Interpretation Of Test Results Research Articles

RT-qPCR Testing and Performance Metrics in the COVID-19 Era.

The COVID-19 pandemic highlighted the crucial role of diagnostic testing in managing infectious diseases, particularly through the use of reverse transcription-quantitative polymerase chain reaction (RT-qPCR) tests. RT-qPCR has been pivotal in detecting and quantifying viral RNA, enabling the identification and management of SARS-CoV-2 infections. However, despite its widespread use, there remains a notable gap in understanding fundamental diagnostic metrics such as sensitivity and specificity among many scientists and healthcare practitioners. This gap is not merely academic; it has profound implications for interpreting test results, making public health decisions, and affecting patient outcomes. This review aims to clarify the distinctions between laboratory- and field-based metrics in the context of RT-qPCR testing for SARS-CoV-2 and summarise the global efforts that led to the development and optimisation of these tests during the pandemic. It is intended to enhance the understanding of these fundamental concepts among scientists and healthcare professionals who may not be familiar with the nuances of diagnostic test evaluation. Such knowledge is crucial for accurately interpreting test results, making informed public health decisions, and ultimately managing infectious disease outbreaks more effectively.

The incidence of lung cancer amongst primary care chest radiograph referrals; an evaluation of national and local datasets within the UK.

To determine the incidence of lung cancer amongst primary care referrals for investigation with a chest radiograph (CXR). Retrospective evaluation of datasets from the national Clinical Practice Research Datalink (CPRD) and from a single large regional centre. Data was extracted for cohorts of consecutive adults aged over 40-yrs for whom a CXR had been performed between 2016 and 2018. Using cancer registry data, the incidence of lung cancer within a two-years of the CXR referral and the variations with age, gender and smoking status were evaluated. A total of 291 294 CXR events were evaluated from the combined datasets. The incidence of lung cancer amongst GP CXR referrals was 1.4% in CPRD with a consistent correlation with increasing age and smoking status. The incidence of lung cancer within two-years of the CXR varied between 0.03% (95%CI 0.0-0.1) amongst never smokers aged 40-45 years to 4.8% (95%CI 4.2-5.5) amongst current-smokers aged 70-75 years. The findings were similar for the single large centre data, although cancer incidence was higher. A simple estimation and stratification of the risk of lung cancer amongst primary care referrals for investigation with a CXR is possible using age and smoking status. This is the first estimate of the incidence of lung cancer amongst primary care CXR referrals and a demonstration of how the demographic information contained within a request could be used to optimise investigations and interpret test results.

Factors associated with an inconclusive result from commercial homologous recombination deficiency testing in ovarian cancer.

Homologous recombination deficiency (HRD) testing is used to determine the appropriateness of poly ADP-ribose polymerase inhibitors for patients with epithelial ovarian cancer and no germline/somatic BRCA1/2 alterations. Myriad MyChoice CDx reports a genomic instability score (GIS) to quantify the level of HRD, with a positive score defined as ≥42. The authors sought to define factors associated with obtaining an inconclusive HRD test result. GIS was retrieved for patients at their institution with epithelial ovarian cancer without germline/somatic BRCA1/2 deleterious alterations who underwent HRD testing from April 2020-August 2023. Clinical data were abstracted from the medical record. Of 477 HRD test results identified, 57 (12%) were inconclusive. High-grade serous ovarian cancers had higher GIS than other histologic types (median 29 vs. 21, p<.001). Most HRD cases were of high-grade serous histology; no cases with clear cell or endometrioid histology were HRD-positive. On univariate analysis, interval versus primary cytoreductive surgery, other specimen sources versus surgical specimens, and chemotherapy exposure were risk factors for inconclusive HRD testing. On multivariable analysis, chemotherapy exposure, and tissue source were associated with an inconclusive test result, with surgical specimens more likely to yield a conclusive result than other sources (biopsy, cytology, other). Age, stage, self-reported race, and histology were not associated with an inconclusive result. Surgical tissue was more likely to yield a conclusive HRD test result versus other sources of epithelial ovarian cancer tissue acquisition. When feasible, laparoscopic biopsy before initiation of neoadjuvant chemotherapy may increase the likelihood of obtaining interpretable HRD test results.

