Accuracy of transcranial Doppler sonography for predicting cerebral infarction in aneurysmal subarachnoid hemorrhage

2006 ◽  
Vol 34 (8) ◽  
pp. 380-384 ◽  
Author(s):  
Ji-Yong Lee ◽  
Myeong Sub Lee ◽  
Kum Whang ◽  
Jai Min Lee ◽  
Seo-Hyun Kim ◽  
...  
2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Ekkehard Kunze ◽  
Mirko Pham ◽  
Furat Raslan ◽  
Christian Stetter ◽  
Jin-Yul Lee ◽  
...  

Background. If detected in time, delayed cerebral vasospasm after aneurysmal subarachnoid hemorrhage (SAH) may be treated by balloon angioplasty or chemical vasospasmolysis in order to enhance cerebral blood flow (CBF) and protect the brain from ischemic damage. This study was conceived to compare the diagnostic accuracy of detailed neurological examination, Transcranial Doppler Sonography (TCD), and Perfusion-CT (PCT) to detect angiographic vasospasm.Methods. The sensitivity, specificity, positive and negative predictive values of delayed ischemic neurological deterioration (DIND), pathological findings on PCT-maps, and accelerations of the mean flow velocity (MVF) were calculated.Results. The accuracy of DIND to predict angiographic vasospasm was 0.88. An acceleration of MFV in TCD (>140 cm/s) had an accuracy of 0.64, positive PCT-findings of 0.69 with a higher sensitivity, and negative predictive value than TCD.Interpretation. Neurological assessment at close intervals is the most sensitive and specific parameter for cerebral vasospasm. PCT has a higher accuracy, sensitivity and negative predictive value than TCD. If detailed neurological evaluation is possible, it should be the leading parameter in the management and treatment decisions. If patients are not amenable to detailed neurological examination, PCT at regular intervals is a helpful tool to diagnose secondary vasospasm after aneurysmal SAH.


2008 ◽  
Vol 15 (6) ◽  
pp. 630-636 ◽  
Author(s):  
Matthias F. Oertel ◽  
Wolfram Scharbrodt ◽  
Dorothee Wachter ◽  
Marco Stein ◽  
Andrea Schmidinger ◽  
...  

Neurosurgery ◽  
2005 ◽  
Vol 56 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Frank Hertel ◽  
Christof Walter ◽  
Martin Bettag ◽  
Maria Mörsdorf ◽  
R. Loch Macdonald ◽  
...  

Abstract OBJECTIVE: Cerebral vasospasm (VSP) is one of the most important risk factors for the development of a delayed neurological deficit after subarachnoid hemorrhage (SAH). Perfusion-weighted magnetic resonance imaging (pwMRI) provides the possibility of detecting tissue at risk for infarction. The objective of our study was to evaluate the feasibility and impact of pwMRI in the management of SAH patients. METHODS: From a consecutive series of 180 patients experiencing SAH and treated at our institution over a 3-year period, we identified 20 who underwent pwMRI during their acute illness. For these 20 patients, the results of pwMRI were compared with the results of diffusion-weighted MRI, transcranial Doppler sonography, and neurological examinations performed at the same time and with repeated pwMRI examinations of the same patient at different times. RESULTS: Nineteen of 20 patients showed perfusion changes predominantly in the time maps. Fifteen of 19 patients with changes in pwMRI had a neurological deficit at the same time. In 7 of 15 patients with neurological deterioration, transcranial Doppler sonography showed signs of VSP, whereas all 15 patients showed alterations in pwMRI. The areas of perfusion changes in pwMRI correlated well with the neurological deficits of the patients and were larger than the areas of changed diffusion in diffusion-weighted MRI performed at the same time. There were no clinical complications with regard to the pwMRI examinations. CONCLUSION: pwMRI is safe and helpful in the management of patients with VSP after SAH. The sensitivity of pwMRI is higher than that of transcranial Doppler sonography in the detection of decreased perfusion as a result of VSP. pwMRI can detect tissue at risk before definitive infarction occurs and therefore may lead to a change of therapy in those patients.


2017 ◽  
Vol 25 (1) ◽  
pp. 14 ◽  
Author(s):  
Jasminka DjelilovicVranic ◽  
Vanja BasicKes ◽  
Merita TiricCampara ◽  
Edina Djozic ◽  
Jasmin Kulenovic

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