Evidence map›Paper›PMID 40025336›Full record

ArticleUrolithiasis2025

Characterizing stone ablation with the thulium fiber laser: a single-pulse comparison of different pulse durations.

Ron Marom, Leilane Glienke, John W Robinson, Timothy L Hall, William W Roberts, Khurshid R Ghani

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Urolithiasis, 2025. 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. Review
  2. Article
  3. Article
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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

6 authors.

Ron MaromDepartment of Urology, University of Michigan, 4432 Medical Science I, 1301 Catherine Street, Ann Arbor, MI, 48109-5330, USA. ronmarom@gmail.com.
Leilane GlienkeDepartment of Urology, University of Michigan, 4432 Medical Science I, 1301 Catherine Street, Ann Arbor, MI, 48109-5330, USA.
John W RobinsonDepartment of Chemistry, University of Michigan, Ann Arbor, MI, USA.
Timothy L HallDepartment of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.
William W RobertsDepartment of Urology, University of Michigan, 4432 Medical Science I, 1301 Catherine Street, Ann Arbor, MI, 48109-5330, USA.
Khurshid R GhaniDepartment of Urology, University of Michigan, 4432 Medical Science I, 1301 Catherine Street, Ann Arbor, MI, 48109-5330, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stone ablation using the thulium fiber laser (TFL) at different pulse duration/peak power or laser fiber-to-stone distances requires further research to understand effective and safe settings. In this study we characterized the vapor bubble anatomy and stone crater morphology at various settings and standoff distances. Optical profiles of 1 J short pulse (SP), 1 J long pulse (LP), 3 J SP, and 2.4 J LP of a TFL system (Fiberdust, Quanta) were assessed. We used high-speed imaging and segmentation to quantify the vapor bubble. Using Begostones, stone craters from a single pulse at each setting were compared at 0, 0.5, 1, 2 and 3 mm standoff distances. The temporal optical profile of TFL is rectangular in shape with a peak power of ~ 180W (LP) and ~ 470W (SP). Increasing the pulse energy did not increase the peak power. LP generated a channel-like bubble while SP formed multiple generations of a spherical bubble. Ablation volume with SP was greater than LP for all distances (p < 0.001) with up to 350% increased crater volume at contact. Ablation reduced as distance increased with both modes. There was no ablation at > 1 mm distance with LP. For SP, increasing the pulse energy had minimal impact on crater depth. The SP creates a bubble geometry that tends to collapse more quickly in comparison to LP. Peak power of TFL is a function of pulse duration, not pulse energy. LP results in weak ablation. When using SP, increasing the pulse energy increased ablation volume by increasing crater area rather than depth.

Indexed as

Kidney CalculiLasers, Solid-StateLithotripsy, LaserHumansThuliumThuliumLaser lithotripsyLasers, solid-statePulsed lasersThuliumUrinary lithiasis

Identifiers

PMID40025336

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.