Second-opinion consultations in neuroradiology

Area of Science:

• Radiology
• Medical Diagnostics
• Healthcare Policy

Background:

• Institutions increasingly utilize external imaging studies.
• Ensuring accuracy of outside interpretations is crucial for patient care.
• A policy for mandatory second-opinion consultations was implemented for external studies.

Purpose of the Study:

• To evaluate the clinical benefit of mandatory second-opinion consultations for external neuroradiology studies.
• To quantify the rate of interpretation discrepancies between outside reports and institutional second opinions.

Main Methods:

• Retrospective review of 7,465 outside neuroradiology studies from 2008.
• Comparison of outside reports with subspecialty neuroradiologist second-opinion reports.
• Classification of discrepancies using a five-point scale (clinically important vs. unimportant).

Main Results:

• Of 4,534 studies with comparison reports, 7.7% (347) had clinically important discrepancies.
• Discrepancies were more often in detection (67.1%) than interpretation (32.9%).
• Second opinions were correct in 84% of cases with category 4 or 5 discrepancies when a definitive diagnosis was available.

Conclusions:

• A significant rate of clinically important interpretation differences exists for outside neuroradiology studies.
• Mandatory second-opinion consultations identify critical discrepancies, enhancing diagnostic accuracy.
• Review of outside imaging studies by subspecialists demonstrably benefits patient care and clinical decision-making.