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← ScienceWhich image artifact results when optical coherence tomography uses broadened laser signal?
A)Reduced axial resolution✓
B)Increased penetration depth
C)Enhanced lateral resolution
D)Suppressed speckle noise
💡 Explanation
Broadened laser signals decrease temporal coherence, which limits resolving fine details; therefore axial resolution decreases, because coherence length is inversely proportional to bandwidth, rather than lateral resolution which depends on focusing optics.
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