Evidence map›Paper›PMID 23014797›Full record

Trial reportEuropean radiology2013

MRI-based biodistribution assessment of holmium-166 poly(L-lactic acid) microspheres after radioembolisation.

Gerrit H van de Maat, Peter R Seevinck, Mattijs Elschot, Maarten L J Smits, Hendrik de Leeuw, Alfred D van Het Schip, Maarten A D Vente, Bernard A Zonnenberg, Hugo W A M de Jong, Marnix G E H Lam and 4 more

Abstract readClinical Trial
In one paragraph

Trial report in European radiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Holmium-166 radioembolisation dosimetry in HCC.European journal of nuclear medicine and molecular imaging · 2025
    Trial
  3. Safety and Efficacy ofJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2022
    Trial
  4. Additional hepaticBMC gastroenterology · 2018
    Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Transarterial Radioembolization: Overview of Radioembolic Devices.Seminars in interventional radiology · 2023
    Review
  12. Review
  13. Holmium-166 Radioembolization: Current Status and Future Prospective.Cardiovascular and interventional radiology · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. The superior predictive value ofEuropean journal of nuclear medicine and molecular imaging · 2020
    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

14 authors.

Gerrit H van de MaatImage Sciences Institute, University Medical Center Utrecht, Q S.459, PO Box 85500, 3508 GA Utrecht, The Netherlands. g.h.vandemaat@umcutrecht.nl
Peter R Seevinck
Mattijs Elschot
Maarten L J Smits
Hendrik de Leeuw
Alfred D van Het Schip
Maarten A D Vente
Bernard A Zonnenberg
Hugo W A M de Jong
Marnix G E H Lam
Max A Viergever
Maurice A A J van den Bosch
Johannes F W Nijsen
Chris J G Bakker

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo demonstrate the feasibility of MRI-based assessment of the intrahepatic Ho-PLLA-MS biodistribution after radioembolisation in order to estimate the absorbed radiation dose.

methodsFifteen patients were treated with holmium-166 ((166)Ho) poly(L-lactic acid)-loaded microspheres (Ho-PLLA-MS, mean 484 mg; range 408-593 mg) in a phase I study. Multi-echo gradient-echo MR images were acquired from which R (2) maps were constructed. The amount of Ho-PLLA-MS in the liver was determined by using the relaxivity r (2) of the Ho-PLLA-MS and compared with the administered amount. Quantitative single photon emission computed tomography (SPECT) was used for comparison with MRI regarding the whole liver absorbed radiation dose.

resultsR (2) maps visualised the deposition of Ho-PLLA-MS with great detail. The mean total amount of Ho-PLLA-MS detected in the liver based on MRI was 431 mg (range 236-666 mg) or 89 ± 19 % of the delivered amount (correlation coefficient r = 0.7; P < 0.01). A good correlation was found between the whole liver mean absorbed radiation dose as assessed by MRI and SPECT (correlation coefficient r = 0.927; P < 0.001).

conclusionMRI-based dosimetry for holmium-166 radioembolisation is feasible. Biodistribution is visualised with great detail and quantitative measurements are possible.

Indexed as

AdultAgedAged, 80 and overFemaleHolmiumHumansLiverLiver NeoplasmsMagnetic Resonance ImagingMaleMicrospheresMiddle AgedMolecular ImagingOrgan SpecificityRadiopharmaceuticalsTissue DistributionHolmiumRadiopharmaceuticals

Identifiers

PMID23014797
PMCPMC3563959

What OpenQuestion holds

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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.