Evaluation of coronary artery variations using dual-source coronary computed tomography angiography in neonates with transposition of the great arteries

ConclusionDual-source coronary CT angiography has a higher diagnostic ability than echocardiography in the assessment of the origins and courses of the coronary arteries in neonates with TGA.
Source: Japanese Journal of Radiology - Category: Radiology Source Type: research

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Authors: Wan Z, Meng H, Xu N, Liu T, Chen Z, Zhang Z, Xu J, Wang H Abstract The primitive trigeminal artery is an anastomotic vessel of the carotid-basilar artery system that occurs only transiently during the embryonic period. Persistent primitive trigeminal artery occurs in approximately 0.1-0.6% of the population. Here, we report the case of a 60-year-old woman with Fisher II grade subarachnoid haemorrhage. Computed tomography angiography demonstrated a lateral, Saltzman type I persistent primitive trigeminal artery with three cerebral aneurysms, including one anterior communicating artery aneurysm, one suspicio...
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research
New research helps zero in on which patients with suspected coronary artery disease (CAD) will derive the most benefit from coronary computed tomography angiography (CTA).Reuters Health Information
Source: Medscape Medical News Headlines - Category: Consumer Health News Tags: Cardiology News Source Type: news
To investigate the value of myocardial computed tomography (CT) perfusion imaging (CTP) and atherosclerotic plaque characteristics (APCs) identified on coronary CT angiography (CCTA) for the detection of myocardial ischaemia by using single-photon-emission CT (SPECT) as a reference.
Source: Clinical Radiology - Category: Radiology Authors: Source Type: research
Publication date: Available online 20 June 2019Source: Journal of Veterinary CardiologyAuthor(s): Jonathan Bouvard, Florence Thierry, Geoffrey J. Culshaw, Tobias Schwarz, Ian Handel, Yolanda Martinez-PereiraAbstractIntroductionWe hypothesised that real-time three-dimensional echocardiography (RT-3DE) was superior to bi-dimensional (2D) echocardiography for the estimation of left atrial volume (LAV), using electrocardiographic (ECG)-gated multidetector computed tomography angiography (MDCTA) as a volumetric gold standard. The aim was to compare maximum LAV (LAVmax) and minimum LAV (LAVmin) measured by biplane area-length me...
Source: Journal of Veterinary Cardiology - Category: Veterinary Research Source Type: research
Authors: Kruger PC, Eikelboom JW, Douketis JD, Hankey GJ Abstract Pulmonary embolism (PE) is a potentially life-threatening condition, mandating urgent diagnosis and treatment. The symptoms of PE may be non-specific; diagnosis therefore relies on a clinical assessment and objective diagnostic testing. A clinical decision rule can determine the pre-test probability of PE. If PE is "unlikely", refer for a D-dimer test. If the D-dimer result is normal, PE can be excluded. If D-dimer levels are increased, refer for chest imaging. If PE is "likely", refer for chest imaging. Imaging with computed tomo...
Source: Medical Journal of Australia - Category: General Medicine Tags: Med J Aust Source Type: research
AbstractThe recently introduced coronary artery disease reporting and data system (CAD-RADS) evaluated by computed tomography and based on stenosis severity, might not adequately reflect the complexity of CAD. We explored the relationship between CAD-RADS and the spatial distribution, burden, and complexity of lesions by invasive coronary angiography (ICA). Stable patients who underwent coronary computed tomography angiography (CCTA) and ICA comprised the study population. Patients were classified according to the CAD-RADS: 0, No plaque; 1, 1 –24% stenosis; 2, 25–49%; 3, 50–69%; 4A, 70–99%; 4B, left...
Source: The International Journal of Cardiovascular Imaging - Category: Radiology Source Type: research
AbstractPurpose of ReviewTo summarize the current status of coronary computed tomography angiography (CTA) in the assessment of coronary plaques and discuss the ability of serial coronary CTA to quantitatively measure changes in the plaque burden in response to lipid-lowering therapy.Recent FindingsRecent advances in coronary CTA have allowed identification of high-risk coronary features in acute coronary syndrome and measurement of changes in the coronary plaque burden with good reproducibility. Statin therapy may delay plaque progression and change some plaque features. However, the clinical relevance of quantitative cha...
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Source: European Journal of Trauma and Emergency Surgery - Category: Emergency Medicine Source Type: research
In conclusion, ­e-CTA provides a real-time and fully automated approach to collateral scoring with the potential to improve consistency of image interpretation and to independently quantify collateral scores even without expert rater input.Cerebrovasc Dis
Source: Cerebrovascular Diseases - Category: Neurology Source Type: research
ConclusionsAs a whole, a classifier using Convolutional Neural Network is designed and applied in order to detect AAA region among other abdominal regions. Then Hough Circles algorithm is applied to aorta patches for finding aorta border and measuring its diameter. Ultimately, the detected aortas will be categorized according to their diameters. All steps meet the expected results.
Source: Cardiovascular Engineering and Technology - Category: Cardiology Source Type: research
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