1999年6月
Single breath-hold left ventricular volume measurement by 0.3-sec turbo fast low-angle shot MR imaging
AMERICAN JOURNAL OF ROENTGENOLOGY
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- 巻
- 172
- 号
- 6
- 開始ページ
- 1645
- 終了ページ
- 1649
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2214/ajr.172.6.10350309
- 出版者・発行元
- AMER ROENTGEN RAY SOC
OBJECTIVE. In this study, we measured global cardiac parameters during a single breath-hold using T1-weighted single-shot turbo fast low-angle shot (turboFLASH) MR imaging.
SUBJECTS AND METHODS. Ten cardiac patients who had undergone cardiac catheterization were examined with MR imaging to evaluate cardiac function. On average, 10 slices, which covered enough of the heart to measure the left ventricular volume, were acquired in a single breath-hold. During the acquisition of each slice, T1-weighted turboFLASH MR imaging with inversion recovery of both end diastole and end systole was sequentially accomplished twice in the same R-R interval. The end-diastolic volume, end-systolic volume, and ejection fraction calculated from MR images were compared with data obtained from left ventriculography.
RESULTS. In these 10 cardiac patients, the ejection fraction calculated from turboFLASH MR images showed a good correlation with the measurements from radiographic left ventriculography (r = .87). The inter- and intraobserver variabilities in calculating the ejection fraction were 7.8% and 4.7%, respectively.
CONCLUSION. Single-shot turboFLASH MR imaging with inversion recovery can provide data for the quantification of the ejection fraction during a single breath-hold.
SUBJECTS AND METHODS. Ten cardiac patients who had undergone cardiac catheterization were examined with MR imaging to evaluate cardiac function. On average, 10 slices, which covered enough of the heart to measure the left ventricular volume, were acquired in a single breath-hold. During the acquisition of each slice, T1-weighted turboFLASH MR imaging with inversion recovery of both end diastole and end systole was sequentially accomplished twice in the same R-R interval. The end-diastolic volume, end-systolic volume, and ejection fraction calculated from MR images were compared with data obtained from left ventriculography.
RESULTS. In these 10 cardiac patients, the ejection fraction calculated from turboFLASH MR images showed a good correlation with the measurements from radiographic left ventriculography (r = .87). The inter- and intraobserver variabilities in calculating the ejection fraction were 7.8% and 4.7%, respectively.
CONCLUSION. Single-shot turboFLASH MR imaging with inversion recovery can provide data for the quantification of the ejection fraction during a single breath-hold.
- リンク情報
- ID情報
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- DOI : 10.2214/ajr.172.6.10350309
- ISSN : 0361-803X
- PubMed ID : 10350309
- Web of Science ID : WOS:000080427900038