Birna Jonsdottir

Birna Jonsdottir
Domus Medica · Department of Radiology

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30
Publications
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585
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Publications

Publications (30)
Article
Full-text available
Importance Genetic studies have evaluated the influence of blood lipid levels on the risk of coronary artery disease (CAD), but less is known about how they are associated with the extent of coronary atherosclerosis. Objective To estimate the contributions of genetically predicted blood lipid levels on the extent of coronary atherosclerosis. Desi...
Article
Visceral adipose tissue (VAT) is a key pathogenic fat depot in the metabolic syndrome (MetS), but liver fat (LF) may also play an important role. We evaluated associations of VAT and LF with MetS in normal weight, overweight, and obese men and women (BMI <25, 25-29.9, and ≥30 kg/m2, respectively). This analysis included 2,495 participants from the...
Article
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn Skoða/Opna(view/open) Læknalög voru fyrst sett hérlendis árið 1911. Frá upphafi hefur megintilgangur með læknalögum verið að skýra lækningastarfsemina og binda lækningaleyfi ströngum skilyrðum. Endurtekið hefur læknalögum verið breytt á þessum hundrað árum sem li...
Article
To investigate the diagnostic accuracy of 64-slice multidetector computed tomography (64-CT) for detection of in-stent restenosis (ISR) in an unselected, consecutive patient population. Detection of in-stent restenosis by cardiac CT would be a major advance for the evaluation of patients suspected of having ISR. However, the diagnostic accuracy of...
Article
Abstract The influence of 2-hydroxypropyl-β-cyclodextrin (HPβCD) on the permeability of hydrocortisone through semi-permeable cellophane membrane and hairless mouse skin was investigated. When the hydrocortisone concentration was kept constant and the HPβCD concentration in an aqueous vehicle was gradually increased the flux through the semi-permea...
Article
The aim of this study was to evaluate the diagnostic accuracy (sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV)) of 64-slice multidetector computed tomography (MDCT) compared with quantitative coronary angiography (QCA) for detection of coronary artery disease (CAD). Sixty-nine patients participating in...
Article
Full-text available
Misreporting fractures in questionnaires is known. However, the effect of misreporting on the association of fractures with subsequent health outcomes has not been examined. Data from a fracture registry (FR) developed from an extensive review of radiographic and medical records were related to self-report of fracture for 2,255 participants from th...
Article
Unlabelled: A fifty six year old woman with history of asthma visited a respiratory specialist. She had been diagnosed with asthma more than a year previously in a primary care clinic. She was treated with inhaled medications without good response. A respiratory specialist diagnosed tracheal narrowing secondary to thyroid enlargement that was push...
Article
It is important to identify possible pathological mechanisms that underlie the known sexual dimorphism in bone fragility in old age. In this cross-sectional population-based study, we use data from three different skeletal sites to examine sex differences in volumetric bone density, geometry and strength indices and determine whether sex difference...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open AIM OF STUDY: To compare the utility and reliability of coronary angiography with multislice computed tomography (MSCT) and by cardiac catheterisation in assessing atherosclerotic lesions and stenosis. MATERIAL AND METHODS: Data were assessed from 44 su...
Article
To compare the utility and reliability of coronary angiography with multislice computed tomography (MSCT) and by cardiac catheterisation in assessing atherosclerotic lesions and stenosis. Data were assessed from 44 subjects (25 men, 19 women) (mean age 63 years; range 34-80 years) referred to MSCT who also had undergone invasive coronary angiograph...
Article
Full-text available
A young woman was admitted to Akranes Regional Hospital because of dyspnea, fatigue and fever. She was found to have bilateral pneumonia but etiology was not found. She was treated with antibiotics with good resolution and was discharged after eight days from the hospital. Four weeks later she noticed rapidly progressive dyspnea and was found to be...
Article
Several intracranial pathological conditions can affect the bones of the skull. The most common cause of these conditions is tumor, but infection and other diseases are also known to affect the bones of the skull. Distinguishing between the various causes of intracranial skeletal pathology in archaeological human remains is usually a challenging ex...
Article
Migraine is the cause of 3-25% of strokes in young adults. Each year we can expect 9-10 cases of migraine-related stroke in Iceland. The most common symptom is hemianopia but other common symptoms include hemiparesis, hemianesthesia, dysphasia and various brain stem symptoms. The stroke must occur during a typical migraine attack and other causes h...
Article
Vertebral trabecular bone mineral density (BMD) was measured in 187 healthy Icelandic women, age 35-64 years, by quantitative computed tomography (QCT) with the use of internal references (muscle and subcutaneous fat) instead of the traditional external references (phantoms). We found a mean 2.4 mg/cm3 (1.8%) bone loss per year in the age range 35-...
Article
Thirty-six patients with malignant carcinoid tumors were treated with human leukocyte interferon (IFN) im at doses of 3-6 megaunits/day. The origins of the primary tumors were as follows: mid-gut (29 patients); pulmonary (four); rectal (one); ovarian (one); and unknown (one). Nineteen of the 36 patients had previously been treated with cytotoxic ag...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn Skoða/Opna(view/open) A young woman was admitted to Akranes Regional Hospital because of dyspnea, fatigue and fever. She was found to have bilateral pneumonia but etiology was not found. She was treated with antibiotics with good resolution and was discharged aft...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open A fifty six year old woman with history of asthma visited a respiratory specialist. She had been diagnosed with asthma more than a year previously in a primary care clinic. She was treated with inhaled medications without good response. A respiratory sp...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Objective: The aim of this study was to evaluate the diagnostic accuracy (sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV)) of 64-slice multidetector computed tomography (MDCT) compared with quantitative coro...
Article
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Læknafélag Íslands hefur í 90 ár verið bæði fagfélag og stéttarfélag. Háleit og metnaðarfull siðferðileg markmið setjum við okkur með eigin siðareglum og læknaeiðnum og þetta eigum við sameiginlegt með alþjóðasamfélagi lækna. Menntun lækna sem annar hor...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Migraine is the cause of 3-25% of strokes in young adults. Each year we can expect 9-10 cases of migraine-related stroke in Iceland. The most common symptom is hemianopia but other common symptoms include hemiparesis, hemianesthesia, dysphasia and vario...
Article
Full-text available
Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Í þessari grein er lýst sérstaklega þeirri aðferð að stinga á portæðargrein og þræða miltisbláæð til þess að ná blóðsýni frá brisi í þeim tilgangi að staðsetja insúlínæxli. Aðferðina þarf sjaldan að nota enda er hún tæknilega erfið og tengd vissri áhætt...

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