Evidence map›Paper›PMID 40944684›Full record

ArticleJACC. Asia2025

A Novel Radiation Shield for Interventional Echocardiographers With Application During Structural Heart Disease Procedures.

Akihisa Kataoka, Takeshi Takata, Ayaka Yanagawa, Kento Kito, Taiga Katayama, Hideyuki Kawashima, Takeyuki Sajima, Yuko Toda, Kunihiro Sakoda, Yusuke Watanabe and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in JACC. Asia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

13 authors.

Akihisa KataokaDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan. Electronic address: kataoaki@sd5.so-net.ne.jp.
Takeshi TakataAdvanced Comprehensive Research Organization, Teikyo University, Tokyo, Japan.
Ayaka YanagawaGraduate School of Medical Care and Technology, Teikyo University, Tokyo, Japan.
Kento KitoDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan.
Taiga KatayamaDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan.
Hideyuki KawashimaDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan.
Takeyuki SajimaDepartment of Anesthesia, Teikyo University, Tokyo, Japan.
Yuko TodaAdvanced Comprehensive Research Organization, Teikyo University, Tokyo, Japan.
Kunihiro SakodaDepartment of Cardiology, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan; MS Group Co, Ltd, Kiyosu, Aichi, Japan.
Yusuke WatanabeDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan.
Ken KozumaDivision of Cardiology, Department of Internal Medicine, Teikyo University, Tokyo, Japan.
Hodaka NakanishiAdvanced Comprehensive Research Organization, Teikyo University, Tokyo, Japan.
Jun'ichi KotokuGraduate School of Medical Care and Technology, Teikyo University, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring structural heart disease procedures, interventional echocardiographers are exposed to high doses of radiation, particularly in their right waist and lower body regions. Currently, no radiation shields that are practical for use during transesophageal echocardiography are available.

objectivesThe authors aimed to develop a novel radiation shield that enables interventional echocardiographers to perform transesophageal echocardiography with minimal radiation exposure during structural heart disease procedures.

methodsA shape prototype model, including a freestanding radioprotective board with lateral windows, was used to assess clinical usability and Monte Carlo simulations were employed. Real-life radiation exposures, both with and without completed shields, were measured during 193 consecutive structural heart disease procedures (114 transcatheter edge-to-edge repairs of the mitral valve and 79 transcatheter aortic valve replacements).

resultsThe shape prototype experiment determined the optimal window size to be 300 mm wide and 200 mm high. The actual use of the shield was trouble-free in all procedures. Real-life exposure measurements showed a significant reduction in both types of procedures when the shield was used, especially around the waist (median: 0-8.0 μSv; P < 0.001 for transcatheter edge-to-edge repair and median: 0-14.0 μSv; P < 0.001 for transcatheter aortic valve replacement).

conclusionsThrough assessment of clinical usability using a shape prototype model and Monte Carlo simulations, a novel radiation shield with practical use was developed for interventional echocardiographers. Clinical studies and simulations demonstrated that this shield is practical for transesophageal echocardiography monitoring and guidance while providing sufficient radiation protection during structural heart disease procedures. (Japanese Development of radiation protection plates for catheter surgery for structural heart disease [echocardiologist and anesthesiologist]; UMIN000046478).

Indexed as

interventional echocardiographerradiation exposurestructural heart diseasetransesophageal echocardiographyworkability

Identifiers

PMID40944684
PMCPMC12673834

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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.