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＜学術雑誌論文＞
1.5-Tesla pulsed arterial spin labeling灌流画像における頚動脈ステント留置前後の内頚動脈錐体骨部arterial transit artifactの変化
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| 概要 | Purpose : We investigated the relationship between the arterial transit artifact (ATA) of the petrous portion of the internal carotid artery (pICA) on 1.5-T pulsed arterial spin labeling (ASL) perfusi...on images and hemodynamic changes on digital subtraction angiography (DSA) before and after carotid artery stenting (CAS) in patients with ICA stenosis. Method : ASL images were taken with postlabeling delay (PLD) of 1.5 s and 2.0 s before and after CAS, and these findings were compared with those of DSA in nine patients. Results : On pre-CAS ASL, ATA of the pICA was visualized both on PLD 1.5 s and 2.0 s in six cases, in which DSA demonstrated stagnation of contrast medium in the pICA and delayed visualization of the distal MCA. Immediately after CAS, DSA showed improvement in these findings : pICA was either visualized or not visualized on ASL images at 1.5 s, and disappeared at 2.0s. Conclusion : The presence of ATA of the pICA both on PLD 1.5 and 2.0 s suggests stagnation of blood flow within pICA with delayed visualization of the MCA and its disappearance after the CAS demonstrates improvement of these findings.続きを見る |
| 目次 | はじめに 対象と方法 結果 1．代表症例呈示 2．CAS 前のMRA, ASL,DSA所見（Table1） 3．CAS後のDSA, MRA, ASL所見（Table1） 考察 結語 |
本文ファイル
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113-4_p073
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21.3 MB | 645 |
詳細
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| 登録日 | 2023.05.26 |
| 更新日 | 2023.05.26 |