2144 Improving PA students confidence in managing geriatric patients with a bespoke teaching programme and a novel bleep simulation

Abstract Introduction BGS reports in its ‘Case for more Geriatricians’ that the number of people age over 85 is set to double by 2045. As well as Geriatric specific policies in the Ageing Well programme of the NHS Longterm Workforce Plan there are plans to expand the number of allied health professionals including Physician Associates (PA). We set out to improve PA students’ knowledge of and confidence in managing geriatric patients with a bespoke teaching programme culminating in a novel bleep simulation. Methods We identified the students’ needs with a preliminary survey and then created a teaching programme on medical topics and issues common to geriatric wards with weekly lectures and small group work. The programme culminated in a bleep simulation where students were contacted via bleep to come to different parts of the medical education centre and respond to scenarios which would be common on geriatric wards. These included reviewing unwell patients and issues such as aspiration, constipation and urinary retention. The students were required to amend or create prescriptions and interpret test results with access to the BNF and relevant local guidelines. Results Students were asked how useful the simulation was and how much it had improved their confidence in working on geriatric wards. The average score for both statements was greater than 9/10. The students were asked before and after the simulation how confident they were responding to bleeps and managing clinical scenarios in geriatric patients. Both scores doubled following the simulation to 6.7/10 (from 2.5 and 3.3 respectively). Conclusion The Faculty of Physician Associates curriculum does not necessitate placements in geriatrics and its matrix of core clinical conditions does not include any specific to geriatrics. Through a bespoke teaching programme and a novel bleep simulation we increased PA students’ confidence in managing geriatric patients.

Test-retest reliability, practice effects and estimates of change: A study on the Mindmore digital cognitive assessment tool.

The present study aimed to establish test-retest reliability and investigate practice effects of the Mindmore cognitive assessment tool, a digital adaptation of traditional pencil and paper tests designed for self-administration. Additionally, normative change scores for the most frequently used tests were derived. A total of 149 healthy Swedish adults (aged 20-79) completed the test battery twice, 1 month apart. The battery assessed attention and processing speed, memory, language, visuospatial functions, and executive functions. Test-retest reliability, measured by ICC and Spearman coefficients, and practice effects were estimated for 22 main-scores and 33 sub-scores. Regression models were used to assess change in performance while controlling for demographics, computer equipment, testing location (online or in-laboratory) and baseline performance for 12 main-scores and nine sub-scores. Test-retest reliability was good for 11 main-scores (≥0.70), satisfactory for five (0.60-0.69), and minimal for six (<0.60) albeit three having satisfactory sub-scores. Practice effects were observed for tests with a major speed component, but not for reaction time, sustained attention, verbal memory and naming (alternate forms), nor visuospatial functions. Trackpad negatively influenced change for one test. Demographics and testing location did not significantly affect the change scores. Our study provides support for test-retest reliability and practice effects of the Mindmore cognitive assessment tool which were comparable to those of traditional tests. These findings, together with the normative change scores, can aid researchers and clinicians in interpreting test results and distinguishing between normal variations in performance and changes indicative of clinical impairment.

Detection of tomato brown rugose fruit virus in environmental residues: The importance of contextualizing test results

