Chest CT utilization in COVID-19: a dosimetric and diagnostic-quality study.

The purpose of this study is to look at the variations in chest computed tomography (CT) use, radiation dose and image quality in the 2019 novel coronavirus (COVID-19) pneumonia patients in Saudi Arabia. This is a retrospective study of 402 patients with COVID-19, who were treated between February and October 2021. Radiation dose was estimated using metrics of volume CT dose index (CTDIvol) and size-specific dose estimate (SSDE). The imaging performance of the CT scanners was evaluated by measuring different parameters, such as resolution and CT number uniformity, with an ACR-CT accreditation phantom. Expert radiologists assessed the diagnostic quality and occurrence of artefacts. For all of the image quality parameters tested, the majority of the scanner sites (80%) were found to be within the suggested acceptance limits. Ground-glass opacities were the most common finding in our patient sample (54%). On chest CT exams with typical appearance of COVID-19 pneumonia, the most respiratory motion artefacts (56.3%) were present, followed by those with indeterminate appearance (32.2%). There were significant differences in CT utilization, CTDIvol and SSDE across the collaborated sites. The use of CT scans and radiation doses varied in the COVID-19 patients, highlighting the optimizations of CT protocols at participating sites.

Cost-Effectiveness of Universal Screening for Blunt Cerebrovascular Injury: A Markov Analysis.

BACKGROUND: Blunt cerebrovascular injury (BCVI) is a significant cause of morbidity and mortality after blunt trauma. Numerous screening strategies exist, although which is used is institution- and physician-dependent. We sought to identify the most cost-effective screening strategy for BCVI, hypothesizing that universal screening would be optimal among the screening strategies studied. STUDY DESIGN: A Markov decision analysis model was used to compare the following screening strategies for identification of BCVI: (1) no screening; (2) Denver criteria; (3) extended Denver criteria; (4) Memphis criteria; and (5) universal screening. The base-case scenario modeled 50-year-old patients with blunt traumatic injury excluding isolated extremity injures. Patients with BCVI detected on imaging were assumed to be treated with antithrombotic therapy, subsequently decreasing risk of stroke and mortality. One-way sensitivity analyses were performed on key model inputs. A single-year horizon was used with an incremental cost-effectiveness ratio threshold of $100,000 per quality-adjusted life-year. RESULTS: The most cost-effective screening strategy for patients with blunt trauma among the strategies analyzed was universal screening. This method resulted in the lowest stroke rate, mortality, and cost, and highest quality-adjusted life-year. An estimated 3,506 strokes would be prevented annually as compared with extended Denver criteria (incremental cost-effectiveness ratio of $71,949 for universal screening vs incremental cost-effectiveness ratio of $12,736 for extended Denver criteria per quality-adjusted life-year gained) if universal screening were implemented in the US. In 1-way sensitivity analyses, universal screening was the optimal strategy when the incidence of BCVI was greater than 6%. CONCLUSIONS: This model suggests universal screening may be the cost-effective strategy for BCVI screening in blunt trauma for certain trauma centers. Trauma centers should develop institutional protocols that take into account individual BCVI rates.

Patient Education Materials Found via Google Search for Shoulder Arthroscopy Are Written at Too-High of a Reading Level.

Purpose: To evaluate the quality and correlation of readability on actionability and understandability of shoulder arthroscopy-related patient education materials (PEMs) found via a routine Google search. Methods: Two independent authors performed an online Google search with the term "shoulder arthroscopy." The first 5 pages of search results were then screened for PEMs. Journal articles, news articles, nontext materials, and unrelated websites were excluded. The readability of included resources was calculated using objective metrics: Flesch-Kincaid Grade Score, Simple Measure of Gobbledygook index, Coleman-Liau Index, and the Gunning Fog Index. Patient Education Material Assessment Tool for Printed Materials assessed for understandability and actionability. Associations between readability and actionability and understandability were determined using Spearman correlation and linear regression. Results: The searches returned 53 websites related to shoulder arthroscopy. A total of 34 (64%) met inclusion criteria. A high school reading level or greater was required to read the average PEM according to all scales used. The average PEM received a Patient Education Material Assessment Tool for Printed Materials score of 61.33 in understandability (range 18.75-89.47) and 55.59 points in actionability (range 16.67-83.33). An easily understood or actionable article would score at least 70 points. A moderate correlation was observed between readability and actionability on three of the scales used (r = 0.5, r = 0.59, r = 0.61). Conclusions: Most shoulder arthroscopy PEMs identified on Google are not written at a level that the average patient can read, understand, or act on (actionability). Clinical Relevance: Orthopaedic surgeons should be aware of the resources that patients use to obtain medical information. More accessible PEMs should be developed for patients undergoing shoulder arthroscopy to enhance comprehension of their condition and improve shared decision-making.

