Open Access Pub publishes peer-reviewed, free-to-read open-access articles. Showing
articles matching Visualization — open any to read the full text,
or download the PDF or XML.
Mar 2023
The visual presentation of the results of the analysis of cardio graphic information is an important element of the diagnostic process. The article discusses the issues of visualization of the state of the heart, notes the importance of a visual representation of the processes of the functioning of the heart for diagnosis. The Delaunay triangulation is considered and it is proved that on its basis it is possible to approximate an arbitrarily complex surface. An algorithm for constructing a surface model of the heart based on Delaunay triangulation has been developed. The issues of texture generation are covered in detail. The texture is a convenient tool for displaying the state ofthe heart, as it allows you to visually show the place of possible damage on the surface of the heart.
Feb 2026 DOI 10.14302/issn.2576-6694.jbbs-26-5964
The combination of ultrasonography (US) and cone beam computed tomography (CBCT) has been proposed as a multimodal imaging strategy capable of uniting realtime softtissue assessment with highresolution threedimensional visualization of osseous structures. This study critically evaluated whether such integration provides measurable diagnostic or workflow advantages in mandibular imaging. Despite strong theoretical justification, the combined use of US and CBCT failed to demonstrate clinically meaningful improvements in diagnostic accuracy, confidence, or efficiency when compared with CBCT alone. Fundamental physical mismatches, hardware incompatibilities, geometric constraints, and operatordependent variability limited the anticipated synergistic benefits. These negative findings underscore the importance of reporting unsuccessful integration attempts to guide future research and prevent premature clinical adoption of technically incompatible imaging paradigms.
Aug 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3498
The paper proposes a new visualization scheme for the registry of Covid-19 cases by calculating the mantissa of the registered ones, so there is no need of performing complicated mathematical calculations. As an example, six countries are randomly selected: Australia, Brazil, China, Colombia, Portugal and Venezuela. The results show that China is the only country that keeps the epidemic under control, while Australia begins a new outbreak after having previously controlled the epidemic. Colombia and Portugal show a very similar behavior of registered cases and, finally, we can see that Venezuela, Brazil, Portugal, and Colombia present a growth of cases that may trigger new outbreaks in the future. Results are obtained from data registered at Johns Hopkins University until July 18th, 2020.
Nov 2018 DOI 10.14302/issn.2768-0207.jbr-18-2175
Non–information technology (IT) professionals and nonexpert casual users are increasingly adopting self-service business intelligence (SSBI) tools (such as Tableau, Qlik, and Power BI) to create data visualization dashboards. This study identified the most relevant dashboard design principles for SSBI tool users. The research approach included organizing a focus group in which most of the participants were non-IT professionals in health care, extracting recommended principles from the literature, applying these recommended principles by using data on quality of diabetes care to design relevant dashboards, and proposing the following 5S dashboard design principle framework: 1) seeing both the forest and trees, 2) simplicity through self-selection, 3) simplicity through significance, 4) simplicity through synthesis, and 5) storytelling. The third and fourth principles are novel and provide solutions to decision-making problems (such as conflicting results from excessive and discordant indicators) encountered by health care professional in the public sector as well as in other domains. The 5S dashboard design principles are easily memorized and practical and thus enable non-IT professionals and nonexpert casual users to design insightful dashboards efficiently by using SSBI tools.
Jul 2017 DOI 10.14302/issn.2574-612X.ijpr-17-1543
Our own long term experiences as clinical teachers among undergraduate medical students have generated the interest to investigate the plausible connection between students’ study orientation and their learning experiences in small groups.The objective of the study was to assess the hypothesis whether learning in small groups may contribute to study motivation. Participants were 52 undergraduate medical students (10-12 in each group) in the primary health care course between 1st and 5th year during the spring term 2012. The questionnaires used were the Inventory of General studies (IGSO) for study orientation and IQ questionnaire for group learning. The data were analyzed by Bayesian network modeling. In this study, the application used was the Bayminer (www.BayMiner.com) non-linear visualization modeling software. Positive atmosphere in a small group increases study motivation and commitment and predicts mutual trust and gives space to new ideas, where contradictive views can raise interesting discussions. Based on Bayesian modeling it seems that the experience of motivational problems in the present studies may be an indicator of study alienation and connected with the perception of small group dysfunctionality.
Dec 2016 DOI 10.14302/issn.2379-8572.joa-16-1369
The purpose was to discover if medial branch blocks (MBBs) of the cervical spine can be used as a diagnostic tool to identify patients with somatosensory tinnitus. MBBs are a diagnostic tool to confirm the diagnosis facet joint pain in patients with neck pain. It is not known, if MBBs are also suitable for testing other symptoms than pain. However, the existence of neural connections between the auditory system and the cervical region can be assumed. Included were 22 consecutive patients presenting with tinnitus, who had received MBBs in a ten years’ period. Patients were tested with a MBB with bupivacaine and triamcinolone. Injections were performed with fluoroscopic visualization using established techniques. The mean follow-up time was 6.2 weeks. Tinnitus was analyzed through the global clinical impression of the patient. Seven patients (31.8 %) experienced a significant improvement of the tinnitus. In one patient a thermal radiofrequency neurotomy was done after positive response to two MBBs. The pain relief and a significant reduction of the tinnitus sustained at the follow-up examination 20 weeks after the denervation. No statistically significant difference was found in age, gender, duration of symptoms, additional neck pain or vertigo, or side or level of the intervention. This pilot study shows the feasibility to identify patients with somatosensory tinnitus with MBBs. Further studies with the primary intention on tinnitus are necessary to prove the significance of MBBs. After a positive response to MBBs, treatment with radiofrequency neurotomy is the rational consequence.