## Abstract ^1^H NMR localized spectroscopy (STEAM) can assess unambiguously the presence of free chemically unchanged silicone in animal tissue after injection of silicone oil. Although the signal—to—noise ratio obtained in ^1^H imaging is sufficient to detect the distribution of relatively large
In vivo proton spectroscopy of meningioma after preoperative embolization
✍ Scribed by F. D. Jüngling; A. K. Wakhloo; J. Hennig
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 621 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The time course of proton spectra of meningloma after embolization has been followed using a localized PRESS experiment with 135 ms of echo time. The most conspicuous findings were the observation of transient lactate signal within 24 h after blocking of the capillary bed. After that time large aliphatic signals from necrosis were observed, whereas other metabolite signals vanished. It was demonstrated, that tumor necrosis as shown by proton spectroscopy is complete within 4 days. This finding is significant for the timing of surgery, which can be performed after this period.
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