Magnetic resonance cholangiopancreatography with GRASE sequence at 3.0T: does it improve image quality and acquisition time as compared with 3D TSE?

2018 ◽  
Vol 28 (6) ◽  
pp. 2436-2443 ◽  
Author(s):  
Morikatsu Yoshida ◽  
Takeshi Nakaura ◽  
Taihei Inoue ◽  
Shota Tanoue ◽  
Sentaro Takada ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Acquisition Time ◽  
Improve Image Quality

Magnetic resonance cholangiopancreatography at 3 Tesla: Image quality comparison between 3D compressed sensing and 2D single-shot acquisitions

2019 ◽  
Vol 115 ◽  
pp. 53-58 ◽  
Author(s):  
Fabian K. Lohöfer ◽  
Georgios A. Kaissis ◽  
Michael Rasper ◽  
Christoph Katemann ◽  
Andreas Hock ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Compressed Sensing ◽  
Magnetic Resonance Cholangiopancreatography ◽  
3 Tesla ◽  
Single Shot

Contrast behavior and image quality of magnetic resonance cholangiopancreatography imaging using variable echo times at 3.0 T

2008 ◽  
Vol 32 (5) ◽  
pp. 362-366 ◽  
Author(s):  
Hiroyoshi Isoda ◽  
Yoji Maetani ◽  
Masako Kataoka ◽  
Shigeki Arizono ◽  
Kotaro Shimada ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Magnetic Resonance Cholangiopancreatography ◽  
3.0 T

Usefulness of 3D hybrid profile order technique with 3T magnetic resonance cholangiography: Comparison of image quality and acquisition time

2016 ◽  
Vol 44 (5) ◽  
pp. 1346-1353 ◽  
Author(s):  
Koichi Yokoyama ◽  
Takeshi Nakaura ◽  
Yuji Iyama ◽  
Seiji Sakamoto ◽  
Atsushi Takemura ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Magnetic Resonance Cholangiography ◽  
Acquisition Time

scholarly journals Magnetic resonance cholangiopancreatography with compressed sensing at 1.5 T: clinical application for the evaluation of branch duct IPMN of the pancreas

2020 ◽  
Vol 30 (11) ◽  
pp. 6014-6021
Author(s):  
Benjamin Henninger ◽  
Michael Steurer ◽  
Michaela Plaikner ◽  
Elisabeth Weiland ◽  
Werner Jaschke ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Compressed Sensing ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Rank Test ◽  
Breath Hold ◽  
Branch Duct ◽  
Significant Difference ◽  
Lesion Conspicuity ◽  
Short Breath

Abstract Objectives To evaluate magnetic resonance cholangiopancreatography (MRCP) with compressed sensing (CS) for the assessment of branch duct intraductal papillary mucinous neoplasm (BD-IPMN) of the pancreas. For this purpose, conventional navigator-triggered (NT) sampling perfection with application-optimized contrast using different flip angle evolutions (SPACE) MRCP was compared with various CS-SPACE-MRCP sequences in a clinical setting. Methods A total of 41 patients (14 male, 27 female, mean age 68 years) underwent 1.5-T MRCP for the evaluation of BD-IPMN. The MRCP protocol consisted of the following sequences: conventional NT-SPACE-MRCP, CS-SPACE-MRCP with long (BHL, 17 s) and short single breath-hold (BHS, 8 s), and NT-CS-SPACE-MRCP. Two board-certified radiologists evaluated image quality, duct sharpness, duct visualization, lesion conspicuity, confidence, and communication with the main pancreatic duct in consensus using a 5-point scale (1–5), with higher scores indicating better quality/delineation/confidence. Maximum intensity projection reconstructions and originally acquired data were used for evaluation. Wilcoxon signed-rank test was used to compare the intra-individual difference between sequences. Results BHS-CS-SPACE-MRCP had the highest scores for image quality (3.85 ± 0.79), duct sharpness (3.81 ± 1.05), and duct visualization (3.81 ± 1.01). There was a significant difference compared with NT-CS-SPACE-MRCP (p < 0.05) but no significant difference to the standard NT-SPACE-MRCP (p > 0.05). Concerning diagnostic quality, BHS-CS-SPACE-MRCP had the highest scores in lesion conspicuity (3.95 ± 0.92), confidence (4.12 ± 1.08), and communication (3.8 ± 1.06), significantly higher compared with NT-SPACE-MRCP, BHL-SPACE-MRCP, and NT-CS-SPACE-MRCP (p = <0.05). Conclusions MRCP with CS 3D SPACE for the evaluation of BD-IPMN at 1.5 T provides the best results using a short breath-hold sequence. This approach is feasible and an excellent alternative to standard NT 3D MRCP sequences. Key Points • 1.5-T MRCP with compressed sensing for the evaluation of branch duct IPMN is a feasible method. • Short breath-hold sequences provide the best results for this purpose.

Magnetic resonance cholangiopancreatography: image quality, ductal morphology, and value of additional T2‐ and T1‐weighted sequences for the assessment of suspected pancreatic cancer

2005 ◽  
Vol 46 (2) ◽  
pp. 117-125 ◽  
Author(s):  
E. Lopez Hänninen ◽  
J. Ricke ◽  
H. Amthauer ◽  
R. Röttgen ◽  
M. Böhmig ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Contrast Material ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Pancreatic Tumors ◽  
Single Shot ◽  
Pancreatic Lesion ◽  
Thick Slab ◽  
Weighted Sequences

Purpose: To assess image quality and duct morphology on magnetic resonance cholangiopancreatography (MRCP) and also the value of additional T2‐ and T1‐weighted sequences for differentiation of benignity and malignancy in patients with suspected pancreatic tumors. Material and Methods: One‐hundred‐and‐fourteen patients received MRCP and unenhanced and contrast material‐enhanced MR imaging. MR results were analyzed independently by two blinded readers, and subsequently correlated with the results from surgery, biopsy, and follow‐up. Assessment included the evaluation of image quality, duct visualization and morphology, and the differentiation of pancreatic lesion status (benign versus malignant). Results: Overall, 49 patients had benign final diagnoses, while 65 had a malignant diagnosis. Image quality of single‐shot thick‐slab MRCP was rated significantly better than the MIP images of multisection MRCP. With MRCP alone, the two readers' accuracy in the assessment of pancreatic lesion status was 72% (95% CI, 64% to 83%) and 69% (95% CI, 56% to 77%), respectively; with the addition of T2‐ and T1‐weighted images the accuracy significantly improved to 89% (95% CI, 82% to 95%) and 84% (95% CI, 77% to 92%) for readers 1 and 2, respectively. Conclusion: Single‐shot thick‐slab MRCP and multisection MRCP provide complementary results; however, single‐shot MRCP had superior image quality. Moreover, assessment of ductal morphology with MRCP alone facilitated the diagnosis of different pathologic conditions of the pancreatobiliary system in the majority of patients. However, with the addition of T2‐ and T1‐weighted sequences the overall diagnostic accuracy was significantly improved and thus we consider that a comprehensive MR approach should comprise both MRCP techniques and parenchymal sequences.

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