficient image contrast and detail, which needs to be corrected to ensure accurate assessment. Since all these factors can detract from the quality of a digitally subtracted image, remasking becomes essential to improve the overall image quality and to provide a clearer, more accurate representation for analysis. Therefore, recognizing that these various factors contribute to the need for remasking highlights the complexity involved in ensuring optimal imaging results in fluoroscopy.