𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Motion-corrected free-breathing delayed enhancement imaging of myocardial infarction

✍ Scribed by Peter Kellman; Andrew C. Larson; Li-Yueh Hsu; Yiu-Cho Chung; Orlando P. Simonetti; Elliot R. McVeigh; Andrew E. Arai

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
570 KB
Volume
53
Category
Article
ISSN
0740-3194

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Following administration of Gd‐DTPA, infarcted myocardium exhibits delayed enhancement and can be imaged using an inversion‐recovery sequence. A conventional segmented acquisition requires a number of breath‐holds to image the heart. Single‐shot phase‐sensitive inversion‐recovery (PSIR) true‐FISP may be combined with parallel imaging using SENSE to achieve high spatial resolution. SNR may be improved by averaging multiple motion‐corrected images acquired during free breathing. PSIR techniques have demonstrated a number of benefits including consistent contrast and appearance over a relatively wide range of inversion recovery times (TI), improved contrast‐to‐noise ratio, and consistent size of the enhanced region. Comparison between images acquired using segmented breath‐held turbo‐FLASH and averaged, motion‐corrected, free‐breathing true‐FISP show excellent agreement of measured CNR and infarct size. In this study, motion correction was implemented using image registration postprocessing rather than navigator correction of individual frames. Navigator techniques may be incorporated as well. Magn Reson Med 53:194–200, 2005. Published 2004 Wiley‐Liss, Inc.

📜 SIMILAR VOLUMES

Free-breathing, nongated real-time delay
Free-breathing, nongated real-time delayed enhancement MRI of myocardial infarcts: A comparison with conventional delayed enhancement
✍ Jay S. Detsky; John J. Graham; Ram Vijayaraghavan; Labonny Biswas; Jeffrey A. St 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 315 KB

## Abstract ## Purpose To compare a free‐breathing, nongated, and black‐blood real‐time delayed enhancement (RT‐DE) sequence to the conventional inversion recovery gradient echo (IR‐GRE) sequence for delayed enhancement MRI. ## Materials and Methods Twenty‐three patients with suspected myocardia

Fast, three-dimensional free-breathing M
Fast, three-dimensional free-breathing MR imaging of myocardial infarction: A feasibility study
✍ Manojkumar Saranathan; Carlos E. Rochitte; Thomas K.F. Foo 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 464 KB

## Abstract Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented __k__‐space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12–16 successive breathhol

Determining the extent to which delayed-
Determining the extent to which delayed-enhancement images reflect the partition-coefficient of Gd-DTPA in canine studies of reperfused and unreperfused myocardial infarction
✍ Rebecca E. Thornhill; Frank S. Prato; Gerald Wisenberg; Gerald R. Moran; Jane Sy 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 621 KB

## Abstract MRI after a constant infusion (CI) of Gd‐DTPA has been used to identify the extent of myocardial infarction (MI). However, Gd‐DTPA‐enhanced “viability” imaging is more commonly performed with a bolus (for “delayed‐enhancement” (DE) imaging). This study sought to determine how image dela

Free-breathing high-spatial-resolution d
Free-breathing high-spatial-resolution delayed contrast-enhanced three-dimensional viability MR imaging of the myocardium at 3.0T: A feasibility study
✍ Yasuo Amano; Yoshio Matsumura; Shinichiro Kumita 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 390 KB 👁 1 views

## Abstract ## Purpose To assess the feasibility of free‐breathing high‐spatial‐resolution delayed contrast‐enhanced three‐dimensional (3D) viability magnetic resonance imaging (MRI) at 3.0T for the detection of myocardial damages. ## Materials and Methods Twenty‐five patients with myocardial di