Preoperative evaluation for volume reduction surgery of pulmonary emphysema using MRI: usefulness of HASTE (half-Fourier single-shot turbo SE) sequence during deep respiration

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...

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Bibliographic Details
Published inNihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Vol. 57; no. 8; p. 520
Main Authors Togami, I, Tsunoda, M, Mitsumori, A, Akaki, S, Tanaka, A, Sangawa, Y, Niiya, H, Joja, I, Hiraki, Y, Date, H
Format Journal Article
LanguageJapanese
Published Japan 01.07.1997
Subjects
Adult
Aged
Diaphragm - physiopathology
Female
Humans
Magnetic Resonance Imaging - methods
Male
Middle Aged
Pneumonectomy
Pulmonary Emphysema - diagnosis
Pulmonary Emphysema - physiopathology
Respiration
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Summary: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.
ISSN:0048-0428