An Image Quality–informed Framework for CT Characterization

Comparison of Strategies to Conserve Iodinated Intravascular Contrast Media for Computed Tomography During a Shortage

“…All contrast volumes were modeled using an iodine concentration of 300 mg iodine/mL. The registry pools consecutive CT scans performed at 161 imaging facilities associated with 27 health care organizations . We scaled the results (using data on age, weight, indication, and contrast use) to a hypothetical population of 1 million CT scans in adults and calculated percent reductions in total contrast usage from baseline.…”

“… a The distribution in patient age, weight, type of examinations by body region and indication for scanning, and use of iodinated intravenous contrast across these patient variable and computed tomographic (CT) types (see eTable in the Supplement) was based on their distribution in the University of California San Francisco International CT Dose Registry b In normal conditions without supply chain compromise, contrast is available in multiuse vials (in which exact volumes can be given to multiple patients but requiring a particular type of contrast injector) and single-use vials (can be given to individual patients, with or without combination of several single-use vials, where excess volume must be discarded).…”

“… a The distribution in patient age, weight, type of examinations by body region and indication for scanning, and use of iodinated intravenous contrast across these patient variable and computed tomographic (CT) types (see eTable in the Supplement) was based on their distribution in the University of California San Francisco International CT Dose Registry …”

Supervised Learning Models for the Preliminary Detection of COVID-19 in Patients Using Demographic and Epidemiological Parameters

“…However, these methods are invasive and need to have a radiology expert who can interpret the results, thus making the tests expensive. Furthermore, doctors do not recommend CT scans for all patients due to the radiation emitted by the machine, which can cause cancer [46]. X-rays are also prone to false-negative results [34], among other pitfalls.…”

Development and Application of a Web-Based Platform for Assessment of Observer Performance in Medical Imaging

“…Given the comparatively light codebase and the ability to run the WOAP on a standard web server, researchers can relatively efficiently adapt the platform to execute different studies with observers from different institutions/countries and in relatively large numbers, which is rarely reported in the literature (i.e., > 10 observers). Hence, it becomes more feasible to complete agreement studies according to recommendations such that the untapped potential of dose-saving imaging alternatives for specific diagnostic tasks can better be realized 34,78,79 .…”