𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Incidental magnetization transfer contrast in fast spin-echo imaging of cartilage

✍ Scribed by Lawrence Yao; Amilcare Gentili; Albert Thomas

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
460 KB
Volume
6
Category
Article
ISSN
1053-1807

No coin nor oath required. For personal study only.

✦ Synopsis

In this article, the authors illustrate the contributions of incidental magnetization transfer contrast (MTC) to the signal characteristics of patellar cartilage on routine, multiplanar fast spin-echo (FSE) images. Incidental MTC diminishes the signal of patellar cartilage by 30% on routine FSE scans. Spectral fat saturation does not signiflcantly increase incidental MTC on multislice FSE acquisitions. By increasing the contrast between synovial fluid and patellar cartilage, incidental MTC may account for greater conspicuousness of chondromalacia on FSE as compared to conventional spin-echo images. Incidental MTC may also alter or obscure the normal, laminar appearance of hyaline cartilage on short-TE. FSE images. Index terms: Knee * MR studies * Cartilage -Fast spin-echo * Magnetization transfer contrast

📜 SIMILAR VOLUMES

Impact of incidental magnetization trans
Impact of incidental magnetization transfer effects on inversion-recovery sequences that use a fast spin-echo readout
✍ Simon J.P. Meara; Gareth J. Barker 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 210 KB

## Abstract Multislice MR images obtained using a fast spin‐echo (FSE) readout are strongly affected by magnetization transfer (MT) effects, which will cause a decrease in the observed longitudinal relaxation times for tissues with a large bound water component. This is pertinent for FSE‐based inve

Dynamic contrast-enhanced MR imaging of
Dynamic contrast-enhanced MR imaging of the pituitary gland with fast spin-echo technique
✍ Wayne L. Davis; James N. Lee; Brian D. King; H. Ric Harnsberger 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 404 KB 👁 1 views

## Abstract Preliminary work has demonstrated that dynamic contrast material—enhanced magnetic resonance imaging improves the detection sensitivity for pituitary microadenomas. The authors present a new method of obtaining dynamic contrastenhanced pituitary images with a short TR/TE fast spin‐echo

Density Matrix Simulations of the Effect
Density Matrix Simulations of the Effects of J Coupling in Spin Echo and Fast Spin Echo Imaging
✍ L.A. Stables; R.P. Kennan; A.W. Anderson; J.C. Gore 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 309 KB

A computer simulation has been used to calculate the effects of J coupling on the amplitudes of echoes produced by CPMG sequences. The program computes the evolution of the density matrix for different pulse intervals and can predict the signals obtainable from spin systems of any size and complexit

Direct Observation of the Magnetization
Direct Observation of the Magnetization Exchange Dynamics Responsible for Magnetization Transfer Contrast in Human Cartilage in Vitro
✍ G. A. Morris; A. J. Freemont 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 433 KB

## Abstract Saturating irradiation far off‐resonance can lead to diminution in the water signal seen in MRI, giving rise to magnetization transfer contrast. This results from transfer of magnetization between “solid” protons with restricted motion, which give rise to a band some tens of kilohertz w

Magnetization transfer contrast imaging
Magnetization transfer contrast imaging in bovine and human cortical bone applying an ultrashort echo time sequence at 3 Tesla
✍ Fabian Springer; Petros Martirosian; Jürgen Machann; Nina F. Schwenzer; Claus D. 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 359 KB

## Abstract Magnetization transfer (MT) contrast imaging reveals interactions between free water molecules and macromolecules in a variety of tissues. The introduction of ultrashort echo time (UTE) sequences to clinical whole‐body MR scanners expands the possibility of MT imaging to tissues with ex

MRI of bone tumors: Fast STIR imaging as
MRI of bone tumors: Fast STIR imaging as a substitute for T1-weighted contrast-enhanced fat-suppressed spin-echo imaging
✍ Osamu Tokuda; Noriko Hayashi; Naofumi Matsunaga 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB

## Abstract ## Purpose To compare the usefulness of short inversion recovery (STIR) and T1‐weighted, contrast‐enhanced, fat‐suppressed (T1W‐CEFS) sequences for the evaluation of bone tumors. ## Materials and Methods Eighteen patients with 19 bone tumors who underwent both STIR and T1W‐CEFS imagi