scholarly journals Congenital diverticulum of the left ventricle – diagnosis with echocardiography, ventriculography and magnetic resonance imaging: clinical case

2020 ◽  
Vol 26 (3) ◽  
pp. 74-82
Author(s):  
Gloria Adam ◽  
Ina Tsareva ◽  
Galina Kirova ◽  
Ivo Petrov
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Left Ventricle ◽  
Clinical Symptoms ◽  
Resonance Imaging ◽  
Cardiac Wall ◽  
Invasive Method ◽  
Electrocardiographic Changes ◽  
Magnetic Resonance Imaging Mri ◽  
Myocardial Crypts

Myocardial diverticula are rare and incidental fi ndings. They are most probably congenital anomalies of the cardiac wall, mainly of the left ventricle (LV), which in the majority of the cases are associated with other anomalies – cardiac, vascular or thoraco-abdominal. The lack of specifi c clinical symptoms and electrocardiographic changes in the presence of cardiac diverticulum, make them most commonly an incidental fi nding during a diagnostic imaging examination. The diagnosis of LV diverticulum can be made with echocardiography, left ventriculography, computed tomography or magnetic-resonance imaging (MRI). Among all, MRI gives the best morphologic assessment of the ventricular wall, the location and the relation of the diverticulum to surrounding structures and its dynamic behaviour during systole and diastole. MRI can rule out infl ammatory, traumatic and ischemic cardiac pathology, and cardiomyopathy, and thus differentiate the diverticulum from another entity – myocardial crypts, pathologically formed focal aneurysm or pseudoaneurysm of the LV. Therefore, MRI is the preferred non-invasive method for evaluating the cardiac wall in detail and helps to differentiate and defi nitively diagnose congenital cardiac diverticulum, which in most cases does not require therapeutic intervention.

Subacute Pituitary Apoplexy: Clinical and Magnetic Resonance Imaging Characteristics

Neurosurgery ◽  
1990 ◽  
Vol 27 (2) ◽  
pp. 214-219 ◽  
Author(s):  
Roberta P. Glick ◽  
James A. Tiesi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pituitary Apoplexy ◽  
Clinical Symptoms ◽  
Resonance Imaging ◽  
Mri Scan ◽  
Imaging Characteristics ◽  
Invaluable Tool ◽  
Magnetic Resonance Imaging Mri

Abstract Between 1987 and 1988, we utilized magnetic resonance imaging (MRI) in the diagnosis of seven cases of “subacute” pituitary apoplexy. that is, intra-adenomatous pituitary hemorrhage associated with clinical symptoms atypical of acute pituitary apoplexy. These symptoms lasted longer than 24 hours and included visual changes in four patients, headache in five, and seizures, endocrine dysfunction, and oculomotor palsy in one each. Estimates of the ages of the hemorrhages were also possible based on characteristics on the MRI scan and ranged from 48 hours to more than 14 days. Four of our seven patients underwent transsphenoidal decompression at which time the presence of intratumoral hemorrhage was confirmed. The remaining three patients have been followed as outpatients with serial MRI examinations and have shown improvement in clinical symptoms and stabilization of the radiological picture. From our series of patients, it is now apparent that the MRI scan is an invaluable tool in identifying this subacute form of intra-adenomatous pituitary hemorrhage and has proven especially useful as a means of therapeutic planning and follow-up care in patients presenting with symptoms not typical of classic pituitary apoplexy.

scholarly journals Magnetic resonance imaging in diagnosis of thoracic disc herniations: correlation of radiological and clinical symptoms

2011 ◽  
Vol 10 (2) ◽  
pp. 77-82
Author(s):  
P. V. Krotenkov ◽  
A. M. Kiselyov ◽  
S. V. Kotov ◽  
O. V. Krotenkova
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Management Strategy ◽  
Clinical Symptoms ◽  
Neurological Status ◽  
Resonance Imaging ◽  
Small Disc ◽  
Disc Herniations ◽  
Magnetic Resonance Imaging Mri ◽  
Thoracic Disc

Magnetic resonance imaging (MRI) was used for diagnosis of thoracic disc herniations and for management strategy determination. 24 symptomatic patients underwent MRI using sagittal T1 and T2-weighted spine echo and axial multiplanar gradient refocused images. Disc herniations were classified according to their size, location in the spinal canal and to the extent of cord compromise. MRI data correlated with the neurological status in all cases and assisted in the management strategy determination. 10 (41,7%) patients with small disc herniations and compression of subarachnoid space demonstrated pseudoradicular syndrome and were managed conservatively. 14 (58,3%) patients with medium or large disc herniations and compression of the cord demonstrated myelopathy or radicularpathy syndrome and were managed surgically. Our results show that MRI is a useful diagnostic tool for diagnosis, management strategy determination and assessment of treatment results.

