scholarly journals The Usefulness of Brain Magnetic Resonance Imaging with Mild Head Injury and the Negative Findings of Brain Computed Tomography

2013 ◽  
Vol 54 (2) ◽  
pp. 100 ◽  
Author(s):  
Du Su Kim ◽  
Min Ho Kong ◽  
Se Youn Jang ◽  
Jung Hee Kim ◽  
Dong Soo Kang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Head Injury ◽  
Magnetic Resonance ◽  
Brain Magnetic Resonance Imaging ◽  
Mild Head Injury ◽  
Resonance Imaging ◽  
Brain Computed Tomography ◽  
Negative Findings

Intermediate Short-Term Outcomes after Brain Computed Tomography and Magnetic Resonance Imaging in Neurology Outpatients

2001 ◽  
Vol 21 (6) ◽  
pp. 444-450 ◽  
Author(s):  
Philippe Demaerel ◽  
Erik Béatse ◽  
Kristiaan Roels ◽  
Vincent Thijs
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Short Term ◽  
Brain Computed Tomography

A new reference line for coronal head CT to align with MRI: development of a standardised approach

2020 ◽  
pp. 197140092097283
Author(s):  
Kerem Ozturk ◽  
Anthony Spano ◽  
David Nascene
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Intraclass Correlation ◽  
Angular Position ◽  
Magnetic Resonance Images ◽  
Reference Line ◽  
Resonance Imaging ◽  
Brain Computed Tomography ◽  
The Mean

Background and purpose There are great variations in how different technologists create the different imaging planes that can make a precise comparison of computed tomography and magnetic resonance imaging difficult. We aimed to identify a reference line for the coronal images on a computed tomography topography parallel to the posterior borderline of the brainstem (PB), matching standard coronal magnetic resonance imaging planes. Methods We retrospectively reviewed computed tomography topography images of 80 consecutive patients to determine a computed tomography plane to match the PB on magnetic resonance imaging. These included the tuberculum sella (TS)–anterior arch of the C1 vertebra (C1), TS–tip of dens axis (D), dorsum sellae (DS)–C1 and DS–D. We compared these methods of prescribing the coronal computed tomography plane to coronal magnetic resonance imaging planes by measuring the angles between TS–C1 and PB, TS–M and PB, DS–C1 and PB, DS–D and PB on midsagittal brain magnetic resonance images. Bland–Altman plots were created to assess intra-observer reliability. Results The angles between the PB line and each topogram-determined line are as follows: TS–C1, 10.40° ± 4.86°; TS–D, 22.46° ± 5.23°; DS–C1, 3.01° ± 3.16°; and DS–D, 11.53° ± 4.10°. The mean angles between the DS–C1 and the PB lines were significantly smaller than the mean angle between any other line (DS–D, TS–C1, or TS–D, all P < 0.001). Intra-observer agreement regarding the angular position of the reformatted coronal images on the lateral scout image was excellent (intraclass correlation coefficient >0.900, P < 0.05). Conclusions The DS–C1 is almost parallel to the PB and easily identifiable on the lateral scout topography of brain computed tomography. Utilising the DS–C1 line as the baseline for brain computed tomography could allow better corroboration with coronal magnetic resonance imaging angulation.

scholarly journals Ischemic Stroke of the Artery of Percheron with Normal Initial MRI: A Case Report

2010 ◽  
Vol 2010 ◽  
pp. 1-4 ◽  
Author(s):  
Guillaume Cassourret ◽  
Bertrand Prunet ◽  
Fabrice Sbardella ◽  
Julien Bordes ◽  
Olga Maurin ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Brain Magnetic Resonance Imaging ◽  
Symptomatic Patient ◽  
Resonance Imaging ◽  
Complex Anatomy ◽  
Artery Of Percheron ◽  
Thalamic Infarct ◽  
Head Computed Tomography

The artery of Percheron is a solitary trunk representing an uncommon anatomic variant that provides bilateral arterial supply to the paramedian thalami and the rostral midbrain. Occlusion of this artery results in bilateral thalamic and mesencephalic infarctions. The clinical diagnosis is difficult because the complex anatomy causes large clinical variability. We report a case of a comatose patient with normal early head-computed tomography and magnetic resonance imaging. A bilateral paramedian thalamic infarct due to an occlusion of the artery of Percheron was revealed two days later by a new head computed tomography. To our knowledge, this is the first report in the literature of a symptomatic patient presenting an acute Percheron stroke with normal early brain magnetic resonance imaging. Our case indicates that a normal initial magnetic resonance imaging cannot formally eliminate the diagnosis of acute stroke of the artery of Percheron. We discuss the causes of noncontributive brain magnetic resonance imaging at the onset of this acute Percheron stroke and the alternative diagnosis and therapy methods.

scholarly journals Acute Pancreatitis and Posterior Reversible Encephalopathy Syndrome: A Case Report

2016 ◽  
Vol 29 (9) ◽  
pp. 567 ◽  
Author(s):  
Vítor Magno Pereira ◽  
Luís Marote Correia ◽  
Tiago Rodrigues ◽  
Gorete Serrão Faria
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Emergency Department ◽  
Magnetic Resonance ◽  
Posterior Reversible Encephalopathy Syndrome ◽  
Epigastric Pain ◽  
Brain Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Posterior Reversible Encephalopathy ◽  
Reversible Encephalopathy

The posterior reversible encephalopathy syndrome is a neurological syndrome characterized by headache, confusion, visual disturbances and seizures associated with identifiable areas of cerebral edema on imaging studies. The authors report the case of a man, 33 years-old, leukodermic with a history of chronic alcohol and tobacco consumption, who is admitted to the emergency department for epigastric pain radiating to the back and vomiting with about six hours of evolution and an intense holocranial headache for two hours. His physical examination was remarkable for a blood pressure of 190/100 mmHg and tenderness in epigastrium. His analytical results revealed emphasis on amylase 193 U/L and lipase 934 U/L. During the observation in the emergency department,he presented a generalized tonic-clonic seizure. Abdominal ultrasonography was performed and suggestive of pancreatitis withoutgallstones signals. Head computed tomography showed subarachnoid haemorrhage and a small right frontal cortical haemorrhage. The brain magnetic resonance imaging done one week after admission showed areas of a bilateral and symmetrical T2 / FLAIR hyperintensities in the subcortical white matter of the parietal and superior frontal regions, suggesting a diagnosis of posterior reversible encephalopathy syndrome. Abdominal computed tomography (10 days after admission) demonstrated a thickened pancreas in connection with inflammation and two small hypodense foci in the anterior part of the pancreas body, translating small foci of necrosis. The investigation of a thrombophilic defect revealed a heterozygous G20210A prothrombin gene mutation. The patient was discharged without neurological sequelae and asymptomatic. The follow-up brain magnetic resonance imaging confirmed the reversal of the lesions, confirming the diagnosis.

Altered Brain Computed Tomography Perfusion in Patients With Fluctuating Lacunar Syndrome and Normal Magnetic Resonance Imaging

2016 ◽  
Vol 73 (3) ◽  
pp. 348 ◽  
Author(s):  
Salvatore Rudilosso ◽  
Xabier Urra ◽  
Oscar Chirife ◽  
Ángel Chamorro
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Computed Tomography Perfusion ◽  
Brain Computed Tomography ◽  
Lacunar Syndrome
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