Double-contrast barium enema studies: effect of multiple reading on perception error

Area of Science:

• Radiology
• Gastroenterology
• Medical Imaging

Background:

• Double-contrast barium enema (DCBE) is a common imaging technique for evaluating the colon.
• Accurate detection of colonic lesions is crucial for early diagnosis and treatment.
• Perception errors by single readers can lead to missed diagnoses in DCBE examinations.

Purpose of the Study:

• To evaluate the impact of multiple radiologist readings on the sensitivity and specificity of double-contrast barium enema (DCBE) for detecting colonic lesions.
• To determine if combining interpretations from multiple radiologists can reduce false-negative errors.

Main Methods:

• Sixty double-contrast barium enema (DCBE) examinations were independently reviewed by three radiologists.
• Lesion detection rates were calculated for single, double, and triple reading combinations.
• Sensitivity and specificity were assessed for each reading scenario.

Main Results:

• Single radiologists detected an average of 70.2% of visible lesions.
• Double reading combinations increased detection to 83.3%, and triple reading to 89.0%.
• These increases in sensitivity were statistically significant but accompanied by slight decreases in specificity.

Conclusions:

• False-negative perception error is a significant issue in interpreting DCBE examinations.
• Multiple radiologist readings effectively reduce interpretation errors and improve lesion detection sensitivity.
• This strategy enhances the diagnostic accuracy of DCBE for colonic lesion detection.