Fast thoracic MRI as an alternative to chest x-ray: A retrospective evaluation of 287 patients

Marco Alì, Caterina Beatrice Monti, Francesco Secchi, Riccardo Spairani, Maurizio Speciani, Giovanni Di Leo, Francesco Sardanelli

Research output: Contribution to journalArticlepeer-review

Abstract

PURPOSE: To compare half-Fourier acquisition single-shot turbo spin-echo thoracic MRI (HASTE-MRI) with chest x-ray (CXR).

METHODS: A total of 287 patients (median age 53 years) undergoing both axial HASTE-MRI and CXR (<7 days apart) were retrospectively analyzed. Pulmonary nodules and consolidations, pleural effusion, and cardiac or aortic enlargement were considered. Detection rate (DR) and intra- and inter-technique agreement for both HASTE-MRI and CXR, were assessed.

RESULTS: Pulmonary nodule DR was 1.7% (5/287) at both techniques (perfect inter-technique agreement); inter-reader agreement was perfect for HASTE-MRI (κ = 1.000) and modest for CXR (κ = 0.393). Pleural effusion DR at HASTE-MRI (19.1%, 55/287) was higher (p < 0.001) than at CXR (13.9%, 40/287), but their agreement was almost perfect (κ = 0.812); inter-reader agreement was almost perfect for HASTE-MRI (κ = 0.902) and substantial for CXR (κ = 0.773). Pulmonary consolidation DR at HASTE-MRI (8.4%, 24/287) was similar (p = 0.625) to that at CXR (7.7%, 22/287), with an almost perfect inter-technique agreement (κ = 0.905); inter-reader agreement was moderate for both HASTE-MRI (κ = 0.639) and CXR (κ = 0.554). Cardiac enlargement DR at HASTE-MRI (45.3%, 130/287) was borderline significantly lower (p = 0.057) than that at CXR (48.1%, 138/287), with an almost perfect inter-technique agreement (κ = 0.902); inter-reader agreement was substantial for both HASTE-MRI (κ = 0.798) and CXR (κ = 0.744). Aortic dilation DR at HASTE-MRI (17.7%, 51/287) was significantly higher (p < 0.001) than that at CXR (9.7%, 28/287), with a substantial inter-technique agreement (κ = 0.648); inter-reader agreement was moderate for both HASTE-MRI (κ = 0.724) and CXR (κ = 0.346).

CONCLUSION: HASTE-MRI and CXR showed at least a comparable DR for thoracic cardiac and non-cardiac findings.

Original languageEnglish
Pages (from-to)244-248
Number of pages5
JournalClinical Imaging
Volume60
Issue number2
DOIs
Publication statusPublished - Apr 2020

Keywords

  • Female
  • Humans
  • Lung Diseases
  • Magnetic Resonance Imaging/methods
  • Male
  • Middle Aged
  • Radiography
  • Retrospective Studies
  • Thorax/diagnostic imaging
  • Tomography, X-Ray Computed/methods
  • X-Rays

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