SynthesisRadiological physics and technology2019
Use of bismuth shield for protection of superficial radiosensitive organs in patients undergoing computed tomography: a literature review and meta-analysis.
Synthesis in Radiological physics and technology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.
- Dose enhancement by gold, iron oxide, bismuth oxide, and platinum nanoparticles in radiotherapy: a comprehensive meta-analysis.Radiological physics and technology · 2026Pooled it
- Non-lead flexible composite shields efficiency in decreasing dose in chest CT scan imaging.Radiological physics and technology · 2025Article
- Bismuth Shielding in Head Computed Tomography-Still Necessary?Journal of clinical medicine · 2023Article
- Image Quality and Radiation Dose of Conventional and Wide-Field High-Resolution Cone-Beam Computed Tomography for Cerebral Angiography: A Phantom Study.Tomography (Ann Arbor, Mich.) · 2023Article
- Shielding performance of multi-metal nanoparticle composites for diagnostic radiology: an MCNPX and Geant4 study.Radiological physics and technology · 2023Article
- Organ-based tube current modulation and bismuth eye shielding in pediatric head computed tomography.Pediatric radiology · 2022Article
- Lens dose reduction with a bismuth shield in neuro cone-beam computed tomography: an investigation on optimum shield device placement conditions.Radiological physics and technology · 2022Article
- Application of full-field organ dose modulation on cervical- thoraco-abdominopelvic contrast-enhanced computed tomography.Japanese journal of radiology · 2021Article
- Bismuth Pelvic X-Ray Shielding Reduces Radiation Dose Exposure in Pediatric Radiography.BioMed research international · 2021Article
- Shielding characteristics of nanocomposites for protection against X- and gamma rays in medical applications: effect of particle size, photon energy and nano-particle concentration.Radiation and environmental biophysics · 2020Review
- Shielding effect of radiation dose reduction fiber during the use of C-arm fluoroscopy: a phantom study.Journal of radiation research · 2020Article
- Influence of the size of nano- and microparticles and photon energy on mass attenuation coefficients of bismuth-silicon shields in diagnostic radiology.Radiological physics and technology · 2019Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The study aimed to assess the effect of bismuth (Bi) shielding on dose reduction and image quality in computed tomography (CT) through a literature review. A search was conducted in the following databases: Web of Science, PubMed, Google Scholar, and Scopus. Studies that reported estimated dose reduction with bismuth shielding during imaging of the eye, thyroid, and breast were included, and a meta-regression analysis was used to examine the influence of the CT scanner type on the dose reduction. The studies included a total of 237 patients and 34 pediatric and adult anthropomorphic phantoms for whom the radiation dose was reported. Bismuth shielding was recommended in 88.89% of the studies based on the maintenance of appropriate image quality under shielding. Noise associated with Bi shielding was 7.5%, 263%, and 23.5% for the eye, thyroid, and breast, respectively. The fixed-effects pooled estimate of dose reduction was 34% (95% CI: 13-55; p < 0.001) for the eye, 37% (95% CI 14-61; p < 0.001) for the thyroid, and 36% (95% CI 36-55; p < 0.001) for the breast. The image quality, usage of foams, CT scanner type, beam energies, and backscatter radiation were important factors that directly affected the efficacy of Bi shielding to reduce the radiation dose at the superficial radiosensitive organs.
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Registered trials
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.