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  1. Article ; Online: A MODEL FOR EVALUATING THE USE OF IMAGING IN IMAGE-GUIDED INTERVENTIONAL PROCEDURES-POSSIBLE IMPLICATIONS ON OPTIMISATION OF RADIATION PROTECTION.

    Lundh, C / Ivarsson, J / Falkenberg, M / Båth, M / Almén, A

    Radiation protection dosimetry

    2021  Volume 195, Issue 3-4, Page(s) 139–144

    Abstract: The present study focuses on introducing the concept of optimisation and proposing a model, including evaluation of image quality, to be used in the clinical routines where image-guided intervention is being performed. The overall aim of the study was to ...

    Abstract The present study focuses on introducing the concept of optimisation and proposing a model, including evaluation of image quality, to be used in the clinical routines where image-guided intervention is being performed. The overall aim of the study was to develop a model for evaluating the use of imaging in X-ray-guided interventional procedures and its possible implications on optimisation of radiation protection. In the search for an adequate evaluation model, data from endovascular interventions of the aorta (EVAR procedures) were used. The procedure was schematically described in steps. Every imaging event was connected to the steps in the medical procedure and was also described with the purpose of the imaging event. Available technical, as well as procedural parameters, were studied and analysed. Data were collected from the X-ray equipment for 70 EVAR procedures and, out of these, 12 procedures were randomly selected to be recorded on video to understand the procedure better. It was possible to describe the EVAR procedures in a general way with explanations of the clinical purpose connected to each imaging event. Possible quality parameters of the procedure were identified for the imaging events (radiation dose, image quality). The model method still needs to be refined and will then be applied to clinical data and to other clinical procedures to test the validity.
    MeSH term(s) Endovascular Procedures ; Fluoroscopy ; Radiation Dosage ; Radiation Protection ; Radiography, Interventional ; X-Rays
    Language English
    Publishing date 2021-04-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 225912-6
    ISSN 1742-3406 ; 0144-8420
    ISSN (online) 1742-3406
    ISSN 0144-8420
    DOI 10.1093/rpd/ncab040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Blueberry Supplementation and Skin Health.

    Ivarsson, John / Pecorelli, Alessandra / Lila, Mary Ann / Valacchi, Giuseppe

    Antioxidants (Basel, Switzerland)

    2023  Volume 12, Issue 6

    Abstract: Environmental stressors such as air pollutants, ozone, and UV radiation are among the most noxious outdoor stressors affecting human skin and leading to premature skin aging. To prevent the extrinsic aging, the skin is equipped with an effective ... ...

    Abstract Environmental stressors such as air pollutants, ozone, and UV radiation are among the most noxious outdoor stressors affecting human skin and leading to premature skin aging. To prevent the extrinsic aging, the skin is equipped with an effective defensive system. However, cutaneous defense mechanisms can be overwhelmed through chronic exposure to environmental pollutants. Recent studies have suggested that the topical usage of natural compounds, such as blueberries, could be a good strategy to prevent skin damage from the environment. Indeed, blueberries contain bioactive compounds found to induce an active skin response against the environmental noxious effects. In this review, results from recent studies on this topic are discussed in order to build the argument for blueberries to possibly be an effective agent for skin health. In addition, we hope to highlight the need for further research to elucidate the mechanisms behind the use of both topical application and dietary supplementation with blueberries to bolster cutaneous systems and defensive mechanisms.
    Language English
    Publishing date 2023-06-12
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2704216-9
    ISSN 2076-3921
    ISSN 2076-3921
    DOI 10.3390/antiox12061261
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  3. Article ; Online: Role of requests and communication breakdowns in the coordination of teamwork: a video-based observational study of hybrid operating rooms.

    Ivarsson, Jonas / Åberg, Mikaela

    BMJ open

    2020  Volume 10, Issue 5, Page(s) e035194

    Abstract: Objectives: This study investigated the functional role of 'requests' in the coordination of surgical activities in the operating room (OR). A secondary aim was to describe, closely, instances of potential miscommunication to scrutinise how so-called ... ...