AbstractTomato brown rugose fruit virus (ToBRFV) is regulated as a quarantine pest in many countries worldwide. To assess whether ToBRFV is present in cultivations, plants or seed lots, testing is required. The interpretation of test results, however, can be challenging. Reverse transcription‐quantitative (real‐time) PCR results, even though considered “positive”, may not always signify plant infection or indicate the presence of infectious virus, but could be due to the presence of viral residues in the environment. Here, case studies from the Netherlands, Belgium, and the United Kingdom address questions regarding the detection of ToBRFV in various settings, and the infectiousness of ToBRFV‐positive samples. These exploratory analyses demonstrate widespread detection of ToBRFV in diverse samples and environments. ToBRFV was detected inside and around greenhouses with no prior history of ToBRFV infection, and on different materials and surfaces, including those that were untouched by individuals, plants or objects. This suggested the dispersal of viral residues through aerosols. ToBRFV or its residues were more often detected in regions with nearby tomato production, yet were also found in a wider environment extending beyond infected crops. ToBRFV originating from environmental contamination may or may not be infectious, adding complexity to decision‐making in response to positive test results. Contextual information, such as the origin of the sample and the likelihood of residues from prior cultivations and/or the broader environment, is important for interpreting test results. A nuanced approach is crucial to correctly interpret ToBRFV test results, necessitating further research to support risk assessment.

Diagnostic Accuracy of the Abbott BinaxNOW COVID-19 Antigen Card Test, Puerto Rico.

The COVID-19 pandemic underscored the need for rapid and accurate diagnostic tools. In August 2020, the Abbott BinaxNOW COVID-19 Antigen Card test became available as a timely and affordable alternative for SARS-CoV-2 molecular testing, but its performance may vary due to factors including timing and symptomatology. This study evaluates BinaxNOW diagnostic performance in diverse epidemiological contexts. Using RT-PCR as reference, we assessed performance of the BinaxNOW COVID-19 test for SARS-CoV-2 detection in anterior nasal swabs from participants of two studies in Puerto Rico from December 2020 to May 2023. Test performance was assessed by days post symptom onset, collection strategy, vaccination status, symptomatology, repeated testing, and RT-PCR cycle threshold (Ct) values. BinaxNOW demonstrated an overall sensitivity of 84.1% and specificity of 98.8%. Sensitivity peaked within 1-6 days after symptom onset (93.2%) and was higher for symptomatic (86.3%) than asymptomatic (67.3%) participants. Sensitivity declined over the course of infection, dropping from 96.3% in the initial test to 48.4% in testing performed 7-14 days later. BinaxNOW showed 99.5% sensitivity in participants with low Ct values (≤ 25) but lower sensitivity (18.2%) for participants with higher Cts (36-40). BinaxNOW demonstrated high sensitivity and specificity, particularly in early-stage infections and symptomatic participants. Insituations where test sensitivity is crucial for clinical decision-making, nucleic acid amplification tests are preferred. These findings highlight the importance of considering clinical and epidemiological context when interpreting test results and emphasize the need for ongoing research to adapt testing strategies to emerging SARS-CoV-2 variants.

The hidden work of general practitioners: An ethnography

High quality primary care is a foundational element of effective health services. Internationally, primary care physicians (general practitioners (GPs), family doctors) are experiencing significant workload pressures. How non-patient-facing work contributes to these pressures and what constitutes this work is poorly understood and often unrecognised and undervalued by patients, policy makers, and even clinicians engaged in it. This paper examines non-patient-facing work ethnographically, informed by practice theory, the Listening Guide, and empirical ethics. Ethnographic observations (104 h), in-depth interviews (n = 16; 8 with GPs and 8 with other primary care staff) and reflexive workshops were conducted in two general practices in England. Our analysis shows that ‘hidden work’ was integral to direct patient care, involving diverse clinical practices such as: interpreting test results; crafting referrals; and accepting interruptions from clinical colleagues. We suggest the term ‘hidden care work’ more accurately reflects the care-ful nature of this work, which was laden with ambiguity and clinical uncertainty. Completing hidden care work outside of expected working hours was normalised, creating feelings of inefficiency, and exacerbating workload pressure. Pushing tasks forward into an imagined future (when conditions might allow its completion) commonly led to overspill into GPs' own time. GPs experienced tension between their desire to provide safe, continuous, ‘caring’ care and the desire to work a manageable day, in a context of increasing demand and burgeoning complexity.

Serum GFAP levels correlate with astrocyte reactivity, post-mortem brain atrophy and neurofibrillary tangles.

