Worth another look: Second opinion reads are more accurate at pediatric hospitals

Substantial discrepancy rates exist between imaging interpretations of radiologists at outside referring intuitions and those of radiologists at tertiary care children’s hospitals, according to a study published in the October issue of the American Journal of Roentgenology.

Original and second interpretations were in agreement in the majority of cases, though disagreements were found in 41.8 percent of reports, and 21.7 percent of reports featured major disagreements between first and second interpretations, according to J. Herman Kan, MD,  of Texas Children’s Hospital in Houston, and colleagues. Second interpretations were significantly correlated with the final diagnosis.

“These results indicate that interpretations by subspecialty radiologists at a point-of-care facility provide important clinical information about the pediatric patient and should be recognized by payers as integral to optimal care,” wrote the authors.

Kan and colleagues’ findings were based on a retrospective chart review of diagnostic imaging reports for all pediatric patients referred to a tertiary care children’s hospital from Jan. 1, 2009, to May 31, 2010. Original and second interpretations were compared by a fellowship-trained pediatric radiologist and neuroradiologist. A total of 773 exams were included.

Disagreements were found in 323 of the 773 reports, according to the authors. In addition to the 21.7 percent of reports with major disagreements, 20 percent featured minor disagreements. Reinterpretations were most frequently requested for neurologic studies, with major and minor disagreements occurring in 12.6 percent and 21.3 percent of neurologic cases, respectively. The most common major disagreements dealt with the presence of fracture and hemorrhage.

Body imaging cases featured major and minor disagreements in 32.6 percent and 18.7 percent of cases, respectively, according to the authors. Indications for appendicitis were the cause of 40.3 percent of major disagreements in nontraumatic abdominal imaging cases.

Radiographic studies were reinterpreted in only 5.3 percent of cases, and major and minor disagreements occurred in 36.6 percent and 17.1 percent of reinterpretations, respectively.

In the cohort of cases where final diagnosis was known, the second interpretation was more accurate than the orginal in 90.2 percent of cases, according to Kan and colleagues.

The authors acknowledged that reinterpretation of outsides studies is costly and adds to tertiary facility workloads, but wrote disagreements between interpretations “carry substantial implications for subsequent management and substantial implications for allocation of medical resources.“

Evan Godt
Evan Godt, Writer

Evan joined TriMed in 2011, writing primarily for Health Imaging. Prior to diving into medical journalism, Evan worked for the Nine Network of Public Media in St. Louis. He also has worked in public relations and education. Evan studied journalism at the University of Missouri, with an emphasis on broadcast media.

Around the web

GE HealthCare designed the new-look Revolution Vibe CT scanner to help hospitals and health systems embrace CCTA and improve overall efficiency.

Clinicians have been using HeartSee to diagnose and treat coronary artery disease since the technology first debuted back in 2018. These latest updates, set to roll out to existing users, are designed to improve diagnostic performance and user access.

The cardiac technologies clinicians use for CVD evaluations have changed significantly in recent years, according to a new analysis of CMS data. While some modalities are on the rise, others are being utilized much less than ever before.