Here are three things to know:
1. Researchers developed a collection of systematic reviews and meta-analyses of observational studies from Medline and Embase databases that gave a prevalence of incidentalomas.
2. Three of the nine total meta-analyses addressed incidentalomas in spine, cardiac and brain MRI scans.
3. The percentage of patients with a detected incidentaloma for each imaging test was:
• Chest computed tomography — 45 percent
• Computed tomography colonoscopy — 38 percent
• Cardiac MRI — 34 percent
• Spine MRI — 22 percent
• Brain MRI — 22 percent
• PET/computed tomography — 2 percent
• Chest computed tomography for incidental pulmonary embolism — 2 percent
Researchers concluded while computed tomography of the chest lead to incidentalomas, computed tomography colonoscopies and cardiac MRI scans had the highest rate of incidentalomas. Also, there is a large variability across different imaging techniques regarding the prevalence of incidentalomas.
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