ArticleProceedings of SPIE--the International Society for Optical Engineering2017
An Investigation of Low-Dose 3D Scout Scans for Computed Tomography.
Article in Proceedings of SPIE--the International Society for Optical Engineering, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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
8 citing papers in PubMed.
- Microspheres as a Carrier System for Therapeutic Embolization Procedures: Achievements and Advances.Journal of clinical medicine · 2023Review
- Reconstruction of three-dimensional tomographic patient models for radiation dose modulation in CT from two scout views using deep learning.Medical physics · 2022Article
- Minimum size and positioning of imaging field for CBCT-scans of impacted lower third molars: a retrospective study.BMC oral health · 2021Article
- Dynamic fluence field modulation in computed tomography using multiple aperture devices.Physics in medicine and biology · 2019Article
- Dynamic fluence field modulation for miscentered patients in computed tomography.Journal of medical imaging (Bellingham, Wash.) · 2018Article
- Joint Optimization of Fluence Field Modulation and Regularization for Multi-Task Objectives.Proceedings of SPIE--the International Society for Optical Engineering · 2018Article
- Task-driven optimization of CT tube current modulation and regularization in model-based iterative reconstruction.Physics in medicine and biology · 2017Article
- Evaluation of the dosimetry and centralization of scout-view function in CBCT.Brazilian dental journalArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
purposeCommonly 2D scouts or topograms are used prior to CT scan acquisition. However, low-dose 3D scouts could potentially provide additional information for more effective patient positioning and selection of acquisition protocols. We propose using model-based iterative reconstruction to reconstruct low exposure tomographic data to maintain image quality in both low-dose 3D scouts and reprojected topograms based on those 3D scouts.
methodsWe performed tomographic acquisitions on a CBCT test-bench using a range of exposure settings from 16.6 to 231.9 total mAs. Both an anthropomorphic phantom and a 32 cm CTDI phantom were scanned. The penalized-likelihood reconstructions were made using Matlab and CUDA libraries and reconstruction parameters were tuned to determine the best regularization strength and delta parameter. RMS error between reconstructions and the highest exposure reconstruction were computed, and CTDI
resultsWe find that we are able to produce low-dose (0.417 mGy) 3D scouts that show high-contrast and large anatomical features while maintaining the ability to produce traditional topograms.
conclusionsWe demonstrated that iterative reconstruction can mitigate noise in very low exposure CT acquisitions to enable 3D CT scout. Such additional 3D information may lead to improved protocols for patient positioning and acquisition refinements as well as a number of advanced dose reduction strategies that require localization of anatomical features and quantities that are not provided by simple 2D topograms.
Identifiers
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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.