Glial fibrillary acidic protein (GFAP), a proxy of astrocyte reactivity, has been proposed as biomarker of Alzheimer's disease. However, there is limited information about the correlation between blood biomarkers and post-mortem neuropathology. In a single-centre prospective clinicopathological cohort of 139 dementia patients, for which the time-frame between GFAP level determination and neuropathological assessment was exceptionally short (on average 139 days), we analysed this biomarker, measured at three time points, in relation to proxies of disease progression such as cognitive decline and brain weight. Most importantly, we investigated the use of blood GFAP to detect the neuropathological hallmarks of Alzheimer's disease, while accounting for potential influences of the most frequent brain co-pathologies. The main findings demonstrated an association between serum GFAP level and post-mortem tau pathology (β = 12.85; P < 0.001) that was independent of amyloid deposits (β = 13.23; P = 0.02). A mediation analysis provided additional support for the role of astrocytic activation as a link between amyloid and tau pathology in Alzheimer's disease. Furthermore, a negative correlation was observed between pre-mortem serum GFAP and brain weight at post-mortem (r = -0.35; P < 0.001). This finding, together with evidence of a negative correlation with cognitive assessments (r = -0.27; P = 0.005), supports the role of GFAP as a biomarker for disease monitoring, even in the late phases of Alzheimer's disease. Moreover, the diagnostic performance of GFAP in advanced dementia patients was explored, and its discriminative power (area under the receiver operator characteristic curve at baseline = 0.91) in differentiating neuropathologically-confirmed Alzheimer's disease dementias from non-Alzheimer's disease dementias was determined, despite the challenging scenario of advanced age and frequent co-pathologies in these patients. Independently of Alzheimer's disease, serum GFAP levels were shown to be associated with two other pathologies targeting the temporal lobes-hippocampal sclerosis (β = 3.64; P = 0.03) and argyrophilic grain disease (β = -6.11; P = 0.02). Finally, serum GFAP levels were revealed to be correlated with astrocyte reactivity, using the brain GFAP-immunostained area as a proxy (ρ = 0.21; P = 0.02). Our results contribute to increasing evidence suggesting a role for blood GFAP as an Alzheimer's disease biomarker, and the findings offer mechanistic insights into the relationship between blood GFAP and Alzheimer's disease neuropathology, highlighting its ties with tau burden. Moreover, the data highlighting an independent association between serum GFAP levels and other neuropathological lesions provide information for clinicians to consider when interpreting test results. The longitudinal design and correlation with post-mortem data reinforce the robustness of our findings. However, studies correlating blood biomarkers and neuropathological assessments are still scant, and further research is needed to replicate and validate these results in diverse populations.

Epistemic conflict and sensemaking in elementary students' navigation of an engineering design task

AbstractAn understanding of how sensemaking unfolds when elementary students engage in engineering design tasks is crucial to advancing engineering teaching and learning at K‐12 levels. Sensemaking has been widely studied in the context of science as a discipline. In this paper, we seek to contribute to the more nascent efforts to build theory about the characteristics of sensemaking in elementary school engineering. We report on an interpretive case study of a 3rd grade student team who worked with minimal adult intervention to design a solution to an engineering challenge. Considering the entire trajectory of their design process, from the given problem to the solution, we observed that they navigated through multiple epistemic conflicts while making decisions that informed their final solution. We found that these conflicts served as opportunities for sensemaking and that exploring how the students resolved conflicts shed light on their sensemaking processes. Analysis of the team's navigation through epistemic conflicts to come to a design decision helped identify two distinct kinds of engineering sensemaking: student engagement in functional reasoning as they suggested design ideas, and student engagement in mechanistic reasoning as they interpreted test results. Both processes facilitated knowledge building, which in turn supported students' engineering design decisions.

An Introduction to Statistics for Librarians (Part Three): An Introduction to Statistical Tests

In the previous two columns, types of data, central tendency and distribution were discussed. This installment will build upon that content and explore various statistical tests. Three scenarios are introduced to illustrate how tests can be selected based on the type of data, the number of groups, and the distribution of the data. The column discusses interpreting test results, including challenges around establishing causation and the potential overreliance on p-values.

