scholarly journals Magnetic Resonance Imaging and Computed Tomography in Emergency Assessment of Patients with Suspected Acute Stroke: A Prospective Comparison

2021 ◽  
Vol 15 (6) ◽  
pp. 1898-1902
Author(s):  
Adnan Ahmed ◽  
Memona Nazir ◽  
Ajmaal Jami ◽  
Muhammad Tahir ◽  
Mahnoor Khalil ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Acute Stroke ◽  
Clinical Diagnosis ◽  
Test Method ◽  
Resonance Imaging ◽  
Prospective Comparison ◽  
Acute Cerebral Ischemia ◽  
Study Results

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.

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 ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Acute Stroke ◽  
Resonance Imaging ◽  
Prospective Comparison

scholarly journals Modern Imaging Modalities in the Assessment of Acute Stroke

Folia Medica ◽  
2014 ◽  
Vol 56 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Dora K. Zlatareva ◽  
Nikoleta I. Traykova
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
At Risk ◽  
Magnetic Resonance ◽  
Acute Stroke ◽  
Brain Tissue ◽  
Ct Angiography ◽  
Imaging Modalities ◽  
Minor Stroke ◽  
Resonance Imaging

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.

scholarly journals Magnetic Resonance Imaging and Multidetector Computed Tomography Evaluation of Craniovertebral Junction Abnormalities

2021 ◽  
Vol 8 (10) ◽  
pp. 532-536
Author(s):  
Abhishek Biswas ◽  
Nihar Ranjan Sarkar ◽  
Alak Pandit
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Congenital Anomalies ◽  
Craniovertebral Junction ◽  
Resonance Imaging ◽  
Systematic Classification ◽  
Study Results

BACKGROUND The craniovertebral junction is a complex articulation between occiput, atlas, axis and supporting ligaments enclosing the soft tissue structures of cervicomedullary junction which includes medulla, spinal cord and lower cranial nerves. The incidence of different types of CVJ anomalies varies with demographic environment & ill-defined genetic factors. CVJ anomalies are more frequently found in Indian subcontinent than anywhere else in the world. Even in India, these anomalies are more frequently documented from Bihar, Uttar Pradesh, Rajasthan and Gujarat. The reason for this geographical clustering is more speculative. The CVJ anomalies can be either due to bony or soft tissue anomalies. They are common in all age groups and almost equal in both sex groups. The anomalies can be due to congenital or acquired causes. There has been a renewed interest in the normal anatomy & pathological lesions of CVJ anomalies with dynamic xrays, computed tomography (CT) and magnetic resonance imaging (MRI). The clinical features are often delayed up to 2 nd or 3rd decade, since they are subtle and often missed. Various congenital anomalies and acquired disease processes can affect the craniovertebral junction. They often cause diagnostic dilemmas. Only few studies have been conducted in this regard. This study is an attempt to define importance of precise diagnosis for pre-treatment evaluation and systematic classification of CVJ abnormalities with MRI and multi-detector computed tomography (MDCT). METHODS We conducted this cross-sectional descriptive study with 55 patients, who had been referred to us for CT / MRI from Department of Neurology. 3 Tesla MRI (GE Healthcare) and 16 slice MDCT (Philips) were used in this study. RESULTS In our study, congenital anomalies were the most common type of CVJ abnormality followed by degenerative changes and trauma. MRI proved to be better at detecting soft tissue abnormalities and assessing spinal cord compression, although CT was very much accurate at demonstrating bony lesions with short scan times and ability to reconstruct in three orthogonal planes. CONCLUSIONS CT and MRI cannot be compared in imaging the craniovertebral junction and should be complementary to each other. KEYWORDS Craniovertebral Junction, MRI, MDCT

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