Rapid dynamic contrast-enhanced magnetic resonance imaging of the liver and portal vein

The British Journal of Radiology
J WardM A Smith

Abstract

The purpose of this study was firstly to show the diagnostic value of a rapid acquisition multislice sequence (TurboFLASH) during bolus injection of gadolinium-DTPA by comparing it with the pulse sequences currently used for abdominal studies and secondly to develop improved scanning protocols for the liver. Patients were referred for upper abdominal studies including portal vein assessment. 40 patients were imaged in the coronal plane using a multislice TurboFLASH (TF) sequence (TR = 100; TE = 4) acquired during a breath-hold period of 19 s. The short echo time allows up to 11 slices of 5 mm thickness to be acquired simultaneously. Images were obtained before, during and after bolus administration of Gd-DTPA. The slices from each acquisition were combined using a maximum intensity projection algorithm to include all the vessels on a single image. Initially each patient was scanned using a conventional axial T2 weighted spin-echo sequence (T2W-SE) (TR2000; TE = 45/90) and a coronal T1 weighted spin-echo sequence (TR450; TE = 15). The clarity of the demonstration of vascular anatomy was compared and scored for all sequences by two radiologists. Vessel patency, the conspicuity of mass lesions and the spread of tumour to adjacent ...Continue Reading

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Citations

Nov 1, 1996·Clinical Radiology·P J Robinson
Mar 27, 2007·Digestive Diseases and Sciences·Seyfettin KöklüMehmet Arhan
Feb 1, 1994·Clinical Radiology·J BrailsfordP J Robinson
Aug 1, 1993·Clinical Radiology·A SaifuddinA G Chalmers
Jan 1, 1997·Journal of Magnetic Resonance Imaging : JMRI·F D KnollmannR Felix
Oct 10, 1998·Investigative Radiology·D B Stafford-JohnsonM R Prince

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