Time-resolved 3D MR angiography of the abdomen with a real-time system

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
O WiebenW Block

Abstract

This study reports on the implementation of a real-time MR acquisition, reconstruction, and display system on standard hardware for 3D contrast-enhanced MR abdominal angiography. The system allows for dynamic imaging of the contrast passage with good spatial resolution in a single breathhold. It is capable of synchronously acquiring and processing multiple coil data. Bolus arrival can be detected confidently from the display of MIP images from sagittal 3D slabs with moderate spatial resolution. Upon detection of the contrast agent, the patient is asked to hold their breath and a novel 3D acquisition is started for a coronal volume. Temporal imaging within the breathhold is achieved through applying a modified time-resolved imaging of contrast kinetics (TRICKS) technique with elliptical centric view ordering. The technique displays contrast passage from the arterial phase through enhancement of the hepatic venous system. It also provides the ability to quantify motion of the diaphragm over a long breathhold.

References

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Citations

Dec 25, 2008·Circulation·Shellie C JosephsUNKNOWN American Heart Association Writing Group 3
Dec 3, 2014·Clinical Neurology and Neurosurgery·Karl A SillayKarl K Vigen
Jun 26, 2013·Journal of Vascular and Interventional Radiology : JVIR·Ga-Young SuhChristopher P Cheng
Jul 27, 2006·Journal of Vascular and Interventional Radiology : JVIR·Thomas K RheeReed A Omary
Sep 5, 2015·Journal of Magnetic Resonance Imaging : JMRI·Thomas A HopeShreyas S Vasanawala
May 23, 2015·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Jennifer A SteedenVivek Muthurangu
Jul 13, 2016·Therapeutic Delivery·Raghu RaghavanJohn H Sampson
Jun 23, 2006·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ethan BrodskyWalter F Block

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