3D virtual reconstructions at the service of computer assisted archaeological measurements

Technological advances have enabled photogrammetric and surveying methods to produce recording materials surpassing the traditional line drawings in accuracy and completeness. These methodologies may offer products not possible in the past. This paper relates the difficult experience of collecting, archiving, processing, combining, visualizing and exploiting data from a multitude of sources to make accurate geometric records of monuments, implementing the most contemporary, innovative and technologically advanced methods. Issues analysed include collecting and processing field data from a variety of sources and their respective properties, but also the production of different end products, vector and raster, with the main emphasis on complex 3D visualizations. Different approaches are assessed for their usefulness and potential accuracy. Examples covering a variety of Greek and Cypriot monuments are presented, which are acquired from the rich experience of the archaeological surveys of the Laboratory of Photogrammetry of NTUA

Study on quality in 3D digitisation of tangible cultural heritage.

Following the implementation of the Virtual Multimodal Museum (ViMM) project, which finished in March 2019, the European Commission issued a Declaration on Cooperation on Advancing Digitisation of Cultural Heritage during the Digital Day in April 2019. One year later, in April 2020, the European Commission (EC) launched a commercial call for tenders to develop a study on quality in 3D digitisation of tangible cultural heritage ("the study"). The tender theme is to acknowledge the increasing demand for internationally recognised standards for the holistic 3D documentation of Europe's rich cultural heritage (CH) and address the lack of standards. The study aims to map parameters, formats, standards, benchmarks, methodologies and guidelines relating to 3D digitisation of tangible cultural heritage, the different potential purposes or uses by type of tangible cultural heritage, and the degree of complexity of tangible cultural heritage. A team of researchers at the Cyprus University of Technology (CUT) leads a consortium of partners from industry and academia across Europe to conduct this unique study. This work-in-progress paper introduces the research's objectives and methodology, and presents some of its first results

HBIM for cultural heritage: the case study of Panayia Karmiotissa church

The authors acknowledge the support from EU ERA Chair MNEMOSYNE project, which received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 810857. The authors acknowledge the support from EU MSCA CHANGE project, which received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 813789. The authors thank the Bishopric of Limassol, the Karmiotissa Church Committee and the Department of Antiquities for permitting all rights and access to the Church of Panayia Karmiotissa.HBIM (Heritage Building Information Modelling) is used for the documentation of the Church of Panayia Karmiotissa, near Limassol, Cyprus. The HBIM model is based on the geometric information obtained by digital documentation of the monument. Using laser scanning and Structure for Motion photogrammetric techniques, exterior images were collected using a drone with a 20MP camera and the interior images were taken using an SLR 20 MP camera. Ground control points were used both externally and internally to geo-reference the images using SfM photogrammetry. A Z+F latest technology 3D laser scanner was utilized to scan both the exterior and interior of the church. The images were used in order to create a 3D reconstruction of the Church and used photogrammetry to generate a point cloud of the church and a 3D surface texture model with ortho-images. Following, the data generated by the laser scanner and photogrammetry was processed to create a 3D model to document the church using Heritage Building Information Modeling (HBIM). The main objective of this case study was to create an HBIM model of the Church of Panayia Karmiotissa to digitally register and holistically to document the monument. HBIM is an important tool for the multidisciplinary area of conservators, architects and in general engineer activities, as it provides virtual details that are useful for monitoring, preservation and restoration.The authors acknowledge the ‘EXCELSIOR’: ERATOSTHENES: EΧcellence Research Centre for Earth Surveillance and Space-Based Monitoring of the Environment H2020 Widespread Teaming project (www.excelsior2020.eu). The ‘EXCELSIOR’ project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No 857510, from the Government of the Republic of Cyprus through the Directorate General for the European Programmes, Coordination and Development and the Cyprus University of Technology

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

Correction to: Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

The original version of this article unfortunately contained a mistake

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat