Evidence map›Paper›PMID 38273190›Full record

ArticleEuropean radiology experimental2024

Probing the glioma microvasculature: a case series of the comparison between perfusion MRI and intraoperative high-frame-rate ultrafast Doppler ultrasound.

Ahmad Alafandi, Sadaf Soloukey Tbalvandany, Fatemeh Arzanforoosh, Sebastian R van Der Voort, Fatih Incekara, Luuk Verhoef, Esther A H Warnert, Pieter Kruizinga, Marion Smits

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In one paragraph

Article in European radiology experimental, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

8 citing papers in PubMed, 9 citations in OpenAlex.

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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 1 country.

Ahmad AlafandiDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands.
Sadaf Soloukey TbalvandanyDepartment of Neurosurgery, Erasmus MC, Rotterdam, The Netherlands.
Fatemeh ArzanforooshDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands.
Sebastian R van Der VoortDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands.
Fatih IncekaraDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands.
Luuk VerhoefDepartment of Neuroscience, Erasmus MC, Rotterdam, The Netherlands.
Esther A H WarnertDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands.
Pieter KruizingaDepartment of Neuroscience, Erasmus MC, Rotterdam, The Netherlands.
Marion SmitsDepartment of Radiology & Nuclear Medicine, Erasmus MC, Dr.Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands. marion.smits@erasmusmc.nl.ORCID http://orcid.org/0000-0001-5563-2871
Erasmus MC · NLDeltares · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to describe the microvascular features of three types of adult-type diffuse glioma by comparing dynamic susceptibility contrast (DSC) perfusion magnetic resonance imaging (MRI) with intraoperative high-frame-rate ultrafast Doppler ultrasound.

methodsCase series of seven patients with primary brain tumours underwent both DSC perfusion MRI and intra-operative high-frame-rate ultrafast Doppler ultrasound. From the ultrasound images, three-dimensional vessel segmentation was obtained of the tumour vascular bed. Relative cerebral blood volume (rCBV) maps were generated with leakage correction and normalised to the contralateral normal-appearing white matter. From tumour histograms, median, mean, and maximum rCBV ratios were extracted.

resultsLow-grade gliomas (LGGs) showed lower perfusion than high-grade gliomas (HGGs), as expected. Within the LGG subgroup, oligodendroglioma showed higher perfusion than astrocytoma. In HGG, the median rCBV ratio for glioblastoma was 3.1 while astrocytoma grade 4 showed low perfusion with a median rCBV of 1.2. On the high-frame-rate ultrafast Doppler ultrasound images, all tumours showed a range of rich and organised vascular networks with visually apparent abnormal vessels, even in LGG.

conclusionsThis unique case series revealed in vivo insights about the microvascular architecture in both LGGs and HGGs. Ultrafast Doppler ultrasound revealed rich vascularisation, also in tumours with low perfusion at DSC MRI. These findings warrant further investigations using advanced MRI postprocessing, in particular for characterising adult-type diffuse glioma. RELEVANCE STATEMENT: Our findings challenge the current assumption behind the estimation of relative cerebral blood volume that the distribution of blood vessels in a voxel is random. KEY POINTS: • Ultrafast Doppler ultrasound revealed rich vascularity irrespective of perfusion dynamic susceptibility contrast MRI state. • Rich and organised vascularisation was also observed even in low-grade glioma. • These findings challenge the assumptions for cerebral blood volume estimation with MRI.

Indexed as

AstrocytomaBrain NeoplasmsGliomaAdultHumansMagnetic Resonance AngiographyMagnetic Resonance ImagingMicrovesselsPerfusionUltrasonography, DopplerCerebral blood volumeGliomaMagnetic resonance imagingPerfusionUltrasonography (Doppler)

Identifiers

PMID38273190
PMCPMC10810769
OpenAlexW4391239134

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Registered trials

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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.