𝔖 Bobbio Scriptorium
✦   LIBER   ✦

High-resolution time-resolved contrast-enhanced MR abdominal and pulmonary angiography using a spiral-TRICKS sequence

✍ Scribed by Jiang Du; Mark Bydder

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
345 KB
Volume
58
Category
Article
ISSN
0740-3194

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Both high spatial resolution and high temporal resolution are desirable for contrast‐enhanced magnetic resonance angiography (CE‐MRA) in order to depict the arterial vasculature. In this work a fast MR pulse sequence (spiral time‐resolved imaging with contrast kinetics (Spiral‐TRICKS)) with spiral readout in‐plane and Cartesian slice encoding was developed whereby the slices are partitioned into multiple regions and acquired in the order used with the TRICKS sequence. The combination of highly efficient spiral sampling with TRICKS acquisition significantly reduced imaging time requirements. A unit second temporal reconstructed frame rate could be achieved for three‐dimensional (3D) CE‐MRA without undersampling of the spiral trajectories. Image quality was improved through spiral trajectory measurement and field‐map correction. Phantom and volunteer studies were performed to demonstrate the feasibility of this technique. Magn Reson Med, 2007. © 2007 Wiley‐Liss, Inc.

📜 SIMILAR VOLUMES

Time-resolved contrast-enhanced pulmonar
Time-resolved contrast-enhanced pulmonary MR angiography using sensitivity encoding (SENSE)
✍ Yoshiharu Ohno; Hideaki Kawamitsu; Takanori Higashino; Daisuke Takenaka; Hirokaz 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 388 KB

## Purpose: To evaluate the relationship between gadolinium concentration and signal-to-noise ratio (snr) on sensitivity encoding (sense) images, and determine the appropriate bolus injection protocol for visualizing pulmonary circulation. ## Materials and methods: Eighteen different gadolinium c

Improved vessel delineation in keyhole t
Improved vessel delineation in keyhole time-resolved contrast-enhanced MR angiography using a gadolinium doped flush
✍ Jan Beranek-Chiu; John M. Froehlich; Klaus U. Wentz; Alexis N. Doert; Christoph 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 362 KB

## Abstract ## Purpose To prospectively assess the influence of a gadolinium doped saline flush compared with a pure saline flush on the image quality of the supra‐aortic vessels using time‐resolved contrast‐enhanced MR angiography (4D CE‐MRA) in a randomized double blind clinical trial. ## Mater

Visualization of external carotid artery
Visualization of external carotid artery and its branches: Non–contrast-enhanced MR angiography using balanced steady-state free-precession sequence and a time-spatial labeling inversion pulse
✍ Naoe Satogami; Tomohisa Okada; Takashi Koyama; Kimio Gotoh; Toshikazu Kamae; Kao 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 301 KB

## Abstract ## Purpose To evaluate visibility of the external carotid artery (ECA) and its branches using three‐dimensional (3D) balanced steady‐state free‐precession (SSFP) MR angiography with a time‐spatial labeling inversion pulse (Time‐SLIP), and to provide an optimal value of the inversion ti