Investigative radiology
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Investigative radiology · May 2008
Comparative StudyQuantification of pancreatic lipomatosis and liver steatosis by MRI: comparison of in/opposed-phase and spectral-spatial excitation techniques.
The goal of the present study was the assessment of pancreatic and hepatic fat content applying 2 established magnetic resonance (MR) imaging techniques: in-phase/opposed-phase gradient-echo MR imaging and fat-selective spectral-spatial gradient-echo imaging. Results of both approaches were compared, and influences of T1- and T2*-related corrections were assessed. The possibility of a correlation between pancreatic lipomatosis and liver steatosis was investigated. ⋯ The presented results suggest that both methods are reliable tools for pancreatic and hepatic fat quantification. However, for reliable assessment of quantitative fat by the in-phase/opposed-phase technique, an additional measurement of T2* seems crucial.
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Investigative radiology · May 2008
Noncontrast 3D steady state free precession magnetic resonance angiography of the thoracic central veins using nonselective radiofrequency excitation over a large field of view: initial experience.
To evaluate the feasibility of three-dimensional (3D) steady state free precession (SSFP) magnetic resonance angiography (MRA) using nonselective radiofrequency excitation for the assessment of thoracic central veins. ⋯ Free breathing navigator-gated noncontrast 3D SSFP MRA with nonselective radiofrequency excitation provides high image quality and sufficient SNR and CNR for confident evaluation of thoracic central veins.
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Investigative radiology · May 2008
Comparative Study Clinical TrialPositron emission tomography/computed tomography and whole-body magnetic resonance imaging in staging of advanced nonsmall cell lung cancer--initial results.
To evaluate and compare positron emission tomography/computed tomography (PET/CT) with whole-body magnetic resonance imaging (wbMRI) in the correct staging of patients with advanced nonsmall cell lung cancer (NSCLC). ⋯ In the correct staging of advanced NSCLC, PET/CT has advantages in N-staging. This is of high relevance for therapy planning. WbMRI especially using volume interpolated breathhold examination sequences, has certain advantages in T-staging.