𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An improved 3-D Look–Locker imaging method for T1 parameter estimation

✍ Scribed by Ken Nkongchu; Giles Santyr

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
343 KB
Volume
23
Category
Article
ISSN
0730-725X

No coin nor oath required. For personal study only.

✦ Synopsis

The 3-D Look-Locker (LL) imaging method has been shown to be a highly efficient and accurate method for the volumetric mapping of the spin lattice relaxation time T(1). However, conventional 3-D LL imaging schemes are typically limited to small tip angle RF pulses (5 degrees ), thereby improving the SNR and the accuracy of the method. In phantom studies, a mean T(1) measurement accuracy of less than 2% (0.2-3.1%) using a tip angle of 10 degrees was obtained for a range of T(1) from approximately 300 to 1,700 ms with a measurement time increase of only 15%. This accuracy compares favorably with the conventional 3-D LL method that provided an accuracy between 2.2% and 7.3% using a 5 degrees flip angle.

📜 SIMILAR VOLUMES

Accuracy of T1 measurement with 3-D Look
Accuracy of T1 measurement with 3-D Look-Locker technique for dGEMRIC
✍ Wei Li; Rachel Scheidegger; Ying Wu; Anthony Vu; Pottumarthi V. Prasad 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 373 KB

## Abstract ## Purpose To validate the accuracy of T1 measurement by three‐dimensional Look‐Locker method (3D LL) for delayed gadolinium‐enhanced MRI of cartilage (dGEMRIC) of human subjects with and without osteoarthritis (OA), as compared with two‐dimensional inversion recovery fast spin‐echo (2