Comparison between gradient and spin-echo (GRASE) and compressed sensing sequences for single breath-hold three-dimensional magnetic resonance cholangiopancreatography in patients with T 1 hyperintense bile

• Published in: European journal of radiology 2022-05, Vol.150, p.110279
• Main Authors: Morimoto-Ishikawa, Daisuke, Hyodo, Tomoko, Takenaka, Mamoru, Matsukubo, Yuko, Numoto, Isao, Itoh, Makoto, Ohmi, Masato, Kamata, Ken, Ueda, Yu, Wakana, Miyuki, Kudo, Masatoshi, Saito, Shigeyoshi, Ishii, Kazunari
• Format: Article
• Language: English
• Subjects: Bile; Cholangiopancreatography, Magnetic Resonance - methods; Gallstones; Humans; Imaging, Three-Dimensional - methods; Pancreatic Diseases; Retrospective Studies
• ISSN: 1872-7727
• DOI: 10.1016/j.ejrad.2022.110279

To compare image quality and the detectability of gallstones in patients with T hyperintense bile between single breath-hold three-dimensional (3D) magnetic resonance cholangiopancreatography (MRCP) with gradient and spin-echo (GRASE) and with compressed sensing (CS). We retrospectively evaluated patients who underwent MRCP using GRASE and CS and had hyperintense bile on T -weighted fat-suppressed images. The relative duct-to-periductal contrast ratios (RCs) of each bile duct segment were calculated. Pancreaticobiliary duct visibility, motion artifacts, background suppression, and overall image quality were scored on a 5-point scale. The Wilcoxon signed-rank test was used to analyze differences in qualitative and quantitative results. Diagnostic performance in detecting common bile duct (CBD) and gallbladder stones was assessed using receiver operating characteristic (ROC) curves. In total, 96 patients were included in the study. RCs of all bile duct segments in GRASE MRCP were significantly lower than those in CS MRCP (p