The effect of tube voltage combination on image artefact and radiation dose in dual-source dual-energy CT: comparison between conventional 80/140 kV and 80/150 kV plus tin filter for gout protocol.
Objectives: In dual-source CT, dual-energy (DE) performance is affected by various X-ray tube voltage combinations with and without tin filter (Sn). The purpose of this study was to assess the utility of the 80/150 Sn kV voltage combination in terms of image artefact and radiation dose for DECT gout...
| Publicado en: | European Radiology Vol. 29; no. 3; pp. 1248 - 1258 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Mar2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=134415279&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134415279 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Mar2019 vid: 29 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 134415279 134415279 NLM29987420 134415279 10.1007/s00330-018-5622-9 NLM29987420 134415279 ppf: 1248 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: The effect of tube voltage combination on image artefact and radiation dose in dual-source dual-energy CT: comparison between conventional 80/140 kV and 80/150 kV plus tin filter for gout protocol. aug: au: Jeon, Ji Young Lee, Sheen-Woo Jeong, Yu Mi Baek, Han Joo affil: Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21 Namdong-daero, 774beon-gil, Namdong-gu, 21565, Incheon, Republic of Korea sug: subj: Tomography, X-Ray Computed Methods Gout Radiation Dosage Tomography, X-Ray Computed Equipment and Supplies Artifacts Image Enhancement Methods Aged Metals Female Radiographic Image Enhancement Methods Middle Age Male Retrospective Design Human Validation Studies Comparative Studies Evaluation Research Multicenter Studies Funding Source Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Objectives: In dual-source CT, dual-energy (DE) performance is affected by various X-ray tube voltage combinations with and without tin filter (Sn). The purpose of this study was to assess the utility of the 80/150 Sn kV voltage combination in terms of image artefact and radiation dose for DECT gout protocol, compared with the conventional 80/140 kV.Methods: Seventy-four patients with suspected gout who underwent dual-source DECT examinations scanned at 80/140 kV (n = 37) and at 80/150 Sn kV (n = 37) were included. Patients' age, sex, and serum uric acid levels were matched between the two groups. The types and incidence of image artefacts and radiation dose were evaluated.Results: The 80/150 Sn kV group had significantly fewer patients with artefacts, compared to the 80/140 kV group [11 (30 %) of 37 vs 35 (94.6 %) of 37, p < 0.001]. Except for the motion artefact, the rest of the artefacts-skin, nail bed, submillimetre, motion, vascular, beam-hardening, clumpy artefact along tendon-were significantly less observed in the 80/150 Sn kV acquisitions. The dose-length product (DLP) and effective dose were significantly lower for the 80/150 Sn kV acquisitions compared with the 8s0/140 kV scans (DLP: 104.46 ± 10.66 mGy·cm vs 344.70 ± 56.39 mGy·cm, p < 0.001; effective dose: 1.04 ± 0.11 mSv vs 3.45 ± 0.56 mSv, p < 0.001).Conclusions: The 80/150 Sn kV voltage combination in dual-source DECT system could be used as one of the artefact reduction methods while reducing radiation dose for gout protocol when compared to the conventional 80/140 kV.Key Points: • DECT has emerged as the leading modality for non-invasive diagnosis of gout. • Various X-ray tube voltage combinations are now feasible in dual-source DECT. • The 80/150 Sn kV acquisition could facilitate artefact reduction in gout protocol. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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