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Browsing by Subject "Sneiðmyndatökur"

Browsing by Subject "Sneiðmyndatökur"

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    Application of the POCS inversion method to cross‐borehole imaging 
    Bjarnason, Ingi Þorleifur; Menke, William (Society of Exploration Geophysicists, 1993-07)
    Cross-borehole tomography suffers from a well-known problem of data incompleteness: the limited ray coverage dictated by the poor experimental geometry implies that certain features of the velocity field are not determined by the data. Construction of ...
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    Assessing cardiovascular risks from a mid-thigh CT image: A tree-based machine learning approach using radiodensitometric distributions 
    Ricciardi, Carlo; Edmunds, Kyle; Recenti, Marco; Sigurdsson, Sigurdur; Gudnason, Vilmundur; Carraro, Ugo; Gargiulo, Paolo (Springer Science and Business Media LLC, 2020-02-18)
    The nonlinear trimodal regression analysis (NTRA) method based on radiodensitometric CT distributions was recently developed and assessed for the quantification of lower extremity function and nutritional parameters in aging subjects. However, the use ...
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    Breytingar í lungnavef á tölvusneiðmyndum sjúklinga með kórónuveirusjúkdóm 2019 (COVID-19) 
    Halldórsson, Arnljótur Björn; Axelsson, Gísli Þór; Jónsson, Helgi; Ísaksson, Jóhann Davíð; Harðardóttir, Hrönn; Guðmundsson, Gunnar; Hansdóttir, Sif (2021-10)
    Introduction Infections due to COVID-19 can lead to life threatening pneumonia. Accompanying severe disease are more prominent pulmonary changes on Computed Tomography (CT) scan of the chest. The goal of this study was to describe pulmonary CT changes ...
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    The effect of local wind on seismic noise near 1 Hz at the MELT site and in Iceland 
    Wilcock, William S. D.; Webb, Spahr C.; Bjarnason, Ingi Þorleifur (The Seismological Society of America, 1999)
    The mantle electromagnetic and tomography (MELT) experiment on the east Pacific rise near 17°S was the first large teleseismic experiment on a midocean ridge. During the six-month deployment, no compressional arrivals were well recorded above 0.5 ...
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    Empirical relationships between bone density and ultimate strength: A literature review 
    Fleps, Ingmar; Bahaloo, Hassan; Zysset, Philippe K.; Ferguson, Stephen J.; Pálsson, Halldór; Helgason, Benedikt (Elsevier BV, 2020-10)
    Introduction: Ultimate strength-density relationships for bone have been reported with widely varying results. Reliable bone strength predictions are crucial for many applications that aim to assess bone failure. Bone density and bone morphology have ...
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    Machine learning predictive system based upon radiodensitometric distributions from mid-thigh CT images 
    Recenti, Marco; Ricciardi, Carlo; Edmunds, Kyle; Gislason, Magnus K.; Gargiulo, Paolo (PAGEPress Publications, 2020-04-01)
    The nonlinear trimodal regression analysis (NTRA) method based on radiodensitometric CT images distributions was developed for the quantitative characterization of soft tissue changes according to the lower extremity function of elderly subjects. In ...
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    Nonlinear Trimodal Regression Analysis of Radiodensitometric Distributions to Quantify Sarcopenic and Sequelae Muscle Degeneration 
    Edmunds, Kyle; Árnadóttir, Íris Dröfn; Gíslason, Magnús; Carraro, Ugo; Gargiulo, Paolo (Hindawi Limited, 2016-12)
    Muscle degeneration has been consistently identified as an independent risk factor for high mortality in both aging populations and individuals suffering from neuromuscular pathology or injury. While there is much extant literature on its quantification ...
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    Quantitative Computed Tomography and image analysis for advanced muscle assessment 
    Árnadóttir, Íris Dröfn; Piccione, Francesco; Gargiulo, Paolo; Edmunds, Kyle; Magnús Gíslason; Marcante, Andrea (Pagepress Publ, Meditgroup, 2016)
    Medical imaging is of particular interest in the field of translational myology, as extant literature describes the utilization of a wide variety of techniques to non-invasively recapitulate and quantity various internal and external tissue morphologies. ...
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    Tomographic image of the Mid-Atlantic Plate Boundary in southwestern Iceland 
    Bjarnason, Ingi Þorleifur; Menke, William; Flóvenz, Ólafur G.; Caress, David (American Geophysical Union (AGU), 1993-04-10)
    The 170 km South Iceland Seismic Tomography (SIST) profile extends from the west and across the Mid‐Atlantic Ridge spreading center in the Western Volcanic Zone and continues obliquely through the transform zone (the South Iceland Seismic Zone) to the ...