MR Colonography With Parallel Acquisition Techniques To Increase Spatial Resolution: A Feasibility Study

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Journal Title, Volume, Page: 
Proc. Intl. Soc. Mag. Reson. Med. 13 (2005)
Year of Publication: 
2005
Authors: 
C. A. Kuehle
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
Waleed Ajaj
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
Current Affiliation: 
Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
K. Reiter
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
S. Maderwald
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
S. C. Ladd
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
J. Barkhausen
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
T. C. Lauenstein
Institute of Diagnostic and Interventional Radiology, University Hospital of Essen, Essen, NRW, Germany
Preferred Abstract (Original): 

Magnet resonance colonography (MRC) is a promising method for the depiction of colorectal pathologies. For colorectal masses exceeding 10mm, high accuracy values (92% to 100%) have been reported (1). However, due to limited spatial resolution, the detection rate of smaller pathologies is only fair. Another limitation of current MRC protocols is related to relatively long data acquisition of up to 25 seconds, which need to be performed under breath-hold conditions. Especially in elderly patients or patients with diseases of the respiratory tract, this can result in severe motion artefacts hampering a reliable assessment of the colon. The underlying problems may be solved by new image acquisition techniques providing a higher spatial resolution and / or a decreased acquisition time. These parallel acquisition techniques (PAT) have recently been successfully applied for MR colonography in an in-vitro study (2). Aim of the current trial was to prove the practicability of PAT imaging for MR colonography in-vivo.

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