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Diffusion tensor magnetic resonance imaging in the diagnosis of white matter lesion in middle-aged patients with uncomplicated essential hypertension

https://doi.org/10.14412/2074-2711-2018-2-20-26

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Abstract

Diffusion tensor magnetic resonance imaging (DT-MRI) is the only noninvasive technique that makes it possible to study white matter microstructure in vivo and to quantify the images obtained.

Objective: to study white matter in middle-aged treatment-naХve patients with uncomplicated grade 1–2 essential hypertension (EH), by using DT-MRI.

Patients and methods. The investigation enrolled 82 people aged 40–59 years (41 patients with EH and 41 healthy individuals (a control group)). Twenty-four blood pressure monitoring and brain MRI were performed in different modes (T1 MPRAGE, T2 TSE, T2 FLAIR, and DTI).

Results. White matter hyperintensities (WMHs) were found in 7.3% of the healthy individuals and in 53.7% of the hypertensive patients (p=0.0002). The latter had significantly lower fractional anisotropy (FA) values in the white matter of the left inferior frontal gyrus than the healthy individuals (0.39±0.06 and 0.45±0.09, respectively; p<0.001). FA was lower in the hypertensive patients than in the healthy individuals not only in the presence of WMHs (the left inferior frontal gyrus white matter was 0.397±0.071 and 0.45±0.09, respectively; p=0.009; the genu of the corpus callosum was 0.79±0.04 and 0.81±0.05, respectively; p=0.045), but also in the absence of WMHs (the left inferior frontal gyrus white matter was 0.378±0.073 and 0.45±0.09, respectively; p=0.0007). Discussion. The treatment-naХve patients with uncomplicated grade 1–2 EH with short-term (2,3 year) duration were found to have significantly lower FA values in the left inferior frontal gyrus white matter than the healthy normotensive subjects of the same age. Thus, the microstructural integrity of white matter is impaired in middle-aged hypertensive patients even at the earliest disease stages.

Conclusion. Middle-aged treatment-naive patients with uncomplicated grade 1–2 EH have lower FA in the left inferior frontal gyrus white matter even in the absence of WMHs. 

About the Authors

V. A. Parfenov
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
Russian Federation

Department of Nervous System Diseases and Neurosurgery 

Contact: Vladimir Anatolyevich Parfenov 

11, Rossolimo St., Moscow 119021



T. M. Ostroumova
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
Russian Federation

Department of Nervous System Diseases and Neurosurgery 

11, Rossolimo St., Moscow 119021



O. D. Ostroumova
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia; A.I. Evdokimov Moscow State Medical University of Medicine and Dentistry, Ministry of Health of Russia
Russian Federation
Department of Clinical Pharmacology and Internal Propedeutics, Faculty of General Medicine, Sechenov University; Department of Intermediate-Level Therapy and Occupational Diseases, A.I. Evdokimov Moscow State Medical University of Medicine and Dentistry


V. A. Perepelov
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
Russian Federation

Department of Nervous System Diseases and Neurosurgery 

11, Rossolimo St., Moscow 119021



V. A. Perepelova
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
Russian Federation

Department of Nervous System Diseases and Neurosurgery 

11, Rossolimo St., Moscow 119021



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For citation:


Parfenov V.A., Ostroumova T.M., Ostroumova O.D., Perepelov V.A., Perepelova V.A. Diffusion tensor magnetic resonance imaging in the diagnosis of white matter lesion in middle-aged patients with uncomplicated essential hypertension. Neurology, Neuropsychiatry, Psychosomatics. 2018;10(2):20-26. (In Russ.) https://doi.org/10.14412/2074-2711-2018-2-20-26

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ISSN 2074-2711 (Print)
ISSN 2310-1342 (Online)