Role of diffusion weighted imaging (DWI) in detection and characterization of cerebral stroke

2021 ◽  
Vol 12 (2) ◽  
pp. 88-91
Author(s):  
M T Makada ◽  

Background: DW MRI is a relatively recent imaging technique in which water self-diffusion is a source of contrast on MR images. 1Because cytotoxic edema occurs in just a few minutes of a critical decrease in cerebral blood flow, DWI may show most acute infarctions. This is particularly useful when thrombolytic therapy, which can only be used within a short window of opportunity, is considered. Also, DWI identifies acute lesions in patients with multiple chronic ischemic lesions. It also identifies the new extension of the previous ischemic lesions. Methodology: 50 patients with clinical signs and symptoms of stroke who underwent conventional MR imaging of brain were randomly considered for this study. These patients were prospectively subjected for DWI along with conventional MRI study. DW images were evaluated for the calculation of ADC values and ADC maps. Result: The age range of patients in this group varied from 5 years to 82 years; majority of patients being in 51 to 70 years age group. 28 patients were male and 22 were female. Of the 50 patients in this group, the MR study was performed in time interval ranging from within 6 hours after the initial symptom onset upto 4 to 7 days time interval between onset of symptoms and study. DWI imaging shows very high sensitivity compared to T2 weighted imaging particularly imaging within first 12 hours of symptoms onset. After 12 hours DWI and T2 weighted imaging show almost equal sensitivity for lesion detection.

Author(s):  
Herbert Stimmer ◽  
Lucas Ritschl ◽  
Carolin Goetz ◽  
Andreas Kolk ◽  
Benedikt Hofauer ◽  
...  

Purpose The purpose of the present study was to investigate the degree and clinical relevance of synovitis in craniomandibular dysfunction. Materials and Methods In total, 140 temporomandibular joints were examined using a 3 T MRI scanner. Quantitative analysis of synovial enhancement was performed and interrelated with arthrosis deformans, degenerative disc disease, joint effusion, bone marrow edema and restriction of motion. Results We found a statistically high and significant correlation between the degenerative changes as mentioned above and the intensity of synovial enhancement. Conclusion The study shows that typical MRI findings in CMD patients are often combined with signs of synovitis. Presumably joint inflammation has an effect on the clinical signs and symptoms and also the prognosis of CMD. These results should be taken into consideration when selecting treatment. Key Points:  Citation Format


Geriatrics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 5
Author(s):  
Donatella Rita Petretto ◽  
Gian Pietro Carrogu ◽  
Luca Gaviano ◽  
Lorenzo Pili ◽  
Roberto Pili

Over 100 years ago, Alois Alzheimer presented the clinical signs and symptoms of what has been later called “Alzheimer Dementia” in a young woman whose name was Augustine Deter [...]


Pituitary ◽  
2020 ◽  
Author(s):  
Eliza B. Geer ◽  
Roberto Salvatori ◽  
Atanaska Elenkova ◽  
Maria Fleseriu ◽  
Rosario Pivonello ◽  
...  

The original version of the article unfortunately contained an error in the first name and the surname of one of the authors in the author group. The last author name was incorrectly published as ‘F. Pecori Giraldi’ and the corrected name is ‘Francesca Pecori Giraldi’ (First name: Francesca; Surname: Pecori Giraldi).


2016 ◽  
Vol 15 (2) ◽  
pp. 220-223 ◽  
Author(s):  
Shadi Saghafi ◽  
Reza Zare-Mahmoodabadi ◽  
Narges Ghazi ◽  
Mohammad Zargari

Objective: The purpose of this study was to retrospectively analyze the demographic characteristics of patients with central giant cell granulomas (CGCGs) and peripheral giant cell granulomas (PGCGs) in Iranian population.Methods: The data were obtained from records of 1019 patients with CGCG and PGCG of the jaws referred to our department between 1972 and 2010. This 38-year retrospective study was based on existing data. Information regarding age distribution, gender, location of the lesion and clinical signs and symptoms was documented. Results: A total of 1019 patients were affected GCGLs including 435 CGCGs and 584 PGCGs during the study. The mean age was 28.91 ± 18.16. PGCGs and CGCGs had a peak of occurrence in the first and second decade of life respectively. A female predominance was shown in CGCG cases (57.70%), whereas PGCGs were more frequent in males (50.85%). Five hundred and ninety-eight cases of all giant cell lesions (58.7 %) occurred in the mandible. Posterior mandible was the most frequent site for both CGCG and PGCG cases. The second most common site for PGCG was posterior maxilla (21%), whereas anterior mandible was involved in CGCG (19.45%). The majority of patients were asymptomatic. Conclusions: In contrast to most of previous studies PGCGs occur more common in the first decade and also more frequently in male patients. Although the CGCGs share some histopathologic similarities with PGCGs, differences in demographic features may be observed in different populations which may help in the diagnosis and management of these lesions.Bangladesh Journal of Medical Science Vol.15(2) 2016 p.220-223


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
A. M. Hinson ◽  
C. W. Smith ◽  
E. R. Siegel ◽  
B. C. Stack

The role of infection in the etiology of bisphosphonate-related osteonecrosis of the jaw (BRONJ) is poorly understood. Large-scale epidemiological descriptions of the histology and microbiology of BRONJ are not found in the literature. Herein, we present a systematic review of BRONJ histology and microbiology (including demographics, immunocompromised associations, clinical signs and symptoms, disease severity, antibiotic and surgical treatments, and recovery status) validating that infection should still be considered a prime component in the multifactorial disease.


2013 ◽  
Vol 18 (1) ◽  
pp. 187-193 ◽  
Author(s):  
Shuichiro Yoshizawa ◽  
Takeshi Suganuma ◽  
Masayuki Takaba ◽  
Yasuhiro Ono ◽  
Takuro Sakai ◽  
...  

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