Comparing Accuracy of Night Radiology Interpretations for Pediatric Trauma: Radiology Residents Versus Attending Teleradiologists.

Background: Overnight radiology coverage for pediatric trauma patients (PTPs) is addressed with a combination of on-call radiology residents (RRs) and/or attending teleradiologists (ATs); however, the accuracy of these two groups has not been investigated for PTPs. We aimed to compare the accuracy of RRs vs AT interpretations of computed tomography (CT) scans for PTPs. Methods: Pediatric trauma patients (<18 years old) at a single level-I adult/level-II pediatric trauma center were studied in a retrospective analysis (3/2019-5/2020). Computed tomography scans interpreted by both RRs and ATs were included. Radiology residents were compared to ATs for time to interpretation (TTI) and accuracy compared to faculty attending radiologist interpretation, using the validated RADPEER scoring system. Additionally, RR and AT accuracies were compared to a previously studied adult cohort during the same time-period. Results: 42 PTPs (270 interpretations) and 1053 adults (8226 interpretations) were included. Radiology residents had similar rates of discrepancy (13.3% vs 13.3%), major discrepancy (4.4% vs 4.4%), missed findings (9.6% vs 12.6%), and overcalls (3.7% vs .7%) vs ATs (all P > .05). Mean TTI was shorter for RRs (55.9 vs 90.4 minutes, P < .001). Radiology residents had a higher discrepancy rate for PTPs (13.3% vs 7.5%, P = .01) than adults. Attending teleradiologists had a similar discrepancy rate for PTPs and adults (13.3% vs 8.9%, P = .07). Discussion: When interpreting PTP CT imaging, RRs had similar discrepancy rates but faster TTI than ATs. Radiology residents had a higher discrepancy rate for PTP CTs than RR interpretation of adult patients, indicating both RRs and ATs need more focused training in the interpretation of PTP studies.

Disparities in Diagnostic Imaging for Initial Local Staging for Rectal Cancer.

OBJECTIVE: To assess the presence, quality, and timeliness of initial staging imaging for rectal cancer patients, and to evaluate demographic factors associated with disparities. METHODS: We conducted a chart review of consecutive rectal adenocarcinoma cancer registry cases from a single institution for the period from 2015 to 2020. We recorded whether initial staging MRI or endoscopic ultrasound (EUS) was performed, and whether it was performed in or outside the institution. MRI quality was assessed based on compliance to the Society of Abdominal Radiology rectal cancer disease-focused panel protocol recommendations. The times between diagnosis and imaging were calculated. Patients' age, race, ethnicity, sex, body mass index, address, and primary payer were acquired from the electronic medical record. Descriptive analysis, odds ratios, and Student's t tests were used for analysis. RESULTS: Of 346 patients, 39% were female, and the average age was 59 years. A total of 93 patients (26.8%) had no initial staging MRI or endoscopic ultrasound. Of the 142 MRIs evaluated for image quality, 100 patient exams (72.4%) met the criteria for adequate quality. The mean time interval from diagnosis to imaging was 30.9 days. A lower likelihood of receiving initial local staging was associated with being of Hispanic ethnicity (P < .01), having Medicaid or no insurance (P < .01), and residing in a low-income census block (P < .01). Higher quality of imaging was associated with residence in a census block with high median income (P < 0.01), more recent diagnosis (P < .01), and MRI performed at the institution presented (P < .01). CONCLUSIONS: Although radiologic workup variability was found across all demographics, sociodemographic factors have an effect on local initial imaging of rectal cancer, emphasizing the need to improve image acquisition for underserved patients and improve quality standardization at low-volume centers.