Effects of low-dose oxygen administration on renal blood oxygenation level-dependent MRI in children with glomerulonephritis
| Autor: | Sayaka Ono, Masakazu Mimaki, Kazuhiro Takahashi, Tomohiko Nishino |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Blood oxygenation level dependent Biophysics chemistry.chemical_element Kidney Oxygen Glomerulonephritis Internal medicine Medicine Humans Radiology Nuclear Medicine and imaging Child Medulla Retrospective Studies Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Low dose Magnetic resonance imaging medicine.disease Magnetic Resonance Imaging chemistry Cohort Blood oxygenation Cardiology business |
| Zdroj: | Magma (New York, N.Y.). 34(6) |
| ISSN: | 1352-8661 |
| Popis: | 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. 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. 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 |
| Databáze: | OpenAIRE |
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