1,721,006 research outputs found
The role of MRI in the valuation of disorders involving the bone marrow
No full textMR is the most accurate imaging technique in bone marrow evaluation since it allows to recognize and distinguish its red and yellow components. MR shows high sensitivity but low specificity. At present, its role in bone marrow diseases evaluation is that of depicting the extent of the disease process and monitoring the effects of treatment
Bilateral simultaneous cerebellar infarction in the medial branches of the posterior inferior cerebellar artery territories.
No full textWe present an unusual case of simultaneous bilateral cerebellar infarction in the territory of the medial and intermediate branches of the posterior inferior cerebellar arteries (mPICA). The patient, a 57-yr-old woman, had no risk factors for cerebrovascular disease but a long-standing hypertension. Pathogenetic hypotheses of this unusual ischemic site of lesion may be referred to: A) two PICAs arising from an occluded basilar artery; B) both medial branches arising from the same PICA on one side; C) a haemodynamic mechanism with hypoperfusion in the most peripheral branches of the arteries; D) a double, simultaneous embolic stroke in mPICAs territory. Based on clinical course, supraortic duplex-scan, echocardiography, MRI, angioMRI and CT scans, and digital subtraction angiography, none of these hypotheses could be clearly associated with the pathogenesis of the lesion. Nevertheless, we propose that an anomalous common mPICA for both cerebellar territories should represent the necessary condition for the ischemic insult and, simultaneously, other factors should intervene as possible determining events
Anomalie del setto pellucido e sintomi positivi in soggetti schizofrenici. Uno studio con Risonanza Magnetica Nucleare”.
No full textRole of magnetic resonance in shoulder disease
No full textNext to the knee, the shoulder is the most common joint to be referred for MRI. Excellent soft tissue contrast and multiplanar acquisition provide optimal assessment of muscle, tendons, hyaline and fibrous cartilage, joint capsule, fat, bursae and bone marrow. In this article the most common indications for shoulder MRI are reviewed and discussed, but we focused primarily on the rotator cuff syndrome and shoulder instability. Correct diagnosis requires the use of appropriate pulse sequences and imaging planes, proper patient positioning, and a satisfactory surface coil. Moreover, technical improvements continuously augment the ability of MRI to study the shoulder; for example Magnetic Resonance arthrography is superior to the other imaging techniques in evaluation of glenohumeral joint. This interdependence between technical development in MRI and clinical advance in shoulder therapy ensures that MRI will continue to play an important role in the routine management of patients with shoulder disease
Ridotto corpus callosum brain ratio (CCBR) in pazienti schizofrenici in assenza di una correlazione con misure lineari del corpo calloso: studio di risonanza magnetica nucleare
No full textAnomalie del setto pellucido e sintomi positivi in soggetti schizofrenici. Uno studio con Risonanza Magnetica Nucleare
No full textMRI in the acute phase of spinal cord traumatic lesions: Relationship between MRI findings and neurological outcome
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