RÉSUMÉ
Objective: Our purpose was to reveal the efficiency of diffusion weighted imaging [DWI] in the diagnosis of encephalitis, and to determine the relation between the apparent diffusion coefficient [ADC] values, the onset of the clinical symptoms, and the lesion extent
Methods: Conventional magnetic resonance imaging [MRI] was performed in 17 patients with encephalitis diagnosed on the basis of laboratory, clinical and radiologic findings during 2009 and 2015. Based on the duration between the onset of the symptoms and the brain MRI findings, the patients were divided into three groups. ADC values of the encephalitis lesion, the lesions' topographic analysis score, deep gray matter involvement, patients' clinical situation and the duration of the arrival to the clinic was examined
Results: Mean ADC values were 0,988 +/- 0,335x10-3 mm2/s in group I [0-2 days], 1,045 +/- 0,347x10-3 mm2/s in Group-II [3-7 days], 1,451 +/- 0,225x10-3 mm2/s in Group-III [8 days and over]. The relation between the ADC values and the duration of the arrival, topographic analysis score, the relation between the patients' clinical situation and the deep gray matter involvement were found to be statistically significant. The deep gray matter involvement was demonstrated more clearly by FLAIR images when compared with DWI
Conclusion: Conventional MRI sequences may be insufficient in showing the encephalitis lesion. DWI must be added to the imaging modalities immediately in the cases suspected of having encephalitis
RÉSUMÉ
Breast arterial calcification [BAC], medial calcific sclerosis of small to medium-sized muscular arteries, is a benign finding of mammographic evaluation. Previous studies have shown the relationships between BAC and systemic disorders such as cardiovascular disease, diabetes mellitus and hypertension. The aim of this study was to determine the association between reduced bone mineral density and BAC. The study population consisted of 567 women who had both mammography and bone mineral density evaluation. BAC [+] and BAC [-] women were compared for age, body mass index, postmenopausal duration, number of deliveries, breastfeeding duration, DM, HT, lipid treatment, osteopenia, and osteoporosis. BAC was seen in mammographic evaluation of 179 women and 388 subjects without BAC accepted as the control group. There was a statistically significant relationship between age, postmenopausal duration, number of deliveries, history of DM, HT, lipid treatment and BAC. While the prevalence of osteopenia was higher in control group [52.8%], the rate of osteoporosis [48.7%] was higher in group with BAC. There was statistically significant relationship between BAC and osteoporosis in postmenopausal women. Determination of BAC in routine screening mammography might be helpful in both identifying women with risk of cardiovascular disease and osteoporosis