A survey into the current fitness testing practices of elite male soccer practitioners: from assessment to communicating results.

This study provides insight into the current fitness testing practices in elite male soccer. One hundred and two practitioners from professional soccer leagues across 24 countries completed an online survey comprising 29 questions, with five sections: a) background information, b) testing selection, c) testing implementation, d) data analysis, and e) data reporting. Frequency analysis was used to evaluate the responses to fixed response questions and thematic analysis was used for open-ended questions to generate clear and distinct themes. Strength (85%) and aerobic capacity (82%) represent the most frequently assessed physical qualities. Scientific literature (80%) is the most influential factor in testing selection and practitioners conduct fitness testing less frequently than their perceived ideal frequency per season (3.6 ± 2 vs. 4.5 ± 2). Time and competitive schedule were the greatest barriers to fitness testing administration. Practitioners mostly used a 'hybrid' approach (45%) to fitness testing, blending 'traditional' (i.e., a day dedicated to testing) and 'integrated' (i.e., testing within regular training sessions) methods. Microsoft Excel is the most used software for data analysis (95%) and visualization (79%). An equal use of the combination of best and mean scores of multiple trials (44%) and the best score (42%) was reported. Comparing a player's test performance with previous scores (89%) was the most common method for interpreting test results. However, only 38% considered measurement error. Digital displays and verbal feedback are the most common data reporting methods, with different data reporting processes for coaches and players. Practitioners can use data and findings from this study to inform their current testing practices and researchers to further identify areas for investigation, with the overarching aim of developing the field of fitness testing in elite male soccer.

Biowaiver as a Bioequivalence Study Option

SCIENTIFIC RELEVANCE. Biowaiver is a procedure for establishing the bioequivalence of generic and reference products without in vivo studies. Regulatory requirements for this procedure, as described in a variety of documents, differ in certain features and aspects. These differences need to be analysed.AIM. The aim was to compare international and Russian regulatory approaches to the Biopharmaceutics Classification System-based biowaivers, provide recommendations on comparative dissolution testing, and outline opportunities for streamlining the regulatory framework of the Eurasian Economic Union (EAEU).DISCUSSION. In this article, the authors analyse biowaiver requirements and describe procedures for assessing the permeability and pH-dependent solubility of medicines, comparing dissolution profiles in various media that simulate the gastrointestinal environment, and interpreting test results. This paper shows the role of excipients in the solubility and permeability of an active substance.CONCLUSIONS. The authors recommend a methodological approach to the biowaiver procedure for replacing in vivo bioequivalence studies with in vitro tests under the current EAEU regulatory framework and list the characteristics of medicines that limit the applicability of the procedure. In conclusion, this article provides a rationale for harmonising the existing guidelines and requirements.

Oral mucosal disease: dilemmas and challenges in general dental practice

Oral medicine (OM) is a recognised component of all UK undergraduate dental programmes and practising dentists are expected to safely investigate and manage patients presenting with oral mucosal disease. Delivering OM care for patients in a general dental practice setting does however come with a number of challenges and dilemmas for practitioners.General dental practitioners may be limited in their ability to arrange diagnostic tests such as biopsies or blood tests, important in reaching a definitive OM diagnosis. Lack of operator skill or lack of access to appropriate laboratory facilities to process diagnostic samples will likely contribute to this. In addition, general dental practitioners may feel underconfident to reliably interpret test results. Management of OM patients can also be time-consuming and may not generate a significant remunerative reward under current NHS payment systems.OM is a subject that overlaps with several medical specialities, and up until 2010, required dual qualification in both undergraduate dentistry and medicine. Practitioners who have not undertaken OM training beyond undergraduate dentistry may lack confidence with the subject, and fear of misjudging a lesion of concern will certainly prompt referrals from primary care into hospital-based OM clinics.

