AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Jun 1996
Digital subtraction rotational angiography for aneurysms of the intracranial anterior circulation: injection method and optimization.
To optimize parameters of rotational angiography for examination of the internal carotid circulation; to compare rotational angiography with standard digital subtraction angiography (DSA) in the evaluation of aneurysms of the intracranial internal carotid circulation; and to determine tolerance and safety limits of prolonged internal carotid injection angiography. ⋯ Rotational angiography provided better definition of the aneurysmal neck and greater clarity of aneurysms than did DSA; it also improved the level of confidence in predicting the presence or absence of aneurysms, especially in the anterior communicating artery; however, in our small series it did not significantly increase the detection of aneurysms. Prolonged injection angiography was well tolerated in all patients.
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AJNR Am J Neuroradiol · Jun 1996
Preliminary evaluation of fluid-attenuated inversion-recovery MR in the diagnosis of intracranial tumors.
To report our preliminary results in the application of a turbo fluid-attenuated inversion-recovery (FLAIR) MR technique to the diagnosis of intracranial tumors and to assess the clinical usefulness of this technique. ⋯ Turbo FLAIR images can supplement conventional spin-echo images in the diagnosis of intracranial tumors.
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AJNR Am J Neuroradiol · May 1996
Comparative StudyColor Doppler sonography in penetrating injuries of the neck.
To determine whether color Doppler sonography can be a sensitive alternative to screening arteriography for identifying arterial injury in patients with penetrating traumatic neck injuries. ⋯ Color Doppler sonography was as accurate as angiography in screening clinically stable patients with zone II or III injuries and no signs of active bleeding. Our initial results suggest that in the future, sonography may be used as a screening examination for arterial lesions in patients with penetrating neck injuries.
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AJNR Am J Neuroradiol · May 1996
Use of color power transcranial Doppler sonography to monitor aneurysmal coiling.
We describe the use of a recently developed technique in the field of color Doppler sonography, called power Doppler or color Doppler energy, that produces better images of the intracranial arteries than those obtained by conventional color Doppler techniques. Color Doppler energy makes it possible to identify aneurysms and their relationship to the parent artery, thus allowing one to observe how much of an aneurysm remains patent and the condition of adjacent arteries during endovascular treatment. We describe the use of this technique during the insertion of Guglielmi detachable coils into aneurysms and during subsequent follow-up examination.
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AJNR Am J Neuroradiol · May 1996
Endovascular therapy for the carotid blowout syndrome in head and neck surgical patients: diagnostic and managerial considerations.
To review our institution's recent experience with patients with carotid blowout syndrome who were referred for emergency diagnostic angiography and endovascular therapy. ⋯ Our recent experience with carotid blowout syndrome suggests that this clinical diagnosis represents a heterogeneous group of angiographic pathoetiologies that the physician should evaluate carefully before proceeding with endovascular therapy. Specific endovascular approaches depend on the pathoetiologic mechanism of active or impending hemorrhage and the urgency with which intervention is required.