Evidence map›Paper›PMID 37545846›Full record

ArticleEuropean urology open science2023

Reliable Visualization of the Treatment Effect of Transperineal Focal Laser Ablation in Prostate Cancer Patients by Magnetic Resonance Imaging and Contrast-enhanced Ultrasound Imaging.

Luigi A M J G van Riel, Rob A A van Kollenburg, Jan Erik Freund, Mitra Almasian, Auke Jager, Marc R W Engelbrecht, Ruth S Smit, Elise Bekers, Jakko A Nieuwenhuijzen, Pim J van Leeuwen and 5 more

Abstract read
In one paragraph

Article in European urology open science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Surveillance after Focal Therapy - a Comprehensive Review.Prostate cancer and prostatic diseases · 2025
    Review
  2. Article
  3. Review
  4. 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

15 authors.

Luigi A M J G van RielDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Rob A A van KollenburgDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Jan Erik FreundDepartment of Pathology, UMC Utrecht, Utrecht, The Netherlands.
Mitra AlmasianDepartment of Biomedical Engineering and Physics, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Auke JagerDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Marc R W EngelbrechtDepartment of Radiology and Nuclear Medicine, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Ruth S SmitDepartment of Radiology and Nuclear Medicine, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Elise BekersDepartment of Pathology, Netherlands Cancer Institute, Prostate Cancer Network in The Netherlands, Amsterdam, The Netherlands.
Jakko A NieuwenhuijzenDepartment of Urology, Cancer Center Amsterdam, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Pim J van LeeuwenDepartment of Urology, Netherlands Cancer Institute, Prostate Cancer Network in The Netherlands, Amsterdam, The Netherlands.
Henk van der PoelDepartment of Urology, Cancer Center Amsterdam, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Theo M de ReijkeDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Harrie P BeerlageDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Jorg R OddensDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.
Daniel M de BruinDepartment of Urology, Amsterdam UMC Location University of Amsterdam, Prostate Cancer Network in the Netherlands, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Transperineal focal laser ablation (TPLA) treatment for prostate cancer (PCa) is an experimental focal ablative therapy modality with low morbidity. However, a dosimetry model for TPLA is lacking. Objective: To determine (1) the three-dimensional (3D) histologically defined ablation zone of single- and multifiber TPLA treatment for PCa correlated with magnetic resonance imaging (MRI) and contrast-enhanced ultrasound (CEUS) and (2) a reliable imaging modality of ablation zone volumetry. Design setting and participants: This was a prospective, multicenter, and interventional phase I/II pilot study with an ablate-and-resect design. TPLA was performed in 12 patients with localized prostate cancer divided over four treatment regimens to evaluate potential variation in outcomes. Intervention: TPLA was performed approximately 4 wk prior to robot-assisted radical prostatectomy (RARP) in a daycare setting using local anesthesia. Outcome measurements and statistical analysis: Four weeks after TPLA, ablation zone volumetry was determined on prostate MRI and CEUS by delineation and segmentation into 3D models and correlated with whole-mount RARP histology using the Pearson correlation index. Results and limitations: Twelve office-based TPLA procedures were performed successfully under continuous transrectal ultrasound guidance using local perineal anesthesia. No serious adverse events occurred. A qualitative analysis showed a clear demarcation of the ablation zone on T2-weighted MRI, dynamic contrast-enhanced MRI, and CEUS. On pathological evaluation, no remnant cancer was observed within the ablation zone. Ablation zone volumetry on CEUS and T2-weighted MRI compared with histology had a Pearson correlation index of Conclusions: CEUS and prostate MRI could reliably visualize TPLA ablative effects after minimally invasive PCa treatment with a high concordance with histopathological findings and showed no remnant cancer. Patient summary: The treatment effects of a novel minimally invasive ablation therapy device can reliably be visualized with radiological examinations. These results will improve planning and performance of future procedures.

Indexed as

Focal laser therapyMagnetic resonance imagingProstatic neoplasmsUltrasonography

Identifiers

PMID37545846
PMCPMC10403687

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.