J Radiol
-
For several years, catheter angiography was the standard imaging technique used for evaluating the pulmonary arteries. Technical advances with computed tomography have had a significant impact on chest imaging, especially the increasing availability of multidetector row CT units. ⋯ Pulmonary angiography is now essentially limited to the endovascular management of pulmonary arteriovenous malformations, pulmonary arteriovenous fistulas or pulmonary arterial aneurysms. Gadolinium enhanced MR angiography of the pulmonary arteries may be helpful in patients with contraindications to the use of iodinated contrast material.
-
Intradiploic meningoencephalocele is rarely found in adulthood. It is thought to be postraumatic and must be differenciated from congenital encephalocele. Imaging findings, particularly with Magnetic Resonance Imaging, are useful in determining the various linings and contents of this intradiploic defect.
-
Polyarteritis nodosa (PAN) is a systemic vasculitis of small and medium size arteries. The purpose of this study is to evaluate imaging findings, especially angiographic features, of 17 patients with abdominal involvement from polyarteritis nodosa. ⋯ Involvement of gastrointestinal and renal arteries is frequent in polyarteritis nodosa. The diagnosis of PAN should be considered when multiple small-sized aneurysms are present at angiography even if biopsy is negative.
-
The aim of this study was to evaluate the feasibility and safety of endovascular repair in acute traumatic aortic rupture on the basis of our experience with 16 patients. ⋯ Endovascular stent-graft repair is a valuable technique and is emerging as an alternative technique for treating thoracic aortic injury in patients in whom coexisting injury increases the surgical risk.
-
Review
[Prevention of severe reactions after iodinated contrast media injection: review of the literature].
One of the goal of a premedication before contrast agent injection is to decrease their adverse effects. However, no randomized study was published to date on the value of a systematic premedication for the prevention of immediate severe reactions. A knowledge of pathophysiological mechanisms and patients at risk seems to be essential. ⋯ Indeed, measurement of specific IgEs has not been validated for contrast media. The test dose should be discarded because it is a false security. The eventuality of adverse effects of the drugs used for premedication should not be underestimated.