Changes in the geometry and robustness of diffusion tensor imaging networks
Secondary analysis from a randomized controlled trial of young autistic children receiving an umbilical cord blood infusion
Bibliographic Data
| ID | 15520059 |
|---|---|
| Authors | Anish K Simhal (0000-0001-7848-3565, Memorial Sloan Kettering Cancer Center), Kimberly L H Carpenter (0000-0002-3838-798X, Duke University, corresponding author), Joanne Kurtzberg (0000-0002-3370-0703, Duke Medical Center), Allen W Song (0000-0003-0308-7941, Duke University), Allen Song, Allen Tannenbaum (0000-0002-0567-5256, Stony Brook University), Lijia Zhang (0000-0001-7379-7688, Duke University), Guillermo Sapiro (0000-0001-9190-6964, Duke University), Géraldine Dawson (0000-0003-1410-2764, Duke University) |
| Year | 2022 |
| Volume | 13 |
| Pages | 1026279-1026279 |
| Publication date | 2022-10-20 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Frontiers in Psychiatry (JOURNAL) |
| Journal identifiers | ISSN: 1664-0640 • E-ISSN: 1664-0640 |
| Publisher | Frontiers Media (PUBLISHER • CH) |
| DOI | 10.3389/fpsyt.2022.1026279 |
| PMID | 36353577 |
| OpenAlex | W4307128040 |
| Language | EN |
| References cited | 71 |
Diffusion tensor imaging (DTI) has been used as an outcome measure in clinical trials for several psychiatric disorders but has rarely been explored in autism clinical trials. This is despite a large body of research suggesting altered white matter structure in autistic individuals. The current study is a secondary analysis of changes in white matter connectivity from a double-blind placebo-control trial of a single intravenous cord blood infusion in 2-7-year-old autistic children (1). Both clinical assessments and DTI were collected at baseline and 6 months after infusion. This study used two measures of white matter connectivity: change in node-to-node connectivity as measured through DTI streamlines and a novel measure of feedback network connectivity, Ollivier-Ricci curvature (ORC). ORC is a network measure which considers both local and global connectivity to assess the robustness of any given pathway. Using both the streamline and ORC analyses, we found reorganization of white matter pathways in predominantly frontal and temporal brain networks in autistic children who received umbilical cord blood treatment versus those who received a placebo. By looking at changes in network robustness, this study examined not only the direct, physical changes in connectivity, but changes with respect to the whole brain network. Together, these results suggest the use of DTI and ORC should be further explored as a potential biomarker in future autism clinical trials. These results, however, should not be interpreted as evidence for the efficacy of cord blood for improving clinical outcomes in autism. This paper presents a secondary analysis using data from a clinical trial that was prospectively registered with ClinicalTrials.gov(NCT02847182)
Autism · Diffusion MRI · Magnetic resonance imaging · Physical medicine and rehabilitation · Psychiatry · Radiology · Randomized controlled trial · Robustness (evolution · Umbilical cord · Advanced Neuroimaging Techniques and Applications · Fetal and Pediatric Neurological Disorders · Functional Brain Connectivity Studies · Medicine · Anatomy · Surgery
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| Highly cited | No |
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