Search results for "Diffusion-weighted magnetic resonance imaging"
showing 6 items of 6 documents
Hippocampal reversible lesions in a case of transient global amnesia
2018
We report the case of 55-year-old man that after an emotional stress showed retrograde and anterograde amnesia with impairment of orientation in space and time but undisturbed consciousness. A neurological examination excluded other neurological signs or symptoms. The amnesic syndrome resolved spontaneously within 24 hours and the hypothesis of transient global amnesia was placed. Brain CT scan and conventional MRI sequences did not show any relevant pathological findings but diffusion-weighted imaging (DWI) showed two millimetric bright spot of restricted diffusion in the right hippocampus; in a brain MRI follow-up those findings were no more appreciable. The diagnosis of transient global …
VESICAL IMAGING-REPORTING AND DATA SYSTEM – A NEW APPROACH TO BLADDER CANCER STAGING
2022
The aim: To present the assumptions and to show the usefulness of Vesical Imaging-Reporting and Data System (VI-RADS) based on multiparametric magnetic resonance imaging (mpMRI) in the diagnostic pathway management of patients with a bladder cancer. Materials and methods: The review is based on available literature from last 10 years from PubMed database and the Przegląd Urologiczny journal focusing on articles on VI-RADS. Overall, 18 articles were included. Presented magnetic resonance images come from the examinations of the patients who were diagnosed with bladder cancer from 2019 to 2021 at Department of Diagnostic Imaging in University Clinical Hospital in Opole, Poland. Conclusions: T…
Non-alcoholic Wernicke's encephalopathy: From MRI findings of a case to differential diagnosis checklist
2018
Wernicke's encephalopathy is a serious neurological disorder secondary to thiamine deficiency in alcoholics. However, rarely it affects non-alcoholics. Here we present a case of Wernicke's encephalopathy in a non-alcoholic 56-year-old female, treated by endoscopic surgery for a duodenal ulcer two years before. She came to our attention for a sudden onset of a neurological syndrome characterized by visual deficits, diplopia, confusion, spatial disorientation and loss of short-term memory. An MRI scan showed the typical MRI findings of Wernicke's encephalopathy, which are discussed together with the possible differential diagnosis.
Diffusion weighted magnetic resonance imaging in the diagnosis of reversible ischaemic deficits of the brainstem
2002
Objectives: To evaluate the sensitivity of diffusion weighted magnetic resonance imaging (MRI) for the diagnosis of clinically suspected reversible ischaemic deficits of the brainstem. Methods: A total of 158 consecutive patients presenting with acute signs of brainstem dysfunction were investigated using EPI diffusion weighted MRI within 24 hours of the onset of symptoms. High resolution T1 and T2 weighted imaging was performed as a follow up after a median of six days Results: Fourteen of the 158 patients had a complete clinical recovery within 24 hours (transitory ischaemic attack (TIA)), and 19 patients recovered in less than one week (prolonged reversible neurological deficit (RIND)). …
Utility of 3 Tesla diffusion-weighted magnetic resonance (DWMR) imaging for the characterisation of small solid renal tumours
2012
Purpose: To determine the utility of apparent diffusion coefficients (ADCs) for the characterisation of small solid renal lesions. Methods and Materials: 26 patients (GFR 30-60 mL/min) with 39 small (1-3 cm) solid renal masses [16 RCCs (10 clear cell types; 6 other types); 18 AMLs (10 fat-containing; 8 minimal-fat) and 5 oncocytomas] were examined on a 3 T system using DW-SS-EPI (b-values 0, 1000 s/mm2). The ADC of the lesions and the ADC of kidney were evaluated. Receiver operator characteristic analysis was performed to evaluate the diagnostic value of ADC for differentiating clear cell RCCs from other type RCCs, AMLs and oncocytomas. Results: The mean ADC of the lesions [1.22± 0.27 28 mm…