Effect of image compression on telepathology. A randomized clinical trial

Area of Science:

• Digital Pathology
• Medical Imaging
• Telemedicine

Background:

• Store-and-forward telepathology systems require optimization methods like image compression.
• Evaluating the impact of image compression on diagnostic accuracy is crucial for telepathology deployment.

Purpose of the Study:

• To assess whether Joint Photographic Expert Group (JPEG) compression affects diagnostic accuracy in telepathology.
• To determine the effect of JPEG compression on image acceptability, pathologist confidence, and perceived image quality.

Main Methods:

• A double-blind, randomized, controlled trial was conducted.
• Pathologists evaluated both uncompressed (bitmap) and JPEG-compressed images.
• Key outcome measures included diagnostic accuracy, image acceptability, confidence levels, and image quality.

Main Results:

• No statistically significant difference in diagnostic accuracy was observed between uncompressed and JPEG-compressed images.
• Image acceptability, pathologist confidence, and perceived image quality remained unaffected by JPEG compression.
• Rater experience did not correlate with diagnostic accuracy.

Conclusions:

• JPEG compression does not negatively impact diagnostic accuracy in telepathology.
• The quality and acceptability of telepathology images are not compromised by JPEG compression.
• Pathologist confidence in diagnosis is maintained when using JPEG-compressed images.