    Abstract Objectives: This study investigated the functional role of 'requests' in the coordination of surgical activities in the operating room (OR). A secondary aim was to describe, closely, instances of potential miscommunication to scrutinise how so-called conversational
    Design: Non-participant video-based observations.
    Setting: Team coordination around image acquisitions (digital subtraction angiography) done during endovascular aortic repair (EVAR) procedures in a hybrid OR.
    Methods: The study followed and documented a total of 72 EVAR procedures, out of which 12 were video-recorded (58 hours). The results were based on 12 teams operating during these recorded surgeries and specifically targeted all sequences involving controlled apnoea. In total, 115 sequences were analysed within the theoretical framework of conversation analysis.
    Results: The results indicated a simple structure of communication that can enable the successful coordination of work between different team members. Central to this analysis was the distinction between immediate requests and pre-requests. The results also showed how conversational repairs became key in establishing joint understanding and, therefore, how they can function as crucial resources in safety management operations.
    Conclusion: The results suggest the possibility of devising an interactional framework to minimise problems with communication, thereby enabling the advancement of patient safety. By making the distinction between different types of requests explicit, certain ambiguities can be mitigated and some misunderstandings avoided. One way to accomplish this practically would be to tie various actions to clearer and more distinct forms of expression.
    MeSH term(s) Communication ; Communications Media ; Humans ; Operating Rooms ; Patient Care Team ; Patient Safety
    Language English
    Publishing date 2020-05-26
    Publishing country England
    Document type Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 2599832-8
    ISSN 2044-6055 ; 2044-6055
    ISSN (online) 2044-6055
    ISSN 2044-6055
    DOI 10.1136/bmjopen-2019-035194
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Blueberry Supplementation and Skin Health

    Ivarsson, John / Pecorelli, Alessandra / Lila, Mary Ann / Valacchi, Giuseppe

    Antioxidants. 2023 June 12, v. 12, no. 6

    2023  

    Abstract: Environmental stressors such as air pollutants, ozone, and UV radiation are among the most noxious outdoor stressors affecting human skin and leading to premature skin aging. To prevent the extrinsic aging, the skin is equipped with an effective ... ...

    Abstract Environmental stressors such as air pollutants, ozone, and UV radiation are among the most noxious outdoor stressors affecting human skin and leading to premature skin aging. To prevent the extrinsic aging, the skin is equipped with an effective defensive system. However, cutaneous defense mechanisms can be overwhelmed through chronic exposure to environmental pollutants. Recent studies have suggested that the topical usage of natural compounds, such as blueberries, could be a good strategy to prevent skin damage from the environment. Indeed, blueberries contain bioactive compounds found to induce an active skin response against the environmental noxious effects. In this review, results from recent studies on this topic are discussed in order to build the argument for blueberries to possibly be an effective agent for skin health. In addition, we hope to highlight the need for further research to elucidate the mechanisms behind the use of both topical application and dietary supplementation with blueberries to bolster cutaneous systems and defensive mechanisms.
    Keywords air ; blueberries ; chronic exposure ; dietary supplements ; ozone ; skin (animal) ; topical application ; ultraviolet radiation
    Language English
    Dates of publication 2023-0612
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2704216-9
    ISSN 2076-3921
    ISSN 2076-3921
    DOI 10.3390/antiox12061261
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Comparison of Pollutant Effects on Cutaneous Inflammasomes Activation.

    Ivarsson, John / Ferrara, Francesca / Vallese, Andrea / Guiotto, Anna / Colella, Sante / Pecorelli, Alessandra / Valacchi, Giuseppe

    International journal of molecular sciences

    2023  Volume 24, Issue 23

    Abstract: The skin is the outermost layer of the body and, therefore, is exposed to a variety of stressors, such as environmental pollutants, known to cause oxinflammatory reactions involved in the exacerbation of several skin conditions. Today, inflammasomes are ... ...

