Evidence map›Paper›PMID 29317376›Full record

ArticleDiagnostic and interventional radiology (Ankara, Turkey)

A comparison between 915 MHz and 2450 MHz microwave ablation systems for the treatment of small diameter lung metastases.

Thomas J Vogl, Andrei Roman, Nour-Eldin A Nour-Eldin, Wolfgang Hohenforst-Schmidt, Iliana Bednarova, Benjamin Kaltenbach

Open access · greenAbstract readComparative Study
In one paragraph

Article in Diagnostic and interventional radiology (Ankara, Turkey). 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
1.8field-weighted citation impact, top 14% 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, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Heating technology for malignant tumors: a review.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2020
    Review
  8. 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

6 authors at 3 institutions in 4 countries.

Thomas J VoglDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Andrei RomanDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Department of Radiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
Nour-Eldin A Nour-EldinDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Department of Diagnostic and Interventional Radiology, Cairo University Hospital, Cairo, Egypt.
Wolfgang Hohenforst-SchmidtMedical Clinic I, "Fuerth'' Hospital, University of Erlangen, Fuerth, Germany.
Iliana BednarovaDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Institute of Diagnostic Radiology, Department of Biological and Medical Sciences, University of Udine, Udine, Italy.
Benjamin KaltenbachDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
University of Udine · ITIuliu Hațieganu University of Medicine and Pharmacy · ROUniversity Hospital Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe aimed to retrospectively compare the local tumor control rates between low frequency (LF) and high frequency (HF) microwave ablation devices in the treatment of <3 cm lung metastases.

methodsA total of 36 patients (55 tumors) were treated with the LF system (915 MHz) and 30 patients (39 tumors) were treated with the HF system (2450 MHz) between January 2011 and March 2016. Computed tomography (CT) scans performed prior to and 24 hours after the ablation were used to measure the size of the ablation zone and to calculate the ablation margin. The subsequent CTs were used to detect local tumor progression. Possible predictive factors for local progression were analyzed. All patients had a minimum follow-up of 3 months with a median of 13.8 months for the LF group and 11.7 months for the HF group.

resultsThe ablation margin (P = 0.015), blood vessel proximity (P = 0.006), and colorectal origin (P = 0.029) were significantly associated with the local progression rate. The local progression rates were 36.3% for LF ablations and 12.8% for HF ablations. The 6, 12, and 18 months local progression-free survival rates were 79%, 65.2% and 53% for the LF group and 97.1%, 93.7%, and 58.4% for the HF group, with a significant difference between the survival curves (P = 0.048).

conclusionHF ablations resulted in larger ablation margins with fewer local progression compared with LF ablations.

Indexed as

Ablation TechniquesAdultAgedDisease-Free SurvivalFemaleFollow-Up StudiesHumansLungLung NeoplasmsMaleMicrowavesMiddle AgedRetrospective StudiesRisk FactorsTomography, X-Ray ComputedTreatment Outcome

Identifiers

PMID29317376
PMCPMC5765926
OpenAlexW2783581737

What OpenQuestion holds

Textmetadata
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.