CDC Laboratory Recommendations for Syphilis Testing, United States, 2024.

This report provides new CDC recommendations for tests that can support a diagnosis of syphilis, including serologic testing and methods for the identification of the causative agent Treponema pallidum. These comprehensive recommendations are the first published by CDC on laboratory testing for syphilis, which has traditionally been based on serologic algorithms to detect a humoral immune response to T. pallidum. These tests can be divided into nontreponemal and treponemal tests depending on whether they detect antibodies that are broadly reactive to lipoidal antigens shared by both host and T. pallidum or antibodies specific to T. pallidum, respectively. Both types of tests must be used in conjunction to help distinguish between an untreated infection or a past infection that has been successfully treated. Newer serologic tests allow for laboratory automation but must be used in an algorithm, which also can involve older manual serologic tests. Direct detection of T. pallidum continues to evolve from microscopic examination of material from lesions for visualization of T. pallidum to molecular detection of the organism. Limited point-of-care tests for syphilis are available in the United States; increased availability of point-of-care tests that are sensitive and specific could facilitate expansion of screening programs and reduce the time from test result to treatment. These recommendations are intended for use by clinical laboratory directors, laboratory staff, clinicians, and disease control personnel who must choose among the multiple available testing methods, establish standard operating procedures for collecting and processing specimens, interpret test results for laboratory reporting, and counsel and treat patients. Future revisions to these recommendations will be based on new research or technologic advancements for syphilis clinical laboratory science.

Residents' Knowledge regarding Recreational Drug Screening Immunoassays at a Swiss Hospital Group.

In case of suspected acute recreational drug toxicity, immunoassays are commonly used as diagnostic tools. Although easy to handle, understanding of their limitations is necessary for a correct interpretation of the results. The aim of this project was to investigate residents' knowledge regarding drug screening immunoassays at a Swiss hospital group. All residents of a large hospital group in Switzerland were invited by e-mail to participate in an anonymous survey. Following ten multiple choice questions on drug screening tests, the participants were also asked about their demographics, whether they used drug screening tests on a regular basis, and how confident they felt in their ability to interpret test results. The ten knowledge questions were answered by 110 of the 1026 residents (11%). Among the 108 participants with available demographics, 90% were 25-35 years old, 63% were female, and 70% were at least in their 4th year of residency. The median score of correct answers was 4 out of 10 (range 0-7) and in 50% of the questions, the correct answer was the most frequently selected response. No significant differences in the knowledge scores were found based on the training, confidence level, or the frequency of drug tests used in daily work. This survey revealed widespread knowledge gaps among residents regarding the interpretation of immunoassay-based drug test results. These findings can be used to implement educational measures on this topic and might provide a basis for targeted information on common pitfalls to be included in laboratory reports.

Age-Specific Reference Values for Amino Acid Content in Dried Blood Spots in Children in Western Kazakhstan, Measured by Tandem Mass Spectrometry

Measuring the level of amino acids in the blood is one of the stages in the early diagnosis of inborn errors of metabolism (IEM), implying timely initiation of therapeutic measures. Tandem mass spectrometry (MS/MS) is now replacing traditional IEM screening methods. Dried blood spot amino acid reference values developed for the pediatric population are crucial for interpreting test results and diagnosing aminoacidopathies. The study aims to establish reference values for amino acid (AAs) concentrations in samples of dried blood spots from newborns in Western Kazakhstan using LC-MS/MS (liquid chromatography-tandem mass spectrometry) technology. Methods: The cross-sectional study included 250 healthy newborns of Western Kazakhstan aged 1-3 days, born at term and breastfed, 49.2% male and 50.2% female. To establish the age-specific reference values for AAs, newborns were divided into three groups: (1) 1 day, (2) 2 days, and (3) 3 days. Blood samples on Guthrie cards were collected on days 1–3 of life and quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Nonparametric statistical approaches were used to generate the 2.5th–97.5th percentile distributions for newborns. Results: 3 of the 15 DBS amino acid distributions were dependent on gender. There was a statistically significant difference in the mean level of alanine, citrulline, and glutamic acid in males and females. The highest values were determined in the female group. Age-related differences in glutamic acid, leucine, ornithine, tyrosine, and valine concentration levels were observed. No significant correlations were found between the concentrations of 15 amino acids in dried blood spots and the body weight of newborns. Conclusion: The present study established amino acid concentrations that can be utilized as reference standards in Kazakhstan's newborn screening program for inherited metabolic diseases.

