SynthesisThe British journal of radiology2017
Can CT scan protocols used for radiotherapy treatment planning be adjusted to optimize image quality and patient dose? A systematic review.
Synthesis in The British journal of radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed.
- HyperSight CBCT image quality and metal artifact reduction for adaptive head and neck radiotherapy: Results from a prospective clinical trial.Journal of applied clinical medical physics · 2025Trial
- Evaluating Image Quality of Cone Beam Computed Tomography Using HyperSight® on the Varian TrueBeam.Annals of biomedical engineering · 2026Article
- Novel extended field-of-view reconstruction algorithms in computed tomography simulation for imaging and volumetric modulated arc therapy dosimetry.Quantitative imaging in medicine and surgery · 2026Article
- Auto-segmentation and dose accuracy evaluation of synthetic computed tomography generated from pelvis cone-beam computed tomography images using a cycle-generative adversarial network with a novel loss function.Physics and imaging in radiation oncology · 2026Article
- Computed tomography for four-dimensional dose calculation: Effect of detector array length.Journal of applied clinical medical physics · 2026Article
- Automated quality assurance of imaging dose and protocol adherence in computed tomography radiotherapy planning using TotalSegmentator-based segmentation.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026Article
- Restoration of missing regions in limited field of view computer tomography using an image- and sinogram-based conditional generative adversarial network model.BJR artificial intelligence · 2026Article
- Impact of differences in computed tomography value-electron density/physical density conversion tables on calculate dose in low-density areas.Physical and engineering sciences in medicine · 2025Article
- Impact of acquisition and reconstruction parameters on quantitative accuracy in dual-layer spectral CT: A phantom study.Journal of applied clinical medical physics · 2025Article
- Correlation between exposure (mAs) and image quality for a rapid cone-beam CT on a ring gantry linear accelerator.Journal of applied clinical medical physics · 2025Article
- Auto-Segmentation via deep-learning approaches for the assessment of flap volume after reconstructive surgery or radiotherapy in head and neck cancer.Scientific reports · 2025Article
- Evaluating artifact-free four-dimensional computer tomography with 16 cm detector array.Journal of applied clinical medical physics · 2025Article
- Comprehensive Image Quality Evaluation and Motion Phantom Studies of an Ultra-Fast (6-Second) Cone-Beam Computed Tomography Imaging System on a Ring Gantry Linear Accelerator.Advances in radiation oncology · 2025Article
- Abdominal MR Multitasking for radiotherapy treatment planning: A motion-resolved and multicontrast 3D imaging approach.Magnetic resonance in medicine · 2025Article
- Cardiac substructure delineation in radiation therapy - A state-of-the-art review.Journal of medical imaging and radiation oncology · 2024Review
- Effect of replanning boost radiotherapy plan in locally advanced unresectable middle to lower thoracic esophageal cancer.Scientific reports · 2024Article
- ACR benchmark testing of a novel high-speed ring-gantry linac kV-CBCT system.Journal of applied clinical medical physics · 2024Article
- Identification of CT radiomic features robust to acquisition and segmentation variations for improved prediction of radiotherapy-treated lung cancer patient recurrence.Scientific reports · 2024Article
- Development and Validation of a 3D Resnet Model for Prediction of Lymph Node Metastasis in Head and Neck Cancer Patients.Journal of imaging informatics in medicine · 2024Article
- Radiological imaging protection: a study on imaging dose used while planning computed tomography for external radiotherapy in Japan.Journal of radiation research · 2024Article
Corrections and comments
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3 authors.
Funding
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Abstract
This article reviews publications related to the use of CT scans for radiotherapy treatment planning, specifically the impact of scan protocol changes on CT number and treatment planning dosimetry and on CT image quality. A search on PubMed and EMBASE and a subsequent review of references yielded 53 relevant articles. CT scan parameters significantly affect image quality. Some will also affect Hounsfield unit (HU) values, though this is not comprehensively reported on. Changes in tube kilovoltage and, on some scanners, field of view and reconstruction algorithms have been found to produce notable HU changes. The degree of HU change which can be tolerated without changing planning dose by >1% depends on the body region and size, planning algorithms, treatment beam energy and type of plan. A change in soft-tissue HU value has a greater impact than changes in HU for bone and air. The use of anthropomorphic phantoms is recommended when assessing HU changes. There is limited published work on CT scan protocol optimization in radiotherapy. Publications suggest that HU tolerances of ±20 HU for soft tissue and of ±50 HU for the lung and bone would restrict dose changes in the treatment plan to <1%. Literature related to the use of CT images in radiotherapy planning has been reviewed to establish the acceptable level of HU change and the impact on image quality of scan protocol adjustment. Conclusions have been presented and further work identified.
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