ArticleQuantitative imaging in medicine and surgery2021
Split-filter dual-energy CT pulmonary angiography for the diagnosis of acute pulmonary embolism: a study on image quality and radiation dose.
Article in Quantitative imaging in medicine and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 7 citations in OpenAlex.
- Clinical value of the 70-kVp ultra-low-dose CT pulmonary angiography with deep learning image reconstruction.European radiology · 2026Article
- Review of Clinical Applications of Dual-Energy CT in Patients after Endovascular Aortic Repair.Journal of clinical medicine · 2023Review
- Photon-counting CT for diagnosis of acute pulmonary embolism: potential for contrast medium and radiation dose reduction.European radiology · 2023Article
- High-pitched tin-filtered CT pulmonary angiography in radiation dose reduction for pulmonary embolism investigations in young females.Emergency radiology · 2023Article
- Pros and Cons of Dual-Energy CT Systems: "One Does Not Fit All".Tomography (Ann Arbor, Mich.) · 2023Review
- Clinical value and feasibility of CT pulmonary angiography with personalized injection of contrast agent in pulmonary embolism.American journal of translational research · 2022Article
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7 authors at 1 institution in 1 country.
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Abstract
backgroundComputed tomography (CT) pulmonary angiography is the diagnostic reference standard in suspected pulmonary embolism (PE). Favorable results for dual-energy CT (DECT) images have been reported for this condition. Nowadays, dual-energy data acquisition is feasible with different technical options, including a single-source split-filter approach. Therefore, the aim of this retrospective study was to investigate image quality and radiation dose of thoracic split-filter DECT in comparison to conventional single-energy CT in patients with suspected PE.
methodsA total of 110 CT pulmonary angiographies were accomplished either as standard single-energy CT with automatic tube voltage selection (ATVS) (n=58), or as split-filter DECT (n=52). Objective [pulmonary artery CT attenuation, signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR)] and subjective image quality [four-point Likert scale; three readers (R)] were compared among the two study groups. Size-specific dose estimates (SSDE), dose-length-product (DLP) and volume CT dose index (CTDIvol) were assessed for radiation dose analysis.
resultsSplit-filter DECT images yielded 67.7% higher SNR (27.0
conclusionsIn the diagnostic workup of acute PE, the split-filter allows for dual-energy data acquisition from single-source single-layer CT scanners. The existing opportunity to assess pulmonary "perfusion" based on analysis of iodine distribution maps is associated with higher radiation dose in terms of increased SSDE than conventional single-energy CT with ATVS. Moreover, a proportion of up to 3.8% non-diagnostic examinations in the current reference standard test for PE is not negligible.
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