Literature DB >> 16155153

The hypodense artery sign.

Thomas C Lee1, Eric S Bartlett, Allan J Fox, Sean P Symons.   

Abstract

An acute intracranial embolus may be associated with a hyperdense artery sign on CT, related to acute thrombus within the affected artery, a phenomenon that is well known and has been extensively documented. We present an unusual case of a middle cerebral artery territory acute infarct with a hypodense artery on CT. The Hounsfield unit attenuation of the embolic lesion was fat density. CT angiography and MR imaging confirmed the fatty lesion to be within the middle cerebral artery.

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Year:  2005        PMID： 16155153      PMCID： PMC8148856     

Source DB:  PubMed          Journal:  AJNR Am J Neuroradiol        ISSN： 0195-6108            Impact factor:   3.825


  14 in total

1.  Detectability of cerebral hemisphere ischaemic infarcts by CT within 6 h of stroke.

Authors:  R von Kummer; P N Nolte; H Schnittger; A Thron; E B Ringelstein
Journal:  Neuroradiology       Date:  1996-01       Impact factor: 2.804

2.  High-resolution CT findings in mild pulmonary fat embolism.

Authors:  Katerina Malagari; Nikos Economopoulos; Christophoros Stoupis; Zoe Daniil; Spyros Papiris; Nestor L Müller; Dimitrios Kelekis
Journal:  Chest       Date:  2003-04       Impact factor: 9.410

3.  An early CT sign of ischemic infarction: increased density in a cerebral artery.

Authors:  B D Pressman; E J Tourje; J R Thompson
Journal:  AJR Am J Roentgenol       Date:  1987-09       Impact factor: 3.959

4.  Interobserver agreement in assessing early CT signs of middle cerebral artery infarction.

Authors:  R von Kummer; R Holle; U Gizyska; E Hofmann; O Jansen; D Petersen; M Schumacher; K Sartor
Journal:  AJNR Am J Neuroradiol       Date:  1996-10       Impact factor: 3.825

5.  Prevalence and significance of hyperdense middle cerebral artery in acute stroke.

Authors:  D Leys; J P Pruvo; O Godefroy; P Rondepierre; X Leclerc
Journal:  Stroke       Date:  1992-03       Impact factor: 7.914

6.  Hyperdense middle cerebral artery CT sign. Comparison with angiography in the acute phase of ischemic supratentorial infarction.

Authors:  S Bastianello; A Pierallini; C Colonnese; G Brughitta; U Angeloni; M Antonelli; L M Fantozzi; C Fieschi; L Bozzao
Journal:  Neuroradiology       Date:  1991       Impact factor: 2.804

7.  Paradoxical cerebral embolisation. An explanation for fat embolism syndrome.

Authors:  G Riding; K Daly; S Hutchinson; S Rao; M Lovell; C McCollum
Journal:  J Bone Joint Surg Br       Date:  2004-01

8.  Early and late stroke after mitral valve replacement with a mechanical prosthesis: risk factor analysis of a 24-year experience.

Authors:  Ko Bando; Junjiro Kobayashi; Mitsuhiro Hirata; Toshihiko Satoh; Kazuo Niwaya; Osamu Tagusari; Satoshi Nakatani; Toshikatsu Yagihara; Soichiro Kitamura
Journal:  J Thorac Cardiovasc Surg       Date:  2003-08       Impact factor: 5.209

9.  Hyperdense middle cerebral artery: incidence and quantitative significance.

Authors:  T A Tomsick; T G Brott; C P Olinger; W Barsan; J Spilker; R Eberle; H Adams
Journal:  Neuroradiology       Date:  1989       Impact factor: 2.804

10.  The unilateral hyperdense middle cerebral artery: an early CT-sign of embolism or thrombosis.

Authors:  G Schuierer; W Huk
Journal:  Neuroradiology       Date:  1988       Impact factor: 2.804
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  9 in total

1.  Intracranial transthecal subarachnoid fat emboli and subarachnoid haemorrhage arising from a sacral fracture and dural tear.

Authors:  J K H Woo; D Malfair; T Vertinsky; M K S Heran; D Graeb
Journal:  Br J Radiol       Date:  2010-01       Impact factor: 3.039

Review 2.  Imaging of intracranial fat: from normal findings to pathology.

Authors:  Nicola Romano; Antonio Castaldi
Journal:  Radiol Med       Date:  2021-05-05       Impact factor: 3.469

Review 3.  Imaging findings of acute intravascular thrombus on non-enhanced computed tomography.

Authors:  Ryan T Whitesell; Scott D Steenburg
Journal:  Emerg Radiol       Date:  2014-03-21

4.  Pulmonary fat embolism after pelvic and long bone fractures in a trauma patient.

Authors:  Brady K Huang; Johnny U V Monu; John Wandtke
Journal:  Emerg Radiol       Date:  2008-08-12

5.  Portable head computed tomography in the diagnosis of cerebral fat embolism secondary to cardiac surgery.

Authors:  Amer M Malik
Journal:  Neurohospitalist       Date:  2012-10

6.  Relative Hypodense Vertebral Artery Sign on Computerized Tomography in Atherosclerotic Near Occlusion.

Authors:  Muhammad Faraz Raghib; Slaven Pikija
Journal:  Case Rep Neurol Med       Date:  2016-12-29

Review 7.  A Systematic Review of the Causes and Management of Nonthrombotic Embolic Stroke of Tissue Origin.

Authors:  Sarah Mello; Ciaran Judge; Roisin Kelly; David Bradley; Joseph Harbison
Journal:  Stroke Res Treat       Date:  2018-04-24

8.  A Rare Case of Complex Pelvic Injury and Associated Intrathecal Fat Embolism due to Spinopelvic Dislocation with Sacral Burst Fracture.

Authors:  Jan-Dierk Clausen; Karsten Fink; Michaela Wilhelmi; Christian Macke; Marcel Winkelmann; Christian Krettek; Philipp Mommsen
Journal:  Case Rep Orthop       Date:  2020-12-02

9.  Hypodense middle cerebral artery with fat embolus.

Authors:  Nicholas S Abend; Joshua M Levine
Journal:  Neurocrit Care       Date:  2007       Impact factor: 3.532
  9 in total

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