    Abstract The skin is the outermost layer of the body and, therefore, is exposed to a variety of stressors, such as environmental pollutants, known to cause oxinflammatory reactions involved in the exacerbation of several skin conditions. Today, inflammasomes are recognized as important modulators of the cutaneous inflammatory status in response to air pollutants and ultraviolet (UV) light exposure. In this study, human skin explants were exposed to the best-recognized air pollutants, such as microplastics (MP), cigarette smoke (CS), diesel engine exhaust (DEE), ozone (O
    MeSH term(s) Humans ; Inflammasomes/metabolism ; Environmental Pollutants/metabolism ; Plastics/metabolism ; Skin/metabolism ; Air Pollutants/toxicity
    Chemical Substances Inflammasomes ; Environmental Pollutants ; Plastics ; Air Pollutants
    Language English
    Publishing date 2023-11-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms242316674
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: ALIGNING VIDEO-AND STRUCTURED DATA FOR IMAGING OPTIMISATION.

    Ivarsson, Jonas / Almén, Anja / Falkenberg, Mårten / Lundh, Charlotta / Båth, Magnus

    Radiation protection dosimetry

    2021  Volume 195, Issue 3-4, Page(s) 134–138

    Abstract: Imaging optimisation can benefit from combining structured data with qualitative data in the form of audio and video recordings. Since video is complex to work with, there is a need to find a workable solution that minimises the additional time ... ...

    Abstract Imaging optimisation can benefit from combining structured data with qualitative data in the form of audio and video recordings. Since video is complex to work with, there is a need to find a workable solution that minimises the additional time investment. The purpose of the paper is to outline a general workflow that can begin to address this issue. What is described is a data management process comprising the three steps of collection, mining and contextualisation. This process offers a way to work systematically and at a large scale without succumbing to the context loss of statistical methods. The proposed workflow effectively combines the video and structured data to enable a new level of insights in the optimisation process.
    MeSH term(s) Diagnostic Imaging ; Video Recording
    Language English
    Publishing date 2021-05-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 225912-6
    ISSN 1742-3406 ; 0144-8420
    ISSN (online) 1742-3406
    ISSN 0144-8420
    DOI 10.1093/rpd/ncab071
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    In stock of ZB MED Cologne/Königswinter

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  7. Article ; Online: Supporting self-management of radiation-induced bowel and bladder dysfunction in pelvic-cancer rehabilitation: An ethnographic study.

    Cerna, Katerina / Ivarsson, Jonas / Weilenmann, Alexandra / Steineck, Gunnar

    Journal of clinical nursing

    2019  Volume 28, Issue 13-14, Page(s) 2624–2634

    Abstract: Aims and objectives: To describe and understand strategies that oncological nurses use to support self-management of radiation-induced bowel and bladder issues in pelvic-cancer rehabilitation patients.: Background: Nurse-led self-management of ... ...

    Abstract Aims and objectives: To describe and understand strategies that oncological nurses use to support self-management of radiation-induced bowel and bladder issues in pelvic-cancer rehabilitation patients.
    Background: Nurse-led self-management of radiation-induced bowel and bladder issues holds the potential to support cancer survivors.
    Design: An ethnographic approach was applied in this study, which adhered to Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines.
    Methods: Data collection was conducted in Sweden between October 2015-April 2018, involving observations of nurses' daily work, formal and informal interviews, individual and group interviews, and reviews of relevant documents used in the studied practice. Furthermore, 15 supportive nurse-patient talks were observed, and an ethnographic analysis was performed.
    Results: The analysis identified the following three categories of nursing strategies that support self-management of radiation-induced bowel and bladder issues in pelvic-cancer rehabilitation patients: encouraging self-reflection, tailoring solutions together and keeping patients motivated. Nurses and patients jointly make sense of patients' symptoms using data that patients collect about themselves. Based on their shared understanding, they can co-create solutions to meet each individual patient's needs and develop routines to keep the patient motivated in performing the devised solutions.
    Conclusions: The results indicate that the strategies nurses use to support patients in self-management of radiation-induced bowel and bladder issues entail intertwining patients' experiences with their nurses' medical knowledge and specific clinical practice. Nurses' strategies build on their ability to connect patients' experiences and the elements of their own work practice.
    Relevance to clinical practice: A deeper understanding of nurses' strategies to support self-management of radiation-induced bowel and bladder issues in pelvic-cancer rehabilitation patients can improve other self-management programmes, inform nurses' education and aid in the design of tools for pelvic-cancer rehabilitation support.
    MeSH term(s) Female ; Humans ; Intestinal Diseases/therapy ; Intestines/injuries ; Male ; Middle Aged ; Neoplasms/rehabilitation ; Nurse-Patient Relations ; Qualitative Research ; Radiation Injuries/therapy ; Self-Management/education ; Sweden ; Urinary Bladder/injuries ; Urinary Bladder Diseases/therapy
    Language English
    Publishing date 2019-03-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 1159483-4
    ISSN 1365-2702 ; 0962-1067 ; 1752-9816
    ISSN (online) 1365-2702
    ISSN 0962-1067 ; 1752-9816
    DOI 10.1111/jocn.14849
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 3764: Show issues Location:
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  8. Book ; Thesis: Renderings & reasoning

