Evidence map›Paper›PMID 42877499›Full record

ArticleJournal of contemporary brachytherapy2026

Impact of needle number on dosimetric parameters in high-dose-rate prostate brachytherapy: A single-institution retrospective study.

Yana Yankova, Kamen Nedev, Nikolay Nedev, Desislav Stoyanov, Boris Enikov, Tsvetomir Angelov, Milen Markov

Abstract read
In one paragraph

Article in Journal of contemporary brachytherapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Yana YankovaDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Kamen NedevDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Nikolay NedevDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Desislav StoyanovDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Boris EnikovDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Tsvetomir AngelovDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.
Milen MarkovDepartment of Radiation Oncology, Acibadem City Clinic Mladost, Sofia, Bulgaria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To evaluate how the number of implanted needles per fraction influences target coverage, dose heterogeneity, and organ at risk (OAR) exposure in high-dose-rate (HDR) prostate brachytherapy. Material and methods: Retrospective planning system data from 2016 to 2025 were analyzed the level of individual treatment fractions (1,850 fractions from 1,008 patients). Fractions were stratified by needle number into three groups: ≤ 14 needles ( Results: Prostate volume differed significantly across needle groups (H = 619.66, Conclusions: A higher needle number was associated with reduced prostate hot spots and lower urethral peak dose while preserving target coverage. These findings support volume-adapted implant catheter density as a practical strategy to improve dose homogeneity in routine HDR prostate brachytherapy. Prostate volume is a major confounder, and should be considered in outcome-linked analyses and institutional benchmarking.

Indexed as

catheter numberdose homogeneitydosimetryDVHHDR brachytherapyimplant geometryneedle numberprostate cancerrectumurethra

Identifiers

PMID42877499
PMCPMC13662465

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.