Reading Test Construction of Efl Teachers In Islamic Senior High Schools

This study aims to describe the process of constructing reading test conducted by English teachers from various Islamic high school at Binuang. This study used a qualitative approach with a descriptive research design. The subjects in this study were six English teachers from different Islamic High Schools at Binuang District, West Sulawesi. The instruments in this study were the researchers herself and were assisted through data collection tools namely interview guides and documentation. Data analysis begins with data collection then reduced and categorized, data presentation and concluded. The findings showed that there are five steps that English teachers go through in constructing good reading tests. This step was developed from theory (Brown 2004; Sharma, 2017 &amp; Suwarto, 2017) namely starting from the planning stage, writing test items, standardization tests, revising and interpreting test results or scoring

Online clinical tools to support the use of new plasma biomarker diagnostic technology in the assessment of Alzheimer's disease: a narrative review.

Recent advances in new diagnostic technologies for Alzheimer's disease have improved the speed and precision of diagnosis. However, accessing the potential benefits of this technology poses challenges for clinicians, such as deciding whether it is clinically appropriate to order a diagnostic test, which specific test or tests to order and how to interpret test results and communicate these to the patient and their caregiver. Tools to support decision-making could provide additional structure and information to the clinical assessment process. These tools could be accessed online, and such 'e-tools' can provide an interactive interface to support patients and clinicians in the use of new diagnostic technologies for Alzheimer's disease. We performed a narrative review of the literature to synthesize information available on this research topic. Relevant studies that provide an understanding of how these online tools could be used to optimize the clinical utility of diagnostic technology were identified. Based on these, we discuss the ways in which e-tools have been used to assist in the diagnosis of Alzheimer's disease and propose recommendations for future research to aid further development.

Development of a Cloud-Based Image Processing Health Checkup System for Multi-Item Urine Analysis.

With the busy pace of modern life, an increasing number of people are afflicted by lifestyle diseases. Going directly to the hospital for medical checks is not only time-consuming but also costly. Fortunately, the emergence of rapid tests has alleviated this burden. Accurately interpreting test results is extremely important; misinterpreting the results of rapid tests could lead to delayed medical treatment. Given that URS-10 serve as a rapid test capable of detecting 10 distinct parameters in urine samples, the results of assessing these parameters can offer insights into the subject's physiological condition. These parameters encompass aspects such as metabolism, renal function, diabetes, urinary tract disorders, hemolytic diseases, and acid-base balance, among others. Although the operational procedure is straightforward, the variegated color changes exhibited in the outcomes of individual parameters render it challenging for lay users to deduce causal factors solely from color variations. Moreover, potential misinterpretations could arise due to visual discrepancies. In this study, we successfully developed a cloud-based health checkup system that can be used in an indoor environment. The system is used by placing a URS-10 test strip on a colorimetric board developed for this study, then using a smartphone application to take images which are uploaded to a server for cloud computing. Finally, the interpretation results are stored in the cloud and sent back to the smartphone to be checked by the user. Furthermore, to confirm whether the color calibration technology can eliminate color differences between different cameras, and also whether the colorimetric board and the urine test strips can perform color comparisons correctly in different light intensity environments, indoor environments that could simulate a specific light intensity were established for testing purposes. When comparing the experimental results to real test strips, only two groups failed to reach an identification success rate of 100%, and in both of these cases the success rate reached 95%. The experimental results confirmed that the system developed in this study was able to eliminate color differences between camera devices and could be used without special technical requirements or training.