Emergency assessment of patients with acute abdominal pain using low-dose CT with iterative reconstruction: a comparative study.
Objectives: To determine if radiation dose delivered by contrast-enhanced CT (CECT) for acute abdominal pain can be reduced to the dose administered in abdominal radiography (<2.5 mSv) using low-dose CT (LDCT) with iterative reconstruction algorithms.Methods: One hundred and fifty-one consecutive pa...
| Publicado en: | European Radiology Vol. 27; no. 8; pp. 3300 - 3310 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Aug2017
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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=123837850&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 123837850 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Aug2017 vid: 27 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 123837850 123837850 143936589 NLM28083698 123837850 10.1007/s00330-016-4712-9 NLM28083698 123837850 ppf: 3300 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Emergency assessment of patients with acute abdominal pain using low-dose CT with iterative reconstruction: a comparative study. aug: au: Poletti, Pierre-Alexandre Becker, Minerva Becker, Christoph Halfon Poletti, Alice Rutschmann, Olivier Zaidi, Habib Perneger, Thomas Platon, Alexandra Becker, Christoph D Rutschmann, Olivier T affil: Department of Radiology , University Hospital of Geneva , 4 rue Gabrielle Perret-Gentil 1211 Geneva Switzerland sug: subj: Abdomen, Acute Radiographic Image Interpretation, Computer-Assisted Methods Aged Body Mass Index Human Adult Emergencies Radiography, Abdominal Methods Male Young Adult Radionuclide Imaging Middle Age Aged, 80 and Over Algorithms Female Abdomen, Acute Etiology Radiation Dosage Tomography, X-Ray Computed Methods Validation Studies Comparative Studies Evaluation Research Multicenter Studies Aged: 65+ years Adult: 19-44 years Middle Aged: 45-64 years Aged, 80 & over Male Female ab: Objectives: To determine if radiation dose delivered by contrast-enhanced CT (CECT) for acute abdominal pain can be reduced to the dose administered in abdominal radiography (<2.5 mSv) using low-dose CT (LDCT) with iterative reconstruction algorithms.Methods: One hundred and fifty-one consecutive patients requiring CECT for acute abdominal pain were included, and their body mass index (BMI) was calculated. CECT was immediately followed by LDCT. LDCT series was processed using 1) 40% iterative reconstruction algorithm blended with filtered back projection (LDCT-IR-FBP) and 2) model-based iterative reconstruction algorithm (LDCT-MBIR). LDCT-IR-FBP and LDCT-MBIR images were reviewed independently by two board-certified radiologists (Raters 1 and 2).Results: Abdominal pathology was revealed on CECT in 120 (79%) patients. In those with BMI <30, accuracies for correct diagnosis by Rater 1 with LDCT-IR-FBP and LDCT-MBIR, when compared to CECT, were 95.4% (104/109) and 99% (108/109), respectively, and 92.7% (101/109) and 100% (109/109) for Rater 2. In patients with BMI ≥30, accuracies with LDCT-IR-FBP and LDCT-MBIR were 88.1% (37/42) and 90.5% (38/42) for Rater 1 and 78.6% (33/42) and 92.9% (39/42) for Rater 2.Conclusions: The radiation dose delivered by CT to non-obese patients with acute abdominal pain can be safely reduced to levels close to standard radiography using LDCT-MBIR.Key Points: • LDCT-MBIR (<2.5 mSv) can be used to assess acute abdominal pain. • LDCT-MBIR (<2.5 mSv) cannot safely assess acute abdominal pain in obese patients. • LDCT-IR-FBP (<2.5 mSv) cannot safely assess patients with acute abdominal pain. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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