2021年12月18日
Effects of low-dose oxygen administration on renal blood oxygenation level-dependent MRI in children with glomerulonephritis.
Magma (New York, N.Y.)
- ,
- ,
- ,
- 巻
- 34
- 号
- 6
- 開始ページ
- 823
- 終了ページ
- 831
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10334-021-00945-w
- 出版者・発行元
- Springer Science and Business Media {LLC}
OBJECTIVE: Children are often sedated for renal blood oxygenation level-dependent (BOLD) magnetic resonance imaging (MRI) and may require low-dose oxygen administration. It is unclear whether low-dose oxygen administration affects results of BOLD MRI. We investigated the effect of low-dose oxygen administration on renal BOLD MRI and its variation by the presence or absence of renal disease. MATERIALS AND METHODS: We retrospectively examined children undergoing MRI for renal disease between 2013 and 2020. Patients were divided into glomerulonephritis and non-glomerulonephritis groups; spin relaxation time (T2*) was determined using a 3.0 T MRI system. RESULTS: The study included 10 children (5 patients in each group); patient characteristics between the groups did not differ significantly. In the entire cohort, oxygen administration reduced mean spin relaxation rate (R2*) value in the medulla (p < 0.04). The mean R2* value decreased with oxygen administration in the non-glomerulonephritis group, whereas this was not observed in the glomerulonephritis group. The responses to oxygen administration of the two groups differed significantly in the cortex (p < 0.05) and medulla (p < 0.02). DISCUSSION: Low-dose oxygen administration affects the results of BOLD MRI. We suggest that understanding the fluctuations due to oxygen administration is useful in monitoring the disease activity of glomerulonephritis.
- リンク情報
- ID情報
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- DOI : 10.1007/s10334-021-00945-w
- ORCIDのPut Code : 97128816
- PubMed ID : 34275036