## Abstract Sequential MR imaging with gadolinium‐diethylenetriaminepentaacetic acid (Gd‐DTPA) and sequential measurements of plasma Gd‐DTPA concentration by inductively coupled plasma atomic emission spectroscopy (ICP‐AES) were used to estimate the blood‐to‐tissue transport coefficient (K~i~) in t
Measurement of blood-brain barrier permeability using dynamic Gd-DTPA scanning—a comparison of methods
✍ Scribed by H. B. W. Larsson; P. S. Tofts
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 172 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
Two recently published methods of blood‐brain barrier permeability measurement using Gd‐DTPA scanning are compared by authors representing each group. The physiological models are reconciled. Results from both groups agree. These show that the transfer constant (the permeability surface area product per unit volume of tissue) of the defective blood‐brain barrier in multiple sclerosis is in the range 1‐12·10^−4^s^−1^ © 1992 Academic Press, Inc.
📜 SIMILAR VOLUMES
Leakage of Gd-DTPA through a defective blood-brain barrier is measured quantitatively using dynamic MRI scanning, in which repeated scans are made after a bolus injection. Image registration artifacts are minimized; a dose of 0.1 mM/kg and an IR sequence enable enhancement to be measured quantitativ
## Abstract Breakdown of the blood‐brain barrier (BBB), occurring in many neurological diseases, has been difficult to measure noninvasively in humans. Dynamic contrast‐enhanced magnetic resonance imaging measures BBB permeability. However, important technical challenges remain and normative data f