scholarly journals Magnetic resonance imaging and computed tomography in emergency assessment of patients with suspected acute stroke: a prospective comparison

The Lancet ◽  
2007 ◽  
Vol 369 (9558) ◽  
pp. 293-298 ◽  
Author(s):  
Julio A Chalela ◽  
Chelsea S Kidwell ◽  
Lauren M Nentwich ◽  
Marie Luby ◽  
John A Butman ◽  
...  
2021 ◽  
Vol 15 (6) ◽  
pp. 1898-1902
Author(s):  
Adnan Ahmed ◽  
Memona Nazir ◽  
Ajmaal Jami ◽  
Muhammad Tahir ◽  
Mahnoor Khalil ◽  
...  

Background: Timely diagnosis has become important because the safety and efficacy of acute cerebral ischemia depend on rapid and accurate assessment and treatment within a few hours of the onset of symptoms.The overall incidence of stroke is about 2.4 per thousand people, with a small geographical difference. Studies have shown that the echo MRI gradient is as accurate as CT within 6 hours of the onset of symptoms in patients with acute stroke. Methodology: This study is a one-time prospective comparison of CT and MRI in acute stroke assessment. The study was conducted from April 2020 to September 2020at the Hayatabad Medical Complex in Peshawar, with the ethical approval of the hospital ethical review committee. Regardless of the onset date, the severity of symptoms, or final clinical diagnosis, a series of patients suspected of further referral to a stroke staff at the hospital are eligible. Results: Results showed that out of 178 patients referred for clinical suspicion of stroke, acute stroke corresponds to almost two-thirds of the final clinical diagnosis. MRI found 92 out of 178 acute strokes and 29 out of 178 CT. According to study results, the MRI has a higher frequency for detecting any acute stroke (ischemic or hemorrhagic) compared with CT (p <0.0001). All four readers agreed that 143 patients with MRI and 103 patients with CT respectively, 143 patients (80%, 76–84%) had an acute stroke. Conclusion: MRI is better for detecting acute ischemia than CT and can detect both acute and chronic bleeding. This should therefore be the preferred test method for accurate diagnosis of patients with suspected acute stroke. Samples of patients cover a variety of diseases that may arise in an emergency with a suspected stroke so that the results can be applied immediately in the clinic. Keywords: Magnetic Resonance Imaging, Computed tomography, Acutestroke.


Folia Medica ◽  
2014 ◽  
Vol 56 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Dora K. Zlatareva ◽  
Nikoleta I. Traykova

Abstract The AIM of this review was to present the modern concepts of diagnostic imaging in acute stroke. Neuroimaging in acute stroke aims at diagnosing the condition as early as possible and assessing the extent of parenchymal perfusion and the intracranial vessels patency. A modern approach would involve a combination of various imaging modalities as multidetector computed tomography and high field magnetic resonance imaging. A non-enhanced computed tomography (CT) is used to detect hemorrhage or to identify early signs of ischemic stroke. CT angiography finds evidence of intravascular thrombi or significant stenoses, and CT perfusion displays brain tissue at risk of irreversible alterations that can be salvaged therapeutically. Magnetic resonance imaging (MRI) is a more sensitive modality than CT in diagnosing acute brain ischemia. MR diffusion-weighted imaging is more sensitive than conventional MR sequences in hyperacute stage. MR angiography as a non-invasive and non-ionizing imaging method is used as an alternative modality to CT angiography. To find brain tissue at risk diffusion- and perfusion-weighted magnetic resonance imaging modalities are used. The authors present briefly the modern neuroimaging modalities used in patients with transient ischemic attack, minor stroke and venous infarction. By combining different imaging techniques in a multimodal approach we can acquire the information necessary for therapeutic planning and differentiate patients who need thrombolysis.


2015 ◽  
Vol 84 (1) ◽  
Author(s):  
Katarina Šurlan Popovič ◽  
Urška Lamot

Stroke is the third most common cause of death in the developed world and the leading cause of adult disability. The goals of an imaging evaluation for acute stroke when presented with patients with raised clinical suspicion of an acute stroke are to obtain accurate information about the momentary state of brain tissue. A comprehensive evaluation is best achieved with a combination of computed tomography or magnetic resonance imaging technique. Unenhanced computed tomography and magnetic resonance imaging can help rule out hemorrhage and identify early morphologic signs of acute brain ischemia. Computed tomography and magnetic resonance perfusion imaging and magnetic resonance diffusion weight imaging, can help depict unsalvageable ischemic brain tissue and the area of penumbra. Computed tomography angiography and magnetic resonance angiography are widely used techniques for assessment of both, the intracranial and neck circulation.


Sign in / Sign up

Export Citation Format

Share Document