Regional assessment of wall curvature and wall stress in left ventricle with magnetic resonance imaging

1999 ◽  
Vol 277 (3) ◽  
pp. H901-H910 ◽  
Author(s):  
Philippe Balzer ◽  
Alain Furber ◽  
Stéphane Delépine ◽  
Frédéric Rouleau ◽  
Franck Lethimonnier ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Left Ventricle ◽  
Wall Stress ◽  
Left Ventricular ◽  
Cine Mri ◽  
Short Axis ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Systolic Wall Stress

Left ventricular functional abnormalities are associated with regional increases of wall stress and modifications of wall curvature. This study describes the integration of the short-axis and long-axis wall curvatures for determining peak systolic wall stress. Quantification was realized with cine magnetic resonance imaging (MRI) from the location of the endocardial and epicardial borders of the left ventricle on pairs of consecutive short-axis sections. Fifteen normal volunteers were subjected to cine MRI, and different methods of calculating peak systolic wall stress were compared. A short-axis analysis showed a 55 ± 13% increase of the circumferential mean of the peak systolic wall stress between apical and basal sections. Regarding the curvature, no significant increase of wall stress was observed except on the septal wall (31 ± 18%). Short-axis studies proved to be insufficient for determining the regional variations of left ventricular wall stress and for providing normal reference values for the location of abnormal regions in patients.

scholarly journals Arthrography of the temporomandibular joint: main diagnostic and therapeutic applications

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Eva Levring Jäghagen ◽  
Jan Ahlqvist
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Temporomandibular Joint ◽  
Alternative Technique ◽  
Resonance Imaging ◽  
Specific Patient ◽  
Therapeutic Applications ◽  
Invasive Method ◽  
Magnetic Resonance Imaging Mri

AbstractArthrography is an alternative technique for diagnosing soft tissue derangements of the temporomandibular joint (TMJ) when magnetic resonance imaging (MRI) is not an option. This can be due to contraindications to perform a MRI on a specific patient or when MRI is not applicable for specific diagnoses of soft tissue derangements of the TMJ. It is an invasive method and can be used not only for diagnostics but also for therapeutic injections e.g. administration of corticosteroids

Magnetic resonance imaging of the gallbladder: spectrum of abnormalities

2007 ◽  
Vol 48 (5) ◽  
pp. 476-482 ◽  
Author(s):  
K. M. Elsayes ◽  
E. P. Oliveira ◽  
V. R. Narra ◽  
F. M. EL-Merhi ◽  
J. J. Brown
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Symptoms ◽  
Malignant Tumors ◽  
Gallbladder Wall ◽  
Diagnostic Study ◽  
Resonance Imaging ◽  
Mr Cholangiopancreatography ◽  
Tissue Contrast ◽  
Magnetic Resonance Imaging Mri

Various pathologies involving the gallbladder can manifest clinically, producing nonspecific clinical symptoms and making diagnosis difficult and challenging. Real-time sonography is the most widely used diagnostic study for the gallbladder and the primary screening examination of choice. With increasing use of magnetic resonance imaging (MRI) and MR cholangiopancreatography (MRCP), gallbladder pathology is frequently seen. Understanding the basic patterns of various disease manifestations and appearance on MRI is the key to making an accurate diagnosis. Given its inherent tissue contrast and contrast sensitivity, MRI in conjunction with MRCP can be a very valuable test in evaluating gallbladder pathology. Gallbladder pathology can be classified into congenital (such as absence), inflammatory (acute, hemorrhagic, and chronic cholecystitis), traumatic, benign (polyps) and malignant tumors (gallbladder carcinoma and lymphoma), and other disease processes can be seen in cholelithiasis, cholesterosis, thickened gallbladder wall, and Mirrizzi syndrome.

scholarly journals Syringomyelia and Chiari Malformation in Cavalier King Charles Spaniels – Magnetic Resonance Imaging, Pharmacological and Surgical Treatment

2013 ◽  
Vol 57 (1) ◽  
pp. 131-133 ◽  
Author(s):  
Andrzej Pomianowski ◽  
Zbigniew Adamiak
Keyword(s):  
Magnetic Resonance Imaging ◽  
Surgical Treatment ◽  
Magnetic Resonance ◽  
Chiari Malformation ◽  
Clinical Symptoms ◽  
Pharmacological Therapy ◽  
Resonance Imaging ◽  
Short Term ◽  
Low Field ◽  
Magnetic Resonance Imaging Mri

Abstract Nine dogs with Chiari malformation and syringomyelia, which were subjected to low-field magnetic resonance imaging (MRI) test, were described. The results of MRI examinations were presented. The outcomes of pharmacological therapy involving two dogs and surgical treatment of one dog were also described. The applied treatments produced positive short-term outcomes, and they eliminated the clinical symptoms of the disease.

Top-Ten Tips for Imaging the Brachial Plexus with Ultrasound and MRI

2019 ◽  
Vol 23 (04) ◽  
pp. 405-418 ◽  
Author(s):  
James F. Griffith ◽  
Radhesh Krishna Lalam
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brachial Plexus ◽  
Muscle Denervation ◽  
Resonance Imaging ◽  
Neural Injury ◽  
Clinical Indications ◽  
Magnetic Resonance Imaging Mri ◽  
High Level ◽  
Extensive Involvement

AbstractWhen it comes to examining the brachial plexus, ultrasound (US) and magnetic resonance imaging (MRI) are complementary investigations. US is well placed for screening most extraforaminal pathologies, whereas MRI is more sensitive and accurate for specific clinical indications. For example, MRI is probably the preferred technique for assessment of trauma because it enables a thorough evaluation of both the intraspinal and extraspinal elements, although US can depict extraforaminal neural injury with a high level of accuracy. Conversely, US is probably the preferred technique for examination of neurologic amyotrophy because a more extensive involvement beyond the brachial plexus is the norm, although MRI is more sensitive than US for evaluating muscle denervation associated with this entity. With this synergy in mind, this review highlights the tips for examining the brachial plexus with US and MRI.

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