Preoperative Evaluation for Volume Reduction Surgery of Pulmonary Emphysema Using MRI: Usefulness of HASTE (Half-Fourier Single-Shot Turbo SE) sequence during deep respiration

Izumi Togami, Masatoshi Tsunoda, Akihito Mitsumori, Shiro Akaki, Akio Tanaka, Yukiko Sangawa, Harutaka Niiya, Ikuo Joja, Yoshio Hiraki, Hiroshi Date

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Volume reduction surgery has recently been an important surgical procedure for patients with severe pulmonary emphysema. We compared the sagittal and coronal images taken by the HASTE sequence with those obtained by turbo FLASH during deep breathing and with CT images obtained under deep inspiration. Clear images were obtained from both sequences, without cardiac or respiratory motion artifacts. The emphysematous areas were demonstrated as low signal intensity areas, as in CT images. The ratio of signal intensity in the expiratory phase to that in the inspiratory phase was lower than that of volunteers in the HASTE sequence. The HASTE sequence provides useful information about respiratory movement as well as about changes in the pulmonary parenchyma when used for preoperative examination.

Original languageEnglish
Pages (from-to)520-522
Number of pages3
JournalNippon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica
Issue number8
Publication statusPublished - 1997
Externally publishedYes



  • MR imaging
  • Pulmonary emphysema
  • Volume reduction

ASJC Scopus subject areas

  • Medicine(all)

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