Evidence map›Paper›PMID 21083798›Full record

ArticleHPB : the official journal of the International Hepato Pancreato Biliary Association2010

Intra-operative ultrasound elasticity imaging for monitoring of hepatic tumour thermal ablation.

Mark G Van Vledder, Emad M Boctor, Lia R Assumpcao, Hassan Rivaz, Pezhman Foroughi, Gregory D Hager, Ulrike M Hamper, Timothy M Pawlik, Michael A Choti

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in HPB : the official journal of the International Hepato Pancreato Biliary Association, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Image-Based Monitoring of Thermal Ablation.Bioengineering (Basel, Switzerland) · 2025
    Review
  3. Thermal Ablation Therapy Control with Tissue Necrosis-driven Temperature Feedback Enabled by Neural State Space Model with Extended Kalman Filter.Proceedings of the ... IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE/RSJ International Conference on Intelligent Robots and Systems · 2024
    Article
  4. Article
  5. Planned Treatment of Advanced Metastatic Disease with Completion Ablation After Hepatic Resection.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2017
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Recurrence after microwave ablation of liver malignancies: a single institution experience.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2013
    Article
  13. Article
  14. 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

9 authors at 1 institution in 1 country.

Mark G Van VledderDepartment of Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA.
Emad M Boctor
Lia R Assumpcao
Hassan Rivaz
Pezhman Foroughi
Gregory D Hager
Ulrike M Hamper
Timothy M Pawlik
Michael A Choti
Johns Hopkins University · US

Funding

Precisely Shaped Acoustic Ablation of Tumors Under 3D Ultrasound Image GuidanceR44CA134169 · NCI · ACOUSTIC MEDSYSTEMS, INC. · PI BURDETTE, EVERETTE C · 2008 to 2011
$3.3M
NCI NIH HHS 1R44CA134169-01A1NCI NIH HHS R44 CA134169
6 · The paper itself

Abstract

backgroundThermal ablation is an accepted therapy for selected hepatic malignancies. However, the reliability of thermal ablation is limited by the inability to accurately monitor and confirm completeness of tumour destruction in real time. We investigated the ability of ultrasound elasticity imaging (USEI) to monitor thermal ablation.

objectivesCapitalizing on the known increased stiffness that occurs with protein denaturation and dehydration during thermal therapy, we sought to investigate the feasibility and accuracy of USEI for monitoring of liver tumour ablation.

methodsA model for hepatic tumours was developed and elasticity images of liver ablation were acquired in in vivo animal studies, comparing the elasticity images to gross specimens. A clinical pilot study was conducted using USEI in nine patients undergoing open radiofrequency ablation for hepatic malignancies. The size and shape of thermal lesions on USEI were compared to B-mode ultrasound and post-ablation computed tomography (CT).

resultsIn both in vivo animal studies and in the clinical trial, the boundary of thermal lesions was significantly more conspicuous on USEI when compared with B-mode imaging. Animal studies demonstrated good correlation between the diameter of ablated lesions on USEI and the gross specimen (r = 0.81). Moreover, high-quality strain images were generated in real time during therapy. In patients undergoing tumour ablation, a good size correlation was observed between USEI and post-operative CT (r = 0.80).

conclusionUSEI can be a valuable tool for the accurate monitoring and real-time verification of successful thermal ablation of liver tumours.

Indexed as

Catheter AblationElasticity Imaging TechniquesAnimalsElasticityFeasibility StudiesFemaleHumansIntraoperative CareLiver NeoplasmsPilot ProjectsSwineTime FactorsTomography, X-Ray ComputedTreatment Outcome

Identifiers

PMID21083798
PMCPMC3003483
OpenAlexW2000696933

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.