    Ivarsson, Jonas

    studying artifacts in human knowing

    (Acta Universitatis Gothoburgensis ; Göteborg studies in educational sciences ; 207)

    2004  

    Author's details Jonas Ivarsson
    Series title Acta Universitatis Gothoburgensis
    Göteborg studies in educational sciences ; 207
    Language English
    Size 210 S, Ill
    Publisher Acta Univ. Gothoburgensis
    Publishing place Göteborg
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Univ., Diss.--Göteborg, 2004
    ISBN 9173464902 ; 9789173464901
    Database Former special subject collection: coastal and deep sea fishing

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  9. Book ; Thesis: Physical modeling of brain and head kinematics

    Ivarsson, Johan

    (Doktorsavhandlingar vid Chalmers Tekniska Högskola ; N.S., 1795)

    2002  

    Author's details Johan Ivarsson
    Series title Doktorsavhandlingar vid Chalmers Tekniska Högskola ; N.S., 1795
    Language English
    Size Getr. Zählung [ca. 220 S.], Ill., graph. Darst
    Publisher Chalmers Univ. of Techn
    Publishing place Göteborg
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Univ., Diss.--Göteborg, 2002
    ISBN 9172911131 ; 9789172911130
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  10. Article ; Online: THE APPLICATION OF IMPROVED, STRUCTURED AND INTERACTIVE GROUP LEARNING METHODS IN DIAGNOSTIC RADIOLOGY.

    Ivarsson, Jonas / Rystedt, Hans / Asplund, Sara / Johnsson, Åse Allansdotter / Båth, Magnus

    Radiation protection dosimetry

    2016  Volume 169, Issue 1-4, Page(s) 416–421

    Abstract: This study provides an example on how it is possible to design environments in a diagnostic radiology department that could meet learning demands implied by the introduction of new imaging technologies. The innovative aspect of the design does not result ...

    Abstract This study provides an example on how it is possible to design environments in a diagnostic radiology department that could meet learning demands implied by the introduction of new imaging technologies. The innovative aspect of the design does not result from the implementation of any specific tool for learning. Instead, advancement is achieved by a novel set-up of existing technologies and an interactive format that allows for focussed discussions between learners with different levels of expertise. Consequently, the study points to what is seen as the underexplored possibilities of tailoring basic and specialist training that meet the new demands given by leading-edge technologies.
    MeSH term(s) Curriculum ; Diagnostic Imaging ; Education, Medical, Continuing/methods ; Educational Measurement ; Models, Educational ; Radiology/education ; Simulation Training/methods ; Sweden ; Teaching
    Language English
    Publishing date 2016-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 225912-6
    ISSN 1742-3406 ; 0144-8420
    ISSN (online) 1742-3406
    ISSN 0144-8420
    DOI 10.1093/rpd/ncv497
    Database MEDical Literature Analysis and Retrieval System OnLINE

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