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Microstructural brain changes in acromegaly: quantitative analysis by diffusion tensor imaging

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45-10.1259-bjr.20130801.pdf (649.6Kb)
Date
2014-06-01
Author
KILICARSLAN, R.
ILHAN, M. M.
Alkan, ALPAY
ARALASMAK, AYŞE
AKKOYUNLU, M. E.
KART, L.
TASAN, ERTUĞRUL
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Abstract
Objective: We examined brain diffusion changes of patients with acromegaly. We searched whether there are differences in apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values between remission and nonremission patients with acromegaly and investigated any effect of time of hormone exposure on diffusion metrics. Methods: The values of FA and ADC were calculated in a total of 35 patients with acromegaly and 28 control subjects. Patients were subdivided into remission and non-remission groups. We looked at brain FA and ADC differences among the groups and looked for any relation between the diffusion changes and time of hormone exposure among the patients with acromegaly. Results: We found decreased FA and increased ADC values in some of the growth hormone responsive areas. There were no significant brain diffusion changes between remission and non-remission groups. The most affected areas were the hypothalamus, parietal white matter and pre-motor cortex in patients with acromegaly. In terms of hormone exposure time among the patients with acromegaly, there was no effect of disease duration on brain microstructural changes. Conclusion: All patients with acromegaly showed increased brain diffusion with no relation to disease duration and treatment status. We suggested that in patients with acromegaly, brain damage had already occurred in the subclinical period before symptom onset. Advances in knowledge: This study contributes to the understanding of the mechanisms in acromegaly.
Subject
KILICARSLAN R., ILHAN M. M. , Alkan A., ARALASMAK A., AKKOYUNLU M. E. , KART L., TASAN E., -Microstructural brain changes in acromegaly: quantitative analysis by diffusion tensor imaging-, BRITISH JOURNAL OF RADIOLOGY, cilt.87, 2014
URI
https://hdl.handle.net/20.500.12645/2675
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BEZMIALEM VAKIF UNIVERSITY

About us |Policies | Library | Contact us | Send Feedback | Sitemap | Admin

Bezmialem Vakıf Üniversitesi, Adnan Menderes Bulvarı Vatan Caddesi 34093 Fatih, İstanbul / TURKEY
Copyright © Bezmialem Vakıf Üniversitesi

Creative Commons Lisansı
Bezmialem Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

OpenAccess@BVU

Support by  UNIREPOS