Improving resolution of head and neck CTA using the small x-ray tube focal spot.
CT-resolution depends on tube focal spot size. To investigate the effect of reducing focal spot on vessel wall clarity, 22 patients underwent head and neck CTA acquisition with large and small focal spot size. Hounsfield density profile was assessed for each head and neck vessel separately, and sign...
| Publicado en: | Neuroradiology Vol. 61; no. 8; pp. 953 - 957 |
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| Autores principales: | , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Springer Nature
Aug2019
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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=137419890&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 137419890 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00283940 NYZ jtl: Neuroradiology issn: 00283940 maglogo: N pubinfo: dt: Aug2019 vid: 61 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 137419890 137419890 137419890 10.1007/s00234-019-02221-0 137419890 ppf: 953 ppct: 4 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Improving resolution of head and neck CTA using the small x-ray tube focal spot. aug: au: Rosskopf, Johannes Braun, Michael Beer, Meinrad Schmitz, Bernd L. affil: Department of Radiology, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany sug: subj: Computed Tomography Angiography Methods Radiographic Image Enhancement Head Radiography Neck Radiography Radiation Dosage Human Diagnostic Imaging Blood Vessels Pathology ab: CT-resolution depends on tube focal spot size. To investigate the effect of reducing focal spot on vessel wall clarity, 22 patients underwent head and neck CTA acquisition with large and small focal spot size. Hounsfield density profile was assessed for each head and neck vessel separately, and significantly sharper density increase at vessel borders was observed using smaller tube focus by an average of 9.9% to 82° angle degrees (p <.05). In conclusion, spatial resolution of CTA of head and neck vessels can be improved by using the small x-ray tube focal spot. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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