“Dark-blood” dual-energy computed tomography angiography for thoracic aortic wall imaging

AbstractObjectivesTo assess the capability of a newly developed material decomposition method from contrast-enhanced dual-energy CT images, aiming to better visualize the aortic wall and aortic intramural hematoma (IMH), compared with true non-contrast (TNC) CT.Materials and methodsTwenty-two patients (11 women; mean age, 61  ± 20 years) with acute chest pain underwent 25 dual-layer non-contrast and contrast-enhanced CT. CT-angiography images were retrospectively processed using two-material decomposition analysis, where we defined the first material as the content of a region of interest placed in the ascending a orta for each patient, and the second material as water. Two independent radiologists assessed the images from the second material termed “dark-blood” images and the TNC images regarding contrast-to-noise ratio (CNR) between the wall and the lumen, diagnostic quality regarding the presence of ao rtic wall thickening, and the inner/outer vessel wall conspicuity.ResultsDiagnostic quality scores in normal aortic segments were 0.9  ± 0.3 and 2.7 ± 0.6 (p 
Source: European Radiology - Category: Radiology Source Type: research

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We describe a comprehensive, multidisciplinary treatment approach for lumbar vertebral hemangiomas (VHs) with spinal stenosis and radiculopathy. A 59-year-old female presented with 1 year of pain predominantly in the lower back, with pain in the left buttock and proximal left anterior thigh as well and magnetic resonance imaging of the lumbar spine demonstrated lumbar scoliosis and an L3 vertebral lesion suspicious for hemangioma. A computed tomography guided biopsy was done, which supported the diagnosis. Definitive treatment entailed preoperative angiography and embolization, followed by L3 laminectomy, right L3 pedicle ...
Source: Journal of Craniovertebral Junction and Spine - Category: Orthopaedics Authors: Source Type: research
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Source: Neuro-Chirurgie - Category: Neurosurgery Authors: Tags: Neurochirurgie Source Type: research
Authors: Alderwish E, Schultz E, Kassam Z, Poon M, Coplan N Abstract There is a broad differential diagnosis for patients presenting with acute chest pain. History, physical examination, electrocardiogram, and serial troponin assays are pivotal in assessing patients with suspected acute coronary syndrome. However, if the initial workup is equivocal, physicians are faced with a challenge to find the optimal strategy for further triage. Risk stratification scores have been validated for patients with known acute coronary syndrome, such as the TIMI and GRACE scores, but there may be limitations in undifferentiated che...
Source: Reviews in Cardiovascular Medicine - Category: Cardiology Tags: Rev Cardiovasc Med Source Type: research
Abstract Pulmonary embolism (PE) is a condition characterised by an obstruction of the pulmonary arterial system by one or more emboli. Advanced clinical practitioners are often faced with ruling out a diagnosis of PE in patients with non-specific symptoms such as dyspnoea and pleuritic chest pain, which can be fairly mild and therefore a diagnosis of PE easily missed. PEs can be a challenge to diagnose, especially in elderly people, since it can be difficult to differentiate their symptoms from other less serious illnesses. Widely used scoring tools are helpful to calculate a patient's probability of having a PE....
Source: British Journal of Nursing - Category: Nursing Authors: Tags: Br J Nurs Source Type: research
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Source: Annali Italiani di Chirurgia - Category: Surgery Tags: Ann Ital Chir Source Type: research
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Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
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Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
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Source: Urology Case Reports - Category: Urology & Nephrology Source Type: research
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