We have presented a case of prenatal double aortic arch, diagnosed by ultrasound, to demonstrate the importance of 3-vessel view by detecting aortic arch abnormalities. Double aortic arch is one the most common types of the vascular ring. The suspicion of a double aortic arch is raised by detecting the U-sign which is formed by the combination of both aortic arches and the left ductus arteriosus. In the 3-vessel view the ascending aorta and aortic arch are pointing to the right, whereas the left arch points to the left, and the trachea is seen between. The 4-chamber view appears normal, but the descending aorta is deviated medially. Literature review revealed an association between double aortic arch and congenital heart diseases in approximately 20% of cases; most often tetralogy of Fallot, transposition of great vessels, ventricular septal defects. Rarely there can be atresia of the segment of the aortic arch, which can be difficult to differentiate from other aortic arch anomalies associated with chromosomal abnormalities such as microdeletion of chromosome 22q11.
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Eur Radiol
January 2025
Department of Radiology, University of Groningen, University Medical Center of Groningen, Groningen, The Netherlands.
Objective: To evaluate the repeatability of AI-based automatic measurement of vertebral and cardiovascular markers on low-dose chest CT.
Methods: We included participants of the population-based Imaging in Lifelines (ImaLife) study with low-dose chest CT at baseline and 3-4 month follow-up. An AI system (AI-Rad Companion chest CT prototype) performed automatic segmentation and quantification of vertebral height and density, aortic diameters, heart volume (cardiac chambers plus pericardial fat), and coronary artery calcium volume (CACV).
Background And Aims: An arterial aneurysm is characterized by a localized expansion of a blood vessel relative to its original dimensions. Specifically, an abdominal aortic aneurysm (AAA) is identified as an aortic diameter measuring at least one and a half times the standard diameter at the renal artery level, approximately equivalent to 2.0 cm.
View Article and Find Full Text PDFArch Biochem Biophys
January 2025
Department of Anatomy, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Department of Biomedical Informatics, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea. Electronic address:
Background And Aims: Vascular smooth muscle cells are pivotal in atherosclerosis, transitioning from a contractile to a synthetic phenotype, which is associated with increased proliferation and inflammation. FRZB, a Wnt signaling modulator, has been implicated in vascular pathology, but its specific role in vascular smooth muscle cell phenotype modulation is not well understood. This study investigates the role of FRZB in regulating vascular smooth muscle cell phenotypes.
View Article and Find Full Text PDFClin Case Rep
January 2025
Department of Radiology and Radiotherapy, School of Medicine, College of Health Sciences Makerere University Kampala Uganda.
Double outlet right ventricle (DORV) is a rare congenital heart defect where both the aorta and pulmonary artery originate from the right ventricle, often accompanied by additional cardiac anomalies to mitigate circulatory imbalance, though such compensations usually fail. We report a 15-month-old infant with recurrent respiratory infections and poor weight gain, referred for computed tomography angiography. Physical examination showed a small, non-syndromic infant with pallor, tachypnea, irritability, and finger clubbing.
View Article and Find Full Text PDFEchocardiography
January 2025
Radiology Department, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Left images: Top: (A) Echocardiography shows a dilated pulmonary artery, large aortopulmonary window (dotted line), and abnormally positioned aortic arch. (B) MIP image reveals superior RV, inferior LV, and elongated arch vessels (arrows). Bottom: MinIP shows a thin left main bronchus and non-aerated RML (asterisk).
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