Positive Association Between Online Attention and the Bibliometric Impact of Shoulder Instability Publications.

Purpose: To obtain a quantifiable measure of the frequency with which a shoulder instability article is discussed online and the association with its corresponding bibliometric impact, based on the Scopus Cite Score (SCS) or Web of Science Impact Factor (WSIF). Methods: The top 100 most-mentioned articles on shoulder instability based on Altmetric Attention Score (AAS) were extracted from the Altmetric Database. Mentions within blogs, news articles and outlets, public policy, and social media platforms, such as Twitter and Facebook, were included. Study impact was assessed using SCS or WSIF. The degree of association between AAS and impact was determined using Spearman correlation, logarithmic regression, and multivariate regression. Results: The most common study designs were "Clinical Trial," with 52 articles (49.5%), "Systematic Review" with 16 articles (15.2%), and "Review" with 10 articles (9.5%). Twitter provided more online mentions than other platforms, with the average article being discussed 27.7 times (range 0-220 times). A significant positive effect (estimate = 2.616, P = .0075) was observed between the AAS and WSIF, based on the logarithmic regression. Multivariate regression revealed that blogs help raise both WSIF and SCS (estimate = 7.272, P < .05). Conclusions: Social media and other online platforms are a strong way to disseminate information to patients. A positive association was observed between overall online attention and the bibliometric impact of an article related to shoulder instability. Clinical trials related to shoulder instability that receive online mentions, especially discussion in blogs, are more likely to be cited in the future than their counterparts. Clinical Relevance: The results of our study can guide authors as they aim to disseminate their articles. Twitter may be used as a tool to reach patients who may not venture into academic journals with current peer-reviewed articles. Further, blogs may be used to reach academic audiences and raise bibliometric impact broadly.

AUTOMATED ESTIMATION OF PATIENT'S SIZE USING AUTOWED TOOL AND INDOSECT PROGRAM: A DOSIMETRIC STUDY FOR PAEDIATRIC HEAD CT EXAMINATIONS.

Size-specific dose estimate (SSDE), which can be calculated by measuring the effective diameter (De) or water equivalent diameter (Dw) of the patient, is one of the recent approaches for verifying the individual doses during computer tomography (CT) examinations. This work aimed to compare the Dw estimated by the AutoWED tool and IndoseCT software and to investigate CT axial (ARH) and paediatric head (PH) protocols used in southern Saudi Arabia to calculate the dose received by paediatric patients using metrics of volume CT dose index (CTDIvol) and SSDE. The distribution between the ARH and PH protocols was 57.8 and 42.2%, respectively. There was no significant difference in Dw values between the AutoWED tool and the IndoseCT program (0.13%). Including CT table or other objects during estimation of Dw can lead to variation up to 11.4%. The impact of selecting IndoseCT options to identify the border of the patient may be part of the explanation for these variations. A strong linear relationship was obtained between De and Dw in paediatric head size (R2 = 0.96). Using IndoseCT, for 0-1.5, 1.5-5 and 5.0-18 age groups (years), the Dw was found to be 13.2, 15.3 and 16.8 cm, respectively. The SSDE for the PH protocol was substantially lower than that of the ARH protocol. As a result, education of the individuals engaging in paediatric CT examinations is necessary for dose optimization.

Online Patient Education Materials for Common Sports Injuries Are Written at Too-High of a Reading Level: A Systematic Review.

Purpose: To determine the readability of online patient information for common sports injuries. Methods: A systematic search of the literature using PubMed/MEDLINE, Embase, and the CINAHL databases was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Studies were included if they (1) were published between 2000 and September 2020, (2) were English-language publications and complete studies from peer-reviewed journals, (3) evaluated online information directed toward patients with common sports injuries. Results: Eleven studies met inclusion criteria and were included. The mean Flesch-Kincaid Grade Level for online education information was 10.5, whereas the mean Flesch Reading Ease was 51.2, indicating existing health resources are written above the recommended readability grade level (no greater than a sixth-grade reading level). The mean DISCERN score was 41.5, indicating that the quality of information accessible to patients was fair. The accuracy of health content determined by the ACL-Specific Score was reported as moderate level (mean 8.85). Conclusions: This study demonstrates that online patient information regarding common sports injuries the does not match the readability recommendations of the American Medical Association and National Institutes of health. Clinical Relevance: Future health-related information should be written by qualified experts at a level that can be easily understood by patients of all health literacy levels. Surgeons should be more attentive to where patients get their information from and how they interpret it. Accurate, easy to understand educational tools can improve efforts to help patients identify misconceptions about treatment options, and to guide patients to choices that are consistent with their values.