Evidence map›Paper›PMID 38646998›Full record

ArticleHuman brain mapping2024

Comparative validation of automated presurgical tractography based on constrained spherical deconvolution and diffusion tensor imaging with direct electrical stimulation.

Ahmed Mohamed Radwan, Louise Emsell, Kristof Vansteelandt, Evy Cleeren, Ronald Peeters, Steven De Vleeschouwer, Tom Theys, Patrick Dupont, Stefan Sunaert

Open access · goldAbstract readComparative StudyValidation Study
In one paragraph

Article in Human brain mapping, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.0field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. A Virtual In Vivo Dissection and Analysis of Socioaffective Symptoms Related to Cerebellum-Midbrain Reward Circuitry in Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Ahmed Mohamed RadwanKU Leuven, Department of Imaging and Pathology, Translational MRI, Leuven, Belgium.ORCID 0000-0002-4819-548X
Louise EmsellKU Leuven, Department of Imaging and Pathology, Translational MRI, Leuven, Belgium.ORCID 0000-0003-0011-4158
Kristof VansteelandtKU Leuven, Leuven Brain Institute (LBI), Department of Neurosciences, Leuven, Belgium.ORCID 0000-0002-2562-0447
Evy CleerenUZ Leuven, Department of Neurology, Leuven, Belgium.ORCID 0000-0003-0592-1354
Ronald PeetersUZ Leuven, Department of Radiology, Leuven, Belgium.
Steven De VleeschouwerKU Leuven, Leuven Brain Institute (LBI), Department of Neurosciences, Leuven, Belgium.ORCID 0000-0002-9576-9917
Tom TheysKU Leuven, Leuven Brain Institute (LBI), Department of Neurosciences, Leuven, Belgium.ORCID 0000-0001-7595-3234
Patrick DupontKU Leuven, Leuven Brain Institute (LBI), Department of Neurosciences, Leuven, Belgium.ORCID 0000-0003-1980-2540
Stefan SunaertKU Leuven, Department of Imaging and Pathology, Translational MRI, Leuven, Belgium.
Allen Institute for Brain Science · USUniversitair Ziekenhuis Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAccurate presurgical brain mapping enables preoperative risk assessment and intraoperative guidance. This cross-sectional study investigated whether constrained spherical deconvolution (CSD) methods were more accurate than diffusion tensor imaging (DTI)-based methods for presurgical white matter mapping using intraoperative direct electrical stimulation (DES) as the ground truth.

methodsFive different tractography methods were compared (three DTI-based and two CSD-based) in 22 preoperative neurosurgical patients undergoing surgery with DES mapping. The corticospinal tract (CST, N = 20) and arcuate fasciculus (AF, N = 7) bundles were reconstructed, then minimum distances between tractograms and DES coordinates were compared between tractography methods. Receiver-operating characteristic (ROC) curves were used for both bundles. For the CST, binary agreement, linear modeling, and posthoc testing were used to compare tractography methods while correcting for relative lesion and bundle volumes.

resultsDistance measures between 154 positive (functional response, pDES) and negative (no response, nDES) coordinates, and 134 tractograms resulted in 860 data points. Higher agreement was found between pDES coordinates and CSD-based compared to DTI-based tractograms. ROC curves showed overall higher sensitivity at shorter distance cutoffs for CSD (8.5 mm) compared to DTI (14.5 mm). CSD-based CST tractograms showed significantly higher agreement with pDES, which was confirmed by linear modeling and posthoc tests (P

conclusionsCSD-based CST tractograms were more accurate than DTI-based ones when validated using DES-based assessment of motor and sensory function. This demonstrates the potential benefits of structural mapping using CSD in clinical practice.

Indexed as

Brain MappingDiffusion Tensor ImagingElectric StimulationAdultAgedCross-Sectional StudiesFemaleHumansMaleMiddle AgedPreoperative CarePyramidal TractsWhite MatterYoung Adultconstrained spherical deconvolutiondiffusion tensor imagingdirect electrical stimulationneurosurgerypresurgical planningwhite matter

Identifiers

PMID38646998
PMCPMC11033921
OpenAlexW4395008541

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.