PURPOSE To evaluate the accuracy of CT images of abdominal aortic aneurysm (AAA) with volume-rendered (VR) display of vessel lumen and thrombus and to evaluate its usefulness in the planning of stent-grafting. MATERIALS AND METHODS Helical CT was performed in 11 patients with AAA. Volume data of the vessel lumen and thrombus were separately extracted, and the VR images were reconstructed. Ves...

Carotid body tumours are slow-growing hypervascular lesions arising from nonchromaffin cells within the neural crest in the region of the carotid bifurcation.' They are also referred to as paragangliomas and it is well documented that they may be multiple.2 These lesions have characteristic magnetic resonance imaging (MRI) features that permit accurate diagnosis and precise definition of tumour...

We performed 3T magnetic resonance angiography (MRA) during a spontaneous migraine attack. The patient was a 42-year-old woman migraineur diagnosed by the IHS criteria. The change of the middle meningial artery (MMA) was measured on the axial brain images using MATLAB for three phases (attack-free period, during an attack, a period after medication). There were no dramatic changes of vasodilati...

Figure 1: A. (Top Left) Coronal T2 MRI: Arrowhead showing right cavernous carotid displacing optic chiasm superiorly. Arrow highlighting left ACA displacing the left portion of the optic chiasm inferiorly. Also note focal hyperintensity in the right chiasm. B. (Top Right) Coronal T2 MRI: Arrowhead showing displacement of optic chiasm superiorly by supraclinoid cavernous carotid. C. (Bottom Left...

Background Spin echo Axial T1 images are used to evaluate the great vessels and cardiac structures. In some patients with depressed left ventricular ejection fraction (LVEF) the sequence fails to null blood of the descending aorta (dAo) at the level of the main pulmonary artery (MPA). This may represent stasis of blood from the aorta and reflect a decreased LVEF, stroke volume (LVSV) and/or car...

Multidetector row CT scanners with submillimeter spatial resolution and high temporal resolution are now available and are increasingly used for noninvasive assessment of vascular disease including coronary arteries and grafts. The entire heart and graft course can be scanned within a single breath-hold, and contrast-enhanced images are reconstructed through retrospective ECG gating. In this pi...

Methods A retrospective analysis of serial Asc Ao dimension was made of 31 patients (mean age 46±14, 68% male and 32% female) with BAV who underwent at least 2 cardiovascular magnetic resonance imaging study (CMR) > 4 months apart from January 2002 to September 2012 at the Royal Brompton Hospital. Patients with associated aortic coarctation or aortic valvular dysfunction were excluded. Images w...