Radiologists draw on several defenses when facing claims for an alleged misinterpretation, and the strategy usually centers on the inherent challenges of image interpretation while maintaining accountability for clear departures. A primary defense is that the finding was genuinely difficult to detect and fell within acceptable perceptual error rates, supported by expert testimony that reasonable radiologists could miss subtle findings.
Several arguments build on this theme. A hindsight bias defense contends that findings obvious once the outcome is known were not reasonably detectable during the initial interpretation. Satisfaction of search errors, in which one finding obscures another, may be raised where the radiologist appropriately identified and reported the initial finding. Documentation of systematic search patterns and proper technique can demonstrate adherence to the standard despite a missed finding.
Clinical and technical factors provide further defenses. A radiologist may argue that the clinical history provided was inadequate or misleading, affecting interpretation accuracy, or that the ordering physician failed to communicate crucial information. Technical issues such as motion artifact, suboptimal positioning, or equipment limitations may justify missing certain findings. The defense may present data showing acceptable miss rates for particular findings among competent radiologists, and the absence of comparison studies may excuse a failure to detect subtle progression.
Causation defenses are also common. A radiologist may argue that the patient’s outcome would not have changed even with a correct interpretation, which directly contests the requirement that the misread probably caused the harm. Time constraints and workload in emergency settings may be offered as context affecting the applicable standard.
In Georgia, these defenses operate within the Daubert framework, so both sides’ experts must rest their opinions on sufficient facts and reliable methods. The defenses recognize that radiology involves genuine perceptual challenges, while the standard under O.C.G.A. § 51-1-27 still holds radiologists accountable for clear departures from competent practice that cause harm.