Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Computed Tomography Angiography"”.
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Usefulness of Multidetector Computed Tomography Angiography in Vertebral and Basilar Artery Dissection
… (VBAD) is difficult to diagnose by conventional computed tomography. However, Multi-detector computed tomography (MDCT)angiography is not only a less invasive diagnostic technique than conventional angiography but also provides high quality images. We assessed clinical manifestations and …
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Origins of Systemic to Pulmonary Collateral Arteries and their Relative Frequencies in Patients with Pulmonary Artery Atresia or Stenosis as determined using Multidetector Computed Tomography Angiography
… with PA or PS identified using multi-detector computed tomography arteriography (MDCTA). METHOD: In this retrospective descriptive study a data set was created incorporating MDCTA cases performed at Red Cross War Memorial Children’s Hospital, Cape Town, South Africa (RCWMCH) during the period …
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A retrospective study of CT angiography versus digital subtraction angiography in penetrating neck trauma
… There is only sparse data validating the use of Computed Tomography Angiography (CTA) in the evaluation of penetrating neck trauma. OBJECTIVES. To assess the sensitivity and specificity of CTA versus Digital Subtraction Angiography (DSA) in detecting arterial injury and secondarily evaluate the …
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Handedness and the geometry and hemodynamics of the branches of the aortic arch
… measurements of the common carotid arteries in computed tomography angiography scans were obtained using Radiant DICOM Viewer (64-bit) imaging software. Selected geometric parameters of the vessels measured included minimum, mean, and maximum diameters, length, angle and calculated resistance to …
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Multimodal Data Fusion for Deep Learning Applications in Intracoronary Image Segmentation
… procedure for co-registering coronary computed tomography angiography (CCTA) and optical coherence tomography (OCT) frames with the initialization of a new hybrid model that uses user-inputted fiduciary bifurcations as landmarks to guide the non-rigid registration process for …
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Pilvinės aortos aneurizmos automatinės detekcijos nauda matuojant aneurizmos tūrį. Literatūros apžvalga ir modelio sukūrimas /
… measurement. Ten sets of abdominal and pelvic computed tomography angiography (CTA) images from 10 patients with abdominal aortic aneurysms (totaling 20 CTA image series) were utilized. Aortic and common iliac artery volumes were calculated manually in all patients using the 3mensio and OsiriX …
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Non-invasive diagnostic methods of intracranial arteries
… 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 …
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Vascular distribution of contrast medium during intraosseous regional perfusion in the equine distal limb
… time. Vessel identification was verified using computed tomography angiography and latex perfusion studies on separate cadaver distal forelimbs. Results — During IORP, contrast medium filled the medullary cavity of the MCIII, exited via trans-cortical vessels and diffused distally to the …
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Patient-specific blood flow modelling in diagnosis of coronary artery disease
… artery geometries reconstructed from Coronary Computed Tomography Angiography datasets (CCTA). The computed flow patterns extend the diagnostic value of CCTA, which, being noninvasive imaging modality, provides only static information on the anatomy of epicardial arteries. The clinical indices …
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Kepenų arterijų anatominės variacijos bei jų reikšmė radiologinėje diagnostikoje ir klinikinėje praktikoje /
… hepatic arterial variations, digital subtraction angiography, computed tomography angiography, magnetic resonance angiography.
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Prediction of Coronary Atherosclerosis Development: A Study Based on the Combination of Mechanomics and Radiomics
… and techniques have established coronary computed tomography angiography (CTA) as the first-line non-invasive method for diagnosing CAD. Alongside, improvements in computational power have accelerated the growth in machine learning and significantly reduced the time for computational fluid …
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Development of supervised and unsupervised pixel-based classification methods for medical image segmentation
… of medical images other than microscopic such as Computed Tomography Angiography images.
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IMPACT OF STRESS CARDIAC COMPUTED TOMOGRAPHY MYOCARDIAL PERFUSION ON DOWNSTREAM RESOURCES AND PROGNOSIS IN PATIENTS WITH SUSPECTED OR KNOWN CORONARY ARTERY DISEASE: A MULTICENTRE INTERNATIONAL STUDY - THE CTP-PRO STUDY
Background: Stress computed tomography perfusion (Stress-CTP) is a CT-based functional technique that can be added to coronary computed tomography angiography (cCTA) to improve management of patients with suspected coronary artery disease (CAD). The aim of the study is to evaluate the usefulness of …
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The assessment of biomechanical modelling and PET/MR imaging in coronary atherosclerosis
… rupture of the coronary atherosclerotic plaques. Angiography-defined luminal stenosis is the only validated criterion for clinical decision making. However, post-mortem studies showed that only 14% of myocardial infarctions (MIs) were caused by plaques with >70% stenosis. Plaque vulnerability, …