Cerebral fat embolism: diffusion-weighted magnetic resonance imaging findings

Ryu, Chang‐Woo; Lee, D. H.; Kim, T. K.; Kim, S. J.; Kim, H. S.; Lee, J. H.; Choi, Choong Gon; Suh, Dae Chul

doi:10.1080/02841850510021481

Cited by 51 publications

(33 citation statements)

References 13 publications

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“…However, they are not likely to persist at the same location for 3 years. Lipid emboli are less likely to be the cause, because the new GRE lesions were hypointense on diffusion-weighted images with a b value of 0 s/mm 2 (not shown) [11]. Calcified emboli are also less likely to be the cause, because only 2 of 12 patients with new GRE lesions had aortic atherosclerosis, a probable source of calcified emboli during surgery.…”

Section: Discussionmentioning

confidence: 99%

New Cerebral Lesions on T2*-Weighted Gradient-Echo Imaging after Cardiac Valve Surgery

Jeon

Lee²,

Kim

et al. 2010

Cerebrovasc Dis

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Background: It is well known that silent ischemic brain lesions on diffusion-weighted imaging (DWI) commonly occur after various interventional procedures or surgeries. However, to our knowledge, postoperative new lesions on T2*-weighted gradient-echo imaging (GRE) have never been explored. Methods: This prospective observational study enrolled 19 consecutive patients undergoing cardiac valve surgery. Preoperative and postoperative (within 7 days) GRE and DWI were performed. New GRE lesions were defined as signal loss lesions on postoperative GRE which were not observed on preoperative GRE. Long-term follow-up GRE was performed in a limited number of cases. Results: Twelve patients developed 26 small (<10 mm) new GRE lesions. Of these patients, 1 had a generalized seizure accompanied by confusion and facial weakness with DWI lesions, and 1 showed confusion of short duration without DWI lesions. Long-term follow-up GRE was performed 3 years after surgery in 4 patients. Of the 12 new GRE lesions in these 4 patients, 11 lesions were still observable on long-term follow-up GRE. Conclusions: New cerebral lesions on GRE after cardiac valve surgery are common and are presumed to be rapidly developed microbleeds and mostly asymptomatic. Further studies are needed to investigate the precise nature and clinical implications of new GRE lesions.

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Section: Discussionmentioning

confidence: 99%

New Cerebral Lesions on T2*-Weighted Gradient-Echo Imaging after Cardiac Valve Surgery

Jeon

Lee²,

Kim

et al. 2010

Cerebrovasc Dis

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“…The findings matched with an isolated cerebral fat embolism. An isolated cerebral fat embolism may create diagnostic dif- ficulty, and the use of magnetic resonance imaging findings for the brain may contribute to the diagnosis [6][7][8].…”

Section: Discussionmentioning

confidence: 99%

Cerebral Fat Embolism Diagnosed by Cognitive Disorder

Kotan¹,

Ayas²,

Sayan³

et al. 2014

EAJM

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Fat embolism syndrome is a rarely seen complication of skeletal trauma, and it is seen at a rate of 2-5% after fractures of the long bones of the lower extremities. Its classic triad-+consists of hypoxemia, petechial bleedings on the skin and neurological findings. These neurological findings are highly variable and non-specific, and they can present with lethargy, irritability, delirium, stupor, convulsion or coma. In this report, a male case is presented who was diagnosed with cerebral embolism due to acute cognitive disorder after a segmental tibial fracture.Key Words: Cerebral fat embolism, tibial fracture, acute cognitive disorder, diffusion-weighted MRI ÖzetYağ embolizmi sendromu, iskelet travmalarının nadir komplikasyonudur, alt ekstremite uzun kemik kırıkları sonrasında %2-5 oranında görülür. Klasik triadı; hipoksemi, ciltte peteşial kanamalar ve nörolojik bulgulardır. Nörolojik bulgular oldukça değişken ve nonspesifik olup baş ağrısı, letarji, irritabilite, deliryum, stupor, konvülzyon veya koma ile prezente olabilir. Bu yazıda, parçalı tibiya fraktürü sonrası akut kognitif bozukluk ile serebral embolizm tanısı alan erkek bir olgu sunulmuştur.Anahtar Kelimeler: Serebral yağ embolisi, tibiyal fraktür, akut kognitif bozukluk, difüzyon ağırlıklı MRG

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“…Though MRI findings are definite in a given clinical setting they alone are not specific and can be observed in diffuse axonal injury (DAI), and demyelination. [7] In a case of DAI the abnormal neurological features appear immediate after to injury and associated with loss of consciousness, whereas in fat embolism syndrome cerebral features appear generally after orthopedic intervention. In demyelination there will be no history of trauma and no restriction is seen on diffusion weighted images.…”

Section: Fat Embolism Syndrome Mimicker Of Diffuse Axonal Injury On Mmentioning

confidence: 97%

Fat embolism syndrome mimicker of diffuse axonal injury on magnetic resonance imaging

et al. 2012

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Cerebral fat embolism: diffusion-weighted magnetic resonance imaging findings

Abstract: DWI could be a sensitive tool for detecting cerebral fat embolism in the acute phase. It is recommended that DWI be included in the initial evaluation of cerebral fat embolism with MRI.

Cited by 51 publications

References 13 publications

New Cerebral Lesions on T2*-Weighted Gradient-Echo Imaging after Cardiac Valve Surgery

New Cerebral Lesions on T2*-Weighted Gradient-Echo Imaging after Cardiac Valve Surgery

Cerebral Fat Embolism Diagnosed by Cognitive Disorder

Fat embolism syndrome mimicker of diffuse axonal injury on magnetic resonance imaging

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