AJR. American journal of roentgenology
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AJR Am J Roentgenol · Feb 1995
Vertebral artery injury after acute cervical spine trauma: rate of occurrence as detected by MR angiography and assessment of clinical consequences.
The purposes of this study were to assess prospectively the frequency of vertebral artery injuries after major acute cervical spine trauma as determined by MR angiography and to assess the clinical consequences of these injuries. ⋯ In our experience, vertebral artery injuries due to major cervical spine trauma as determined by MR angiography are common. Although these vascular abnormalities usually remain clinically occult, a small percentage of patients may suffer devastating neurologic complications of posterior fossa infarction. Noninvasive assessment of the vertebral arteries by means of MR imaging should be an integral part of the evaluation of the acutely injured cervical spine.
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AJR Am J Roentgenol · Jan 1995
ReviewImaging of acute injuries of the cervical spine: value of plain radiography, CT, and MR imaging.
Imaging of injuries of the cervical spine has undergone substantial changes in the past 10 years. The use of CT and MR imaging has been emphasized by many authors. ⋯ This review explores the usefulness of CT and MR imaging in the diagnosis and management of acute injuries of the cervical spine and emphasizes the continued importance of conventional radiography. Specific examples that illustrate the relative merits of plain radiography, CT, and MR imaging are shown.
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AJR Am J Roentgenol · Jan 1995
Sonography by the radiologist: self-referral, turf battles, and marketing.
Competition between radiologists and nonradiologists for the performance and billing of radiologic imaging examinations is, perhaps, most pervasive in the field of diagnostic sonography [1-3]. The purpose of this article is to help radiologists understand and deal with turf battles and the self-referral of clinicians and to describe marketing analyses and strategy that can be useful when attempting to decrease competition and increase referrals.