Optimal T2-weighted MR cholangiopancreatographic images can be obtained after administration of gadoxetic acid

Radiology
Kyung Ah KimKi Whang Kim

Abstract

To compare the image quality and diagnostic performance with T2-weighted magnetic resonance (MR) cholangiopancreatographic images obtained before and after dynamic MR imaging performed with gadoxetic acid. This retrospective study was approved by the institutional review board, and informed consent was waived. Fifty-six patients suspected of having pancreatic or biliary disease underwent two-dimensional (2D) single-section and three-dimensional (3D) multisection MR cholangiopancreatography before and after dynamic imaging with gadoxetic acid. One radiologist measured the mean signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs) of the common bile duct on precontrast and postcontrast images. Two radiologists independently reviewed the 2D and 3D MR cholangiopancreatographic images in random order. The depiction of each segment of the pancreaticobiliary duct, the presence of artifacts, background suppression, and overall image quality were assessed according to a four-point scale. Paired t, McNemar, and Wilcoxon signed rank tests were performed with a power analysis. Interobserver agreement was assessed by using the kappa statistic. Mean SNRs at precontrast MR imaging (2D, 50.8 +/- 45.1 [standard deviation]; 3D, 54.7 ...Continue Reading

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Citations

Jul 4, 2013·Abdominal Imaging·Piero Boraschi, Francescamaria Donati
Dec 21, 2012·AJR. American Journal of Roentgenology·Sooah KimAndrew B Rosenkrantz
Jun 26, 2013·AJR. American Journal of Roentgenology·Christoph J ZechClaude B Sirlin
Oct 15, 2011·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Mark D GoodwinDamien L Stella
Jan 27, 2016·Advances in Therapy·Jessica LohrkeHubertus Pietsch
May 7, 2013·Magnetic Resonance Imaging Clinics of North America·Daniel Andrade Tinoco de SouzaKoenraad J Mortelé
Feb 16, 2012·Journal of Magnetic Resonance Imaging : JMRI·Alex FrydrychowiczScott B Reeder
Jul 17, 2013·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Utaroh MotosugiTsutomu Araki
Sep 10, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Dong Ho LeeUNKNOWN Korean Society of Abdominal Radiology

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