Sökning: "Diagnostic methods"

Visar resultat 1 - 5 av 682 avhandlingar innehållade orden Diagnostic methods.

  1. 1. Non-invasive diagnostic methods of intracranial arteries

    Detta är en avhandling från Diagnostic Radiology, (Lund)

    Författare :Birgitta Ramgren; Lunds universitet.; Lund University.; [2014]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; intracranial aneurysms; endovascular treatment; follow-up; subarachnoid haemorrhage; digital subtraction angiography; magnetic resonance angiography; computed tomography angiography; technical aspects; contrast agents; image quality;

    Sammanfattning : Aims of this thesis were to compare the agreement of different magnetic resonance angiography(MRA) techniques and digital subtraction angiography (DSA) in follow-up of intracranial aneurysms treated with coils in order to select the best MRA method, to evaluate the impact of increased iodine concentration in contrast medium and decreased tube voltage on arterial attenuation and image quality in computed tomography angiography (CTA) of intracranial arteries, and finally to evaluate the diagnostic accuracy of CTA in non-traumatic subarachnoid haemorrhage (SAH) compared to DSA and to assess the arterial attenuation (HU) as an image quality factor in this aspect. Follow-up DSA and time-of-flight (TOF) MRA at 1. LÄS MER

  2. 2. Long QT syndrome studies of diagnostic methods

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Ulla-Britt Diamant; Umeå universitet.; [2013]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiology; kardiologi;

    Sammanfattning : Background: The Long QT Syndrome (LQTS) is a hereditary heart disease with risk of malignant ventricular arrhythmia and sudden cardiac death. Despite our increased knowledge about genotype and phenotype correlation we still rely on the 12-lead ECG for assessment of the QT interval and the T-wave morphology for diagnosis and risk stratification. LÄS MER

  3. 3. Sleep apnea and sleep diagnostic aspects

    Detta är en avhandling från Umeå : Department of Public Health and Clinical Medicine, Respiratory Medicine and Allegy

    Författare :Carin Sahlin; Umeå universitet.; Umeå universitet.; [2009]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Sleep apnea; sleep stages; snoring; stroke; polysomnography; Cheyne-Stokes respiration; supine-dependency; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Cardiovascular medicine; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Kardiovaskulär medicin; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Lung diseases; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Lungsjukdomar; Lung Medicine; lungmedicin;

    Sammanfattning : Background: Patients with sleep apnea have frequent apneas and hypopneas during sleep. Apneas can be either central or obstructive. The apnea-hypopnea index (AHI) is the mean number of apneas and hypopneas per hour of sleep. LÄS MER

  4. 4. Chronic intraoral pain - assessment of diagnostic methods and prognosis

    Detta är en avhandling från Faculty of Odontology, Malmö University

    Författare :Maria Pigg; Malmö University.; [2011]
    Nyckelord :ODONTOLOGY; ODONTOLOGI; Medicine; Neuropathic pain; Orofacial pain; Trigeminal pain; Clinical studies; Prognosis; Diagnostic methods; Quantitative sensory testing; QST; Chronic pain; Endodontics;

    Sammanfattning : The overall goal of this thesis was to broaden our knowledge of chronic intraoral pain. The research questions were: •What methods can be used to differentiate inflammatory, odontogenic tooth pain from pain that presents as toothache but is non-odontogenic in origin? •What is the prognosis of chronic tooth pain of non-odontogenic origin, and which factors affect the prognosis? Atypical odontalgia (AO) is a relatively rare but severe and chronic pain condition affecting the dentoalveolar region. LÄS MER

  5. 5. Magnetizing Currents in Power Transformers Measurements, Simulations, and Diagnostic Methods

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Claes Carrander; KTH.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transformer core; diagnostics; three-phase; no-load; hysteresis; modeling; resonance; remanence; delta; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : This thesis demonstrates a method for transformer core diagnostics. The method uses the no-load current of the transformer as an indicator, and gives different characteristic signatures for different types of faults or defects. Using the no-load current for the diagnostic gives high sensitivity. LÄS MER