Karl-Heinz
Herrmann1, Pascal A. Baltzer, Ines Krumbein, Christian Geppert2,
Werner A. Kaiser, Jrgen R. Reichenbach1
1Medical Physics Group, Department of Diagnostic and
Interventional Radiology, University
Hospital Jena, Jena, Thringen, Germany; 2MR Oncology, Siemens
Healthcare, Erlangen
In
MR Mammography pathologic vascularisation is utilized for the diagnosis of
tumors. Many standard dynamic MRM protocols contain a delay of 35s, during
which the contrast agent is applied, between the native scan and the
following multiple post-CA scans. This injection delay can be efficiently
used to acquire additional dynamic data sets with both high temporal (5.7s)
and spatial resolution (0.9x0.9x1.5mm) using a 3D gradient echo view sharing
sequence with stochastic trajectories (TWIST). This allows to resolve the
arterial phase of the contrast agents first pass and helps to detect
anomalous arterial supply vessels to suspect lesions.
Keywords