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Home > Art, Film & Photography > Radiologic Signs: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign
Radiologic Signs: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign

Radiologic Signs: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign


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About the Book

Chapters: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign, Air Crescent Sign, Mumoli's Sign, Hampton Hump, Omental Cake, Football Sign, Thumbprint Sign, Steeple Sign, Radiologic Sign, Pneumatosis Intestinalis. Source: Wikipedia. Pages: 42. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: In medicine, the dense artery sign or hyperdense artery sign is a radiologic sign seen on computer tomography (CT) scans suggestive of early ischemic stroke. In earlier studies of medical imaging in patients with strokes, it was the earliest sign of ischemic stroke in a significant minority of cases. Its appearance portends a poor prognosis for the patient. The sign has been observed in the middle cerebral artery (MCA), posterior cerebral artery (PCA), vertebral artery, and basilar artery; these have been called the dense MCA sign, dense PCA sign, dense vertebral artery sign, and dense basilar artery sign, respectively. Through cerebral angiography, the sign has been demonstrated to correspond to embolic or atherosclerotic occlusion of an artery. Specifically, the hyperdensity is thought to be due to calcification or hemorrhage associated with an atherosclerotic plaque. Identification of the dense artery sign is often based on subjective interpretation and false positives may occur. One study aiming to define criteria for the sign determined that measuring Hounsfield units on the CT scan could differentiate between the dense MCA sign associated with ischemic stroke and that caused by false positives. Specifically, the combination of greater than 43 Hounsfield units and an MCA ratio of greater than 1.2 was diagnostic of a dense MCA sign associated with acute ischemic stroke. ...More: http: //booksllc.net/?id=2197898


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Product Details
  • ISBN-13: 9781157514978
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • Sub Title: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign
  • Width: 229 mm
  • ISBN-10: 1157514979
  • Publisher Date: 15 Sep 2010
  • Binding: Paperback
  • Spine Width: 3 mm
  • Weight: 77 gr


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Radiologic Signs: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign
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Radiologic Signs: Dense Artery Sign, Kerley Lines, Westermark Sign, Golden S Sign, Halo Sign, Deep Sulcus Sign, Crescent Sign, Rigler's Sign
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