title: Usefulness of thin-section single-shot turbo spin echo with half-Fourier acquisition in evaluation of local invasion of lung cancer.
abstract: OBJECTIVE
  To evaluate the usefulness of thin-section single-shot turbo spin echo with half-Fourier acquisition (SS-TSE-HF) alone for evaluation of local invasion of lung cancer.
  
  
  METHODS
  Our Institutional Review Board approved this retrospective study. Thirty-six patients with lung cancer who underwent magnetic resonance imaging (MRI) for evaluation of local invasion followed by curative surgery from July 2008 to June 2012 were enrolled in this study. Two reviewers independently and blindly reviewed computed tomography (CT) and MRI (thin-section SS-TSE-HF and conventional MRI, which consisted of conventional axial SS-TSE-HF, dynamic MRI with respiratory and/or cardiac cine, and T1 -weighted high-resolution isotropic volume examination [THRIVE]) for the presence of local invasion. Diagnostic performances were evaluated using gross surgical findings and pathological results as a standard reference.
  
  
  RESULTS
  The overall diagnostic performance for detecting local invasion of lung cancer between the two reviewers were as follows: specificity and accuracy of thin-section SS-TSE-HF (89.0% and 87.5%) were significantly higher than those of CT (25.6% and 46.9%, P < 0.001 for both) or conventional MRI (61.0% and 69.5%, P < 0.001 and P = 0.008, respectively). Sensitivity was 84.8% for thin-section SS-TSE-HF with the same value for CT (P = 0.246) and conventional MRI (P = 0.209).
  
  
  CONCLUSIONS
  Thin-section SS-TSE-HF sequence alone without any contrast agent demonstrated a relatively high diagnostic performance in evaluation of local invasion of lung cancer.
authors: Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University Health System, Seoul, Korea.
authors: Suyon
authors: S
authors: Chang
authors: Sae Rom
authors: SR
authors: Hong
authors: Young Jin
authors: YJ
authors: Kim
authors: Yoo Jin
authors: YJ
authors: Hong
authors: Jin
authors: J
authors: Hur
authors: Byoung Wook
authors: BW
authors: Choi
authors: Hye-Jeong
authors: HJ
authors: Lee
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016477:Artifacts; D005260:Female; D005583:Fourier Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed
keywords: HASTE; local invasion; lung cancer; single-shot turbo spin echo with half-Fourier acquisition; thin-section