한빛사논문
- 조회229
Hyun Gi Kim, Na-Young Shin , Yoonho Nam, Eunkyeong Yun, Uicheul Yoon, Hye Sun Lee, Kook Jin Ahn
From the Department of Radiology, Eunpyeong St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea (H.G.K.); Department of Radiology, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea (N.Y.S., K.J.A.); Division of Biomedical Engineering, Hankuk University of Foreign Studies, Yongin, Republic of Korea (Y.N.); Department of Biomedical Engineering, College of Bio and Medical Sciences, Daegu Catholic University, Daegu, Republic of Korea (E.Y., U.Y.); and Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea (H.S.L.).
Address correspondence to N.Y.S.
Abstract
Background
Dilated perivascular spaces (dPVS) are associated with aging and various disorders; however, the effect of age on dPVS burden in young populations and normative data have not been fully evaluated.
Purpose
To investigate the dPVS burden and provide normative data according to age in a healthy population, including children.
Materials and Methods
In this retrospective study, three-dimensional T2-weighted brain MRI scans from the Human Connectome Project data sets were used for visual grading (grade 0, 1, 2, 3, 4 for 0, 1–10, 11–20, 21–40, and >40 dPVS on a single section of either hemispheric region) and automated volumetry of dPVS in basal ganglia (BGdPVS) and white matter (WMdPVS). Linear and nonlinear regression were performed to assess the association of dPVS volume with age. Optimal cutoff ages were determined with use of the maximized continuous-scale C-index. Participants were grouped by cutoff values. Linear regression was performed to assess the age-dPVS volume relationship in each age group. Normative data of dPVS visual grades were provided per age decade.
Results
A total of 1789 participants (mean age, 35 years; age range, 8–100 years; 1006 female participants) were evaluated. Age was related to dPVS volume in all regression models (R2 range, 0.41–0.55; P < .001). Age-dPVS volume relationships were altered at the mid-30s and age 55 years; BGdPVS and WMdPVS volumes negatively correlated with age until the mid-30s (β, −1.2 and −7.8), then positively until age 55 years (β, 3.3 and 54.1) and beyond (β, 3.9 and 42.8; P < .001). The 90th percentile for dPVS grades was grade 1 for age 49 years and younger, grade 2 for age 50–69 years, and grade 3 for age 70 years and older (overall, grade 2) for BGdPVS, and grade 3 for age 49 years and younger and grade 4 for age 50 years and older (overall, grade 3) for WMdPVS.
Conclusion
Dilated perivascular spaces (dPVS) showed a biphasic volume pattern with brain MRI, lower volumes until the mid-30s, then higher afterward. Grades of 3 or higher and 4 might be considered pathologic dPVS in basal ganglia and white matter, respectively.
논문정보
- Research article
- 2022년 11월 (BRIC 등록일 2023-01-26)
- 국내 연구진
- 의약